Illinois Zip Codes

1396 ZIP codes

Zip Code
City
County
Population ↓
60629ChicagoCook County108,997
60618ChicagoCook County92,235
60632ChicagoCook County86,372
60647ChicagoCook County85,685
60639ChicagoCook County85,248
60804CiceroCook County84,189
60617ChicagoCook County83,188
60608ChicagoCook County82,749
60625ChicagoCook County80,296
60623ChicagoCook County76,611
60634ChicagoCook County75,873
60614ChicagoCook County71,701
60085WaukeganLake County71,465
60657ChicagoCook County71,192
60641ChicagoCook County68,968
60620ChicagoCook County68,330
60640ChicagoCook County67,317
60651ChicagoCook County65,229
60402BerwynCook County64,659
60609ChicagoCook County63,241
60073Round LakeLake County62,071
60016Des PlainesCook County61,988
60628ChicagoCook County61,419
60619ChicagoCook County60,443
60505AuroraKane County59,466
60638ChicagoCook County57,799
60453Oak LawnCook County57,665
60056Mount ProspectCook County56,651
60630ChicagoCook County55,295
60622ChicagoCook County53,944
61761NormalMcLean County53,423
60411Chicago HeightsCook County53,222
60616ChicagoCook County52,707
60148LombardDuPage County52,598
60004Arlington HeightsCook County52,189
60613ChicagoCook County51,961
60440BolingbrookWill County51,412
60637ChicagoCook County51,145
60120ElginCook County50,589
60506AuroraKane County50,300
60649ChicagoCook County50,143
60626ChicagoCook County50,135
60123ElginKane County49,537
60644ChicagoCook County49,445
60645ChicagoCook County48,692
60435JolietWill County48,574
60014Crystal LakeMcHenry County48,568
60643ChicagoCook County48,270
60126ElmhurstDuPage County48,032
60586PlainfieldWill County48,029
60564NapervilleWill County46,832
60010BarringtonCook County46,674
61265MolineRock Island County44,006
60047Lake ZurichLake County43,750
60201EvanstonCook County43,122
60610ChicagoCook County42,904
60660ChicagoCook County42,895
60089Buffalo GroveLake County42,867
60615ChicagoCook County42,780
60540NapervilleDuPage County42,756
60659ChicagoCook County42,621
60115DekalbDeKalb County42,456
60652ChicagoCook County42,223
60188Carol StreamDuPage County42,219
60103BartlettDuPage County42,047
60062NorthbrookCook County42,004
60446RomeovilleWill County41,253
60462Orland ParkCook County40,942
60025GlenviewCook County40,858
60707Elmwood ParkCook County40,845
61554PekinTazewell County40,775
62040Granite CityMadison County40,716
60543OswegoKendall County40,714
62704SpringfieldSangamon County40,495
60193SchaumburgCook County39,451
60107StreamwoodCook County39,450
60110CarpentersvilleKane County39,383
60068Park RidgeCook County39,332
60504AuroraDuPage County39,128
60137Glen EllynDuPage County38,945
60565NapervilleDuPage County38,942
60090WheelingCook County38,753
60563NapervilleDuPage County38,702
60067PalatineCook County38,380
61820ChampaignChampaign County38,128
61201Rock IslandRock Island County37,838
61704BloomingtonMcLean County37,517
60451New LenoxWill County37,488
60074PalatineCook County37,222
60133Hanover ParkDuPage County37,222
60031GurneeLake County37,202
60101AddisonDuPage County37,175
60060MundeleinLake County37,131
60441LockportWill County37,046
60477Tinley ParkCook County36,543
60030GrayslakeLake County35,978
62025EdwardsvilleMadison County35,947
60409Calumet CityCook County35,708
60624ChicagoCook County35,664
61701BloomingtonMcLean County35,480
62269O'FallonSt. Clair County35,467
60611ChicagoCook County35,247
60046Lake VillaLake County34,854
60612ChicagoCook County34,459
60653ChicagoCook County34,364
60605ChicagoCook County34,314
61008BelvidereBoone County34,227
60185West ChicagoDuPage County34,049
60901KankakeeKankakee County33,968
60169Hoffman EstatesCook County33,910
60202EvanstonCook County33,868
62521DecaturMacon County33,453
60517WoodridgeDuPage County33,282
60076SkokieCook County33,170
60139Glendale HeightsDuPage County33,161
60098WoodstockMcHenry County33,116
60302Oak ParkCook County33,063
60007Elk Grove VillageCook County32,768
61832DanvilleVermilion County32,631
60423FrankfortWill County32,596
62702SpringfieldSangamon County32,539
62234CollinsvilleMadison County32,491
60102AlgonquinMcHenry County32,227
60050MchenryMcHenry County31,820
60525La GrangeCook County31,647
60099ZionLake County31,523
60189WheatonDuPage County31,036
60181Villa ParkDuPage County30,973
62301QuincyAdams County30,944
60134GenevaKane County30,938
60714NilesCook County30,857
61401GalesburgKnox County30,809
60174Saint CharlesKane County30,799
62526DecaturMacon County30,572
60631ChicagoCook County30,418
60035Highland ParkLake County30,215
62002AltonMadison County30,166
60538MontgomeryKendall County30,101
60636ChicagoCook County29,833
61108RockfordWinnebago County29,673
62221BellevilleSt. Clair County29,454
60048LibertyvilleLake County29,452
60142HuntleyMcHenry County29,449
61107RockfordWinnebago County29,386
61032FreeportStephenson County29,359
62226BellevilleSt. Clair County29,333
60077SkokieCook County29,330
60187WheatonDuPage County29,258
60005Arlington HeightsCook County29,216
60656ChicagoCook County29,180
60532LisleDuPage County29,135
60459BurbankCook County29,122
60515Downers GroveDuPage County29,112
61821ChampaignChampaign County29,072
60438LansingCook County29,059
60527WillowbrookDuPage County28,983
60156Lake In The HillsMcHenry County28,958
60018Des PlainesCook County28,820
62703SpringfieldSangamon County28,809
60607ChicagoCook County28,797
60646ChicagoCook County28,770
60516Downers GroveDuPage County28,617
60914BourbonnaisKankakee County28,443
61614PeoriaPeoria County28,399
60510BataviaKane County28,393
61604PeoriaPeoria County28,220
60544PlainfieldWill County28,073
60655ChicagoCook County28,000
61801UrbanaChampaign County27,965
61822ChampaignChampaign County27,929
60015DeerfieldLake County27,835
60087WaukeganLake County27,815
60061Vernon HillsLake County27,602
60091WilmetteCook County27,591
60431JolietWill County27,357
62959MarionWilliamson County27,255
60621ChicagoCook County26,997
60452Oak ForestCook County26,939
60560YorkvilleKendall County26,932
61109RockfordWinnebago County26,382
60013CaryMcHenry County26,266
60487Tinley ParkCook County26,198
60175Saint CharlesKane County25,957
60827RiverdaleCook County25,538
60160Melrose ParkCook County25,177
60467Orland ParkCook County25,161
60406Blue IslandCook County24,959
60053Morton GroveCook County24,910
60585PlainfieldWill County24,754
61571WashingtonTazewell County24,712
60439LemontCook County24,670
62650JacksonvilleMorgan County24,627
60448MokenaWill County24,626
60559WestmontDuPage County24,411
60002AntiochLake County24,398
61350OttawaLaSalle County24,385
60706Harwood HeightsCook County24,233
60124ElginKane County24,172
60172RoselleDuPage County24,016
60177South ElginKane County23,931
60108BloomingdaleDuPage County23,647
60051MchenryMcHenry County23,598
60654ChicagoCook County23,475
61611East PeoriaTazewell County23,447
61103RockfordWinnebago County23,441
60153MaywoodCook County23,385
62864Mount VernonJefferson County23,253
61244East MolineRock Island County23,239
60426HarveyCook County23,213
62901CarbondaleJackson County23,178
61615PeoriaPeoria County23,167
60502AuroraDuPage County23,056
60561DarienDuPage County22,997
60008Rolling MeadowsCook County22,863
60491Homer GlenWill County22,779
61111Loves ParkWinnebago County22,756
61021DixonLee County22,593
61115Machesney ParkWinnebago County22,542
60490BolingbrookWill County22,343
60803AlsipCook County22,198
60178SycamoreDeKalb County21,996
60473South HollandCook County21,695
60642ChicagoCook County21,444
60164Melrose ParkCook County21,371
60140HampshireKane County21,287
60419DoltonCook County21,283
60466Park ForestCook County21,243
60045Lake ForestLake County21,159
61081SterlingWhiteside County21,138
61938MattoonColes County20,965
61920CharlestonColes County20,923
60443MattesonCook County20,735
60450MorrisGrundy County20,729
61073RoscoeWinnebago County20,567
60432JolietWill County20,483
61101RockfordWinnebago County20,481
60430HomewoodCook County20,430
60106BensenvilleDuPage County20,321
60194SchaumburgCook County20,312
60093WinnetkaCook County20,272
62801CentraliaMarion County19,976
60805Evergreen ParkCook County19,730
61802UrbanaChampaign County19,722
60404ShorewoodWill County19,668
62305QuincyAdams County19,473
60513BrookfieldCook County19,366
62220BellevilleSt. Clair County19,277
62401EffinghamEffingham County19,240
60104BellwoodCook County18,621
61550MortonTazewell County18,483
60436JolietWill County18,452
61104RockfordWinnebago County18,306
60465Palos HillsCook County18,278
60131Franklin ParkCook County18,258
61364StreatorLaSalle County18,245
62656LincolnLogan County18,216
60542North AuroraKane County18,105
60521HinsdaleDuPage County18,102
62711SpringfieldSangamon County17,759
61455MacombMcDonough County17,653
60304Oak ParkCook County17,564
60084WaucondaLake County17,301
60403Crest HillWill County17,225
60455BridgeviewCook County17,204
62298WaterlooMonroe County17,192
61102RockfordWinnebago County16,875
60154WestchesterCook County16,694
62208Fairview HeightsSt. Clair County16,690
60503AuroraWill County16,660
62249HighlandMadison County16,649
60478Country Club HillsCook County16,591
60192Hoffman EstatesCook County16,536
62223BellevilleSt. Clair County16,534
60546RiversideCook County16,470
60601ChicagoCook County16,398
62568TaylorvilleChristian County16,292
61520CantonFulton County16,176
62035GodfreyMadison County16,172
61603PeoriaPeoria County15,789
60070Prospect HeightsCook County15,721
60447MinookaKendall County15,662
60118DundeeKane County15,623
60433JolietWill County15,485
60417CreteWill County15,390
60064North ChicagoLake County15,380
62294TroyMadison County15,289
62629ChathamSangamon County15,245
60429Hazel CrestCook County15,069
61114RockfordWinnebago County15,017
62522DecaturMacon County15,010
61068RochelleOgle County14,862
60026GlenviewCook County14,743
60457Hickory HillsCook County14,650
60445MidlothianCook County14,632
62236ColumbiaMonroe County14,630
62034Glen CarbonMadison County14,497
60555WarrenvilleDuPage County14,436
60458JusticeCook County14,360
61853MahometChampaign County14,288
60415Chicago RidgeCook County14,284
62966MurphysboroJackson County14,198
60191Wood DaleDuPage County14,193
60130Forest ParkCook County14,165
60088Great LakesLake County14,143
60173SchaumburgCook County14,067
60410ChannahonWill County13,970
61605PeoriaPeoria County13,776
61071Rock FallsWhiteside County13,766
60545PlanoKendall County13,704
61764PontiacLivingston County13,688
60463Palos HeightsCook County13,687
61443KewaneeHenry County13,584
60033HarvardMcHenry County13,574
60558Western SpringsCook County13,557
62206East Saint LouisSt. Clair County13,477
60526La Grange ParkCook County13,468
61866RantoulChampaign County13,442
60712LincolnwoodCook County13,268
60471Richton ParkCook County13,237
60442ManhattanWill County13,135
61705BloomingtonMcLean County12,746
62948HerrinWilliamson County12,679
62052JerseyvilleJersey County12,625
60633ChicagoCook County12,440
62450OlneyRichland County12,327
61548MetamoraWoodford County12,301
60152MarengoMcHenry County12,264
61254GeneseoHenry County12,103
60950MantenoKankakee County12,081
60548SandwichDeKalb County12,040
60554Sugar GroveKane County12,029
60097Wonder LakeMcHenry County11,865
62946HarrisburgSaline County11,795
60012Crystal LakeMcHenry County11,736
60501Summit ArgoCook County11,655
60190WinfieldDuPage County11,652
60143ItascaDuPage County11,645
60176Schiller ParkCook County11,600
60305River ForestCook County11,568
61944ParisEdgar County11,562
61525DunlapPeoria County11,543
60661ChicagoCook County11,513
62812BentonFranklin County11,396
60481WilmingtonWill County11,303
60428MarkhamCook County11,155
62010BethaltoMadison County11,133
60482WorthCook County11,084
61072RocktonWinnebago County11,077
60020Fox LakeLake County11,051
62881SalemMarion County10,995
61356PrincetonBureau County10,959
62896West FrankfortFranklin County10,959
60119ElburnKane County10,872
61462MonmouthWarren County10,855
62918CartervilleWilliamson County10,844
62095Wood RiverMadison County10,801
61080South BeloitWinnebago County10,780
60418CrestwoodCook County10,733
62960MetropolisMassac County10,719
61065Poplar GroveBoone County10,681
60534LyonsCook County10,670
62454RobinsonCrawford County10,604
62258MascoutahSt. Clair County10,572
60171River GroveCook County10,532
61607PeoriaPeoria County10,522
61354PeruLaSalle County10,422
61301La SalleLaSalle County10,380
61523ChillicothePeoria County10,356
62471VandaliaFayette County10,305
62712SpringfieldSangamon County10,275
60044Lake BluffLake County10,271
60475StegerCook County10,185
60523Oak BrookDuPage County10,179
62246GreenvilleBond County10,117
60915BradleyKankakee County10,081
61264MilanRock Island County9,927
60464Palos ParkCook County9,779
60422FlossmoorCook County9,735
60083WadsworthLake County9,699
60514Clarendon HillsDuPage County9,691
60449MoneeWill County9,564
62863Mount CarmelWabash County9,519
61727ClintonDe Witt County9,421
60416Coal CityGrundy County9,372
62024East AltonMadison County9,350
60081Spring GroveMcHenry County9,194
62832Du QuoinPerry County8,986
60041InglesideLake County8,843
62056LitchfieldMontgomery County8,758
61874SavoyChampaign County8,653
60425GlenwoodCook County8,623
60069LincolnshireLake County8,602
60042Island LakeLake County8,589
60022GlencoeCook County8,529
60136GilbertsKane County8,481
62062MaryvilleMadison County8,461
61342MendotaLaSalle County8,389
61856MonticelloPiatt County8,315
62837FairfieldWayne County8,300
61834DanvilleVermilion County8,281
61282SilvisRock Island County8,234
62233ChesterRandolph County8,217
60162HillsideCook County8,213
62049HillsboroMontgomery County8,195
60155BroadviewCook County7,965
62274PinckneyvillePerry County7,942
62626CarlinvilleMacoupin County7,840
60401BeecherWill County7,833
61951SullivanMoultrie County7,777
62707SpringfieldSangamon County7,725
62565ShelbyvilleShelby County7,590
61010ByronOgle County7,399
62618BeardstownCass County7,318
61606PeoriaPeoria County7,232
62906AnnaUnion County7,217
61341MarseillesLaSalle County7,196
61270MorrisonWhiteside County7,096
60135GenoaDeKalb County7,021
62439LawrencevilleLawrence County7,005
62821CarmiWhite County7,005
62557PanaChristian County7,002
62441MarshallClark County6,927
62232CaseyvilleSt. Clair County6,920
61061OregonOgle County6,880
61036GalenaJo Daviess County6,796
61241ColonaHenry County6,775
62278Red BudMonroe County6,692
62549Mt ZionMacon County6,684
62231CarlyleClinton County6,680
62012BrightonJersey County6,678
60096Winthrop HarborLake County6,655
62207East Saint LouisSt. Clair County6,637
60484University ParkWill County6,633
61530EurekaWoodford County6,614
62254LebanonSt. Clair County6,586
62260MillstadtSt. Clair County6,461
62088StauntonMacoupin County6,439
62995ViennaJohnson County6,408
62230BreeseClinton County6,352
61953TuscolaDouglas County6,305
62839FloraClay County6,286
62243FreeburgSt. Clair County6,271
61088WinnebagoWinnebago County6,094
62203East Saint LouisSt. Clair County6,076
60970WatsekaIroquois County6,025
62204East Saint LouisSt. Clair County5,908
61616Peoria HeightsPeoria County5,890
61240Coal ValleyRock Island County5,880
62675PetersburgMenard County5,877
61362Spring ValleyBureau County5,855
61873Saint JosephChampaign County5,811
60468PeotoneWill County5,782
62563RochesterSangamon County5,759
62205East Saint LouisSt. Clair County5,754
60942HoopestonVermilion County5,717
62681RushvilleSchuyler County5,717
62684ShermanSangamon County5,669
60957PaxtonFord County5,642
62930EldoradoSaline County5,630
60954MomenceKankakee County5,612
62951Johnston CityWilliamson County5,574
62615AuburnSangamon County5,490
61252FultonWhiteside County5,424
60469PosenCook County5,423
62448NewtonJasper County5,411
62286SpartaRandolph County5,372
62225Scott Air Force BaseSt. Clair County5,359
60408BraidwoodWill County5,307
60480Willow SpringsCook County5,300
62859McLeansboroHamilton County5,283
60163BerkeleyCook County5,273
60040HighwoodLake County5,227
60021Fox River GroveMcHenry County5,199
62363PittsfieldPike County5,195
61016Cherry ValleyWinnebago County5,185
62201East Saint LouisSt. Clair County5,166
61231AledoMercer County5,158
62263NashvilleWashington County5,109
62561RivertonSangamon County5,107
60195SchaumburgCook County5,018
62353Mount SterlingBrown County5,006
60461Olympia FieldsCook County4,988
61910ArcolaDouglas County4,947
60964Saint AnneKankakee County4,887
60551SheridanLaSalle County4,850
60472RobbinsCook County4,812
60112CortlandDeKalb County4,783
60420DwightLivingston County4,746
61610Creve CoeurTazewell County4,695
62644HavanaMason County4,690
61846GeorgetownVermilion County4,666
61911ArthurMoultrie County4,647
61739FairburyLivingston County4,635
62033GillespieMacoupin County4,628
61568TremontTazewell County4,606
61880TolonoChampaign County4,570
60165Stone ParkCook County4,566
60203EvanstonCook County4,540
60552SomonaukDeKalb County4,538
61755MackinawTazewell County4,530
62285SmithtonSt. Clair County4,512
61745HeyworthMcLean County4,507
61348OglesbyLaSalle County4,501
61025East DubuqueJo Daviess County4,465
61752Le RoyMcLean County4,461
62265New BadenClinton County4,418
61883WestvilleVermilion County4,412
61275Port ByronRock Island County4,393
62293TrentonClinton County4,392
62902CarbondaleWilliamson County4,344
60456HometownCook County4,299
60936Gibson CityFord County4,230
61738El PasoWoodford County4,186
62466SumnerLawrence County4,171
61063PecatonicaWinnebago County4,144
61074SavannaCarroll County4,093
62420CaseyClark County4,082
61448KnoxvilleKnox County4,076
62239DupoSt. Clair County4,076
62411AltamontEffingham County4,070
60151Maple ParkKane County3,944
60071RichmondMcHenry County3,938
62467TeutopolisEffingham County3,929
61064PoloOgle County3,898
62613AthensMenard County3,857
62535ForsythMacon County3,856
61048LenaStephenson County3,851
60421ElwoodWill County3,850
61559PrincevillePeoria County3,845
61547MapletonPeoria County3,835
62690VirdenMacoupin County3,830
61546ManitoTazewell County3,791
62014Bunker HillMacoupin County3,749
61410AbingdonKnox County3,730
62321CarthageHancock County3,717
61054Mount MorrisOgle County3,633
61310AmboyLee County3,556
62060MadisonMadison County3,534
62016CarrolltonGreene County3,519
60518EarlvilleLaSalle County3,514
60606ChicagoCook County3,513
62558PawneeSangamon County3,489
62341HamiltonHancock County3,453
60541NewarkKendall County3,447
61528EdwardsPeoria County3,435
61542LewistownFulton County3,407
60940Grant ParkKankakee County3,399
61360SenecaLaSalle County3,379
62858LouisvilleClay County3,343
62806AlbionEdwards County3,316
61753LexingtonMcLean County3,279
62640GirardMacoupin County3,273
61019DavisStephenson County3,256
62264New AthensSt. Clair County3,237
62069Mount OliveMacoupin County3,230
60301Oak ParkCook County3,207
61536Hanna CityPeoria County3,207
61517BrimfieldPeoria County3,196
61273OrionHenry County3,175
62447NeogaCumberland County3,172
61020Davis JunctionOgle County3,170
62075NokomisMontgomery County3,168
61531FarmingtonFulton County3,144
61084Stillman ValleyOgle County3,118
62952JonesboroUnion County3,050
61422BushnellMcDonough County3,042
62920CobdenUnion County3,017
62275PocahontasBond County3,004
61434GalvaHenry County2,986
61238CambridgeHenry County2,985
62216AvistonClinton County2,980
61277ProphetstownWhiteside County2,978
62449OblongCrawford County2,957
62018Cottage HillsMadison County2,954
62664Mason CityMason County2,945
61956Villa GroveDouglas County2,931
60520HinckleyDeKalb County2,927
61085StocktonJo Daviess County2,923
62550MoweaquaShelby County2,902
62694WinchesterScott County2,891
62938GolcondaPope County2,874
61053Mount CarrollCarroll County2,839
62922Creal SpringsWilliamson County2,824
62924De SotoJackson County2,812
62281Saint JacobMadison County2,811
62884SesserFranklin County2,809
62417BridgeportLawrence County2,807
62428GreenupCumberland County2,801
61858OakwoodVermilion County2,797
61540LaconMarshall County2,771
61748HudsonMcLean County2,732
61529ElmwoodPeoria County2,730
62869Norris CityWhite County2,729
61537HenryMarshall County2,727
62097WordenMadison County2,723
61250ErieWhiteside County2,713
62288SteelevilleRandolph County2,701
62939GorevilleJohnson County2,693
62080RamseyFayette County2,688
61011CaledoniaBoone County2,681
61285ThomsonCarroll County2,661
61046LanarkCarroll County2,659
62822ChristopherFranklin County2,597
62903CarbondaleJackson County2,585
61736DownsMcLean County2,578
61756MaroaMacon County2,564
60922ChebanseKankakee County2,557
62320Camp PointAdams County2,557
61281SherrardMercer County2,553
60157MedinahDuPage County2,550
62082RoodhouseGreene County2,547
62442MartinsvilleClark County2,540
60145KingstonDeKalb County2,539
60043KenilworthCook County2,537
61024DurandWinnebago County2,524
61734DelavanTazewell County2,520
62917Carrier MillsSaline County2,516
62670New BerlinSangamon County2,514
61726ChenoaMcLean County2,508
61561RoanokeWoodford County2,500
61723AtlantaLogan County2,498
62424DieterichEffingham County2,475
61817CatlinVermilion County2,471
60953MilfordIroquois County2,444
61842Farmer CityDe Witt County2,434
61012CapronBoone County2,424
62092White HallGreene County2,422
62237CoultervillePerry County2,411
62468ToledoCumberland County2,369
61533GlasfordPeoria County2,363
62691VirginiaCass County2,355
62890ThompsonvilleFranklin County2,338
61924ChrismanEdgar County2,317
62326ColchesterMcDonough County2,315
60424GardnerGrundy County2,309
61030ForrestonOgle County2,292
61491WyomingStark County2,276
62458Saint ElmoFayette County2,275
60531LelandLaSalle County2,269
61760MinonkWoodford County2,257
62044GreenfieldGreene County2,256
62501ArgentaMacon County2,242
60927CliftonIroquois County2,233
62870OdinMarion County2,232
62692WaverlyMorgan County2,228
60184WayneDuPage County2,220
60556WatermanDeKalb County2,216
62548Mount PulaskiLogan County2,202
62935GalatiaSaline County2,200
62240East CarondeletSt. Clair County2,197
60146KirklandDeKalb County2,193
62677Pleasant PlainsSangamon County2,176
60476ThorntonCook County2,169
62926DongolaUnion County2,167
61535GrovelandTazewell County2,163
62882SandovalMarion County2,162
62910BrookportMassac County2,150
61843FisherChampaign County2,138
62087South RoxanaMadison County2,121
61373UticaLaSalle County2,117
62067MoroMadison County2,106
61427CubaFulton County2,095
62958MakandaJackson County2,091
61326GranvillePutnam County2,083
62418BrownstownFayette County2,076
62215AlbersClinton County2,074
61256HamptonRock Island County2,063
60034HebronMcHenry County2,061
61534Green ValleyTazewell County2,057
62849IukaMarion County2,039
62846InaJefferson County2,026
61732DanversMcLean County2,017
61062Pearl CityStephenson County2,015
62895Wayne CityWayne County2,014
62218BartelsoClinton County2,009
60150MaltaDeKalb County2,007
62844GrayvilleWhite County2,002
62347LibertyAdams County1,999
62271OkawvilleWashington County1,994
62451PalestineCrawford County1,981
61376WalnutBureau County1,960
61849HomerChampaign County1,955
62898WoodlawnJefferson County1,955
62427Flat RockCrawford County1,948
62351MendonAdams County1,934
62312BarryPike County1,933
60444MazonGrundy County1,928
61469OquawkaHenderson County1,926
62808AshleyWashington County1,902
62272PercyRandolph County1,898
62360PaysonAdams County1,898
62257MarissaSt. Clair County1,897
62865MulkeytownFranklin County1,894
62888TamaroaPerry County1,893
62531EdinburgChristian County1,892
62914CairoAlexander County1,880
60955OnargaIroquois County1,877
62907AvaJackson County1,873
62824Clay CityClay County1,865
61483ToulonStark County1,861
62262Mulberry GroveBond County1,854
62443MasonEffingham County1,849
61833TiltonVermilion County1,831
62693WilliamsvilleSangamon County1,805
62379WarsawHancock County1,800
62987StonefortPope County1,788
61914BethanyMoultrie County1,783
62814BlufordJefferson County1,782
61957WindsorShelby County1,778
62001AlhambraMadison County1,766
62047HardinCalhoun County1,760
60511Big RockKane County1,756
61450La HarpeHancock County1,756
61087WarrenJo Daviess County1,755
61864PhiloChampaign County1,754
62823CisneWayne County1,751
61402GalesburgKnox County1,748
61031Franklin GroveLee County1,745
61284Taylor RidgeRock Island County1,745
60948LodaIroquois County1,741
62554OreanaMacon County1,727
60180UnionMcHenry County1,721
60938GilmanIroquois County1,718
62009BenldMacoupin County1,713
62868NobleRichland County1,706
62340GriggsvillePike County1,700
62245GermantownClinton County1,698
62685ShipmanMacoupin County1,692
61415AvonFulton County1,684
62061MarineMadison County1,672
62899XeniaClay County1,672
62912BuncombeJohnson County1,668
61813BementPiatt County1,665
61570WashburnWoodford County1,663
61937LovingtonMoultrie County1,663
61501AstoriaFulton County1,646
61725CarlockWoodford County1,644
62414Beecher CityFayette County1,644
60941HerscherKankakee County1,639
61028ElizabethJo Daviess County1,639
61741ForrestLivingston County1,635
61047Leaf RiverOgle County1,626
62048HartfordMadison County1,626
62084RoxanaMadison County1,601
60966SheldonIroquois County1,600
62544MaconMacon County1,600
60924Cissna ParkIroquois County1,590
62854KinmundyMarion County1,582
60407BracevilleGrundy County1,581
61818Cerro GordoPiatt County1,579
62546MorrisonvilleChristian County1,564
62984ShawneetownGallatin County1,558
61740FlanaganLivingston County1,556
61051MilledgevilleCarroll County1,549
62555OwanecoChristian County1,545
62037GraftonJersey County1,542
62838FarinaFayette County1,540
62242EvansvilleRandolph County1,534
60921ChatsworthLivingston County1,523
62974PittsburgWilliamson County1,523
62983RoyaltonFranklin County1,521
62999ZeiglerFranklin County1,520
62520DawsonSangamon County1,513
60963RossvilleVermilion County1,506
61232AndalusiaRock Island County1,506
61744GridleyMcLean County1,506
62510AssumptionChristian County1,495
62513Blue MoundChristian County1,485
61060OrangevilleStephenson County1,482
62612AshlandCass County1,482
61322DepueBureau County1,481
62661LoamiSangamon County1,477
60958Pembroke TownshipKankakee County1,476
62330Dallas CityHancock County1,472
61377WenonaLaSalle County1,469
61235AtkinsonHenry County1,464
61006AshtonLee County1,460
60913BonfieldKankakee County1,457
61747HopedaleTazewell County1,452
61486ViolaMercer County1,450
62295ValmeyerMonroe County1,449
62366Pleasant HillPike County1,440
61041HanoverJo Daviess County1,436
62354NauvooHancock County1,435
61565SparlandMarshall County1,433
61943OaklandColes County1,430
61283TampicoWhiteside County1,422
62642GreenviewMenard County1,417
62530DivernonSangamon County1,415
61854MansfieldPiatt County1,409
62560RaymondMontgomery County1,408
61421BradfordStark County1,407
62324ClaytonAdams County1,398
62674PalmyraMacoupin County1,398
61865PotomacVermilion County1,395
61369TolucaMarshall County1,393
61742GoodfieldWoodford County1,390
61070Rock CityStephenson County1,389
61327HennepinPutnam County1,385
62476West SalemEdwards County1,385
61259Illinois CityRock Island County1,379
62665MeredosiaMorgan County1,361
62828DahlgrenHamilton County1,359
61272New BostonMercer County1,357
61480StronghurstHenderson County1,352
61361SheffieldBureau County1,351
61759MinierTazewell County1,350
62367PlymouthHancock County1,349
62830DixJefferson County1,338
61931HumboldtColes County1,336
62931ElizabethtownHardin County1,335
62835EnfieldWhite County1,325
62668MurrayvilleMorgan County1,322
61776TowandaMcLean County1,321
62571Tower HillShelby County1,321
60460OdellLivingston County1,319
62573WarrensburgMacon County1,319
61329LaddBureau County1,314
61368TiskilwaBureau County1,314
61473RosevilleWarren County1,307
61728ColfaxMcLean County1,301
61319CornellLivingston County1,297
62545MechanicsburgSangamon County1,296
61001Apple RiverJo Daviess County1,289
62638FranklinMorgan County1,288
61814BismarckVermilion County1,287
61488WatagaKnox County1,284
61078ShannonCarroll County1,255
62933EnergyWilliamson County1,253
61465New WindsorMercer County1,250
62410AllendaleWabash County1,248
61467OneidaKnox County1,244
61859OgdenChampaign County1,244
61353Paw PawLee County1,238
62932ElkvilleJackson County1,238
60935EssexKankakee County1,235
62875PatokaMarion County1,235
61038Garden PrairieBoone County1,233
61870Ridge FarmVermilion County1,230
61913AtwoodPiatt County1,229
61379WyanetBureau County1,224
61330La MoilleBureau County1,222
62621BluffsScott County1,219
61878ThomasboroChampaign County1,217
62074New DouglasMadison County1,213
62086SorentoBond County1,213
60911AshkumIroquois County1,206
62956KarnakMassac County1,206
62462SigelShelby County1,197
61875SeymourChampaign County1,196
61847GiffordChampaign County1,194
62540KincaidChristian County1,186
61877SidneyChampaign County1,185
61729CongervilleWoodford County1,184
60550ShabbonaDeKalb County1,177
61239Carbon CliffRock Island County1,174
61912AshmoreColes County1,173
62460Saint FrancisvilleLawrence County1,171
62964MoundsPulaski County1,170
61370TonicaLaSalle County1,168
61375VarnaMarshall County1,163
61428DahindaKnox County1,162
62463StewardsonShelby County1,160
62990ThebesAlexander County1,155
61412AlexisMercer County1,154
62539IlliopolisSangamon County1,151
62433HutsonvilleCrawford County1,150
62445MontroseJasper County1,150
61770SaybrookMcLean County1,146
62473WatsonEffingham County1,143
62988TammsAlexander County1,141
61242CordovaRock Island County1,136
61447KirkwoodWarren County1,133
62982RosiclareHardin County1,131
62803HoyletonWashington County1,128
62972OzarkJohnson County1,128
61933KansasEdgar County1,114
62611ArenzvilleCass County1,114
62872OpdykeJefferson County1,112
62889TexicoJefferson County1,111
60603ChicagoCook County1,110
61754McLeanMcLean County1,107
62376UrsaAdams County1,106
62816BonnieJefferson County1,104
61490WoodhullHenry County1,103
62827CrossvilleWhite County1,097
61884White HeathPiatt County1,081
62701SpringfieldSangamon County1,078
61234AnnawanHenry County1,073
62028ElsahJersey County1,070
61014ChadwickCarroll County1,064
62355NeboPike County1,062
62534FindlayShelby County1,062
62515BuffaloSangamon County1,059
61841FairmountVermilion County1,057
62440LernaColes County1,055
61349OhioBureau County1,054
61925Dalton CityMacon County1,054
62026EdwardsvilleMadison County1,054
61564South PekinTazewell County1,053
62090VeniceMadison County1,053
62214AddievilleWashington County1,050
61777WapellaDe Witt County1,049
62094WittMontgomery County1,048
62219BeckemeyerClinton County1,046
61052Monroe CenterOgle County1,038
62810Belle RiveJefferson County1,032
62255LenzburgSt. Clair County1,030
61572Yates CityKnox County1,029
61325Grand RidgeLaSalle County1,028
61075Scales MoundJo Daviess County1,026
62627ChandlervilleCass County1,023
61413AlphaHenry County1,012
61569TrivoliPeoria County1,010
62338FowlerAdams County1,010
62277Prairie Du RocherRandolph County1,007
62339GoldenAdams County1,005
61420BlandinsvilleMcDonough County1,002
62268OakdaleWashington County1,001
62853KellMarion County998
62985SimpsonPope County998
61771SecorWoodford County986
62634ElkhartLogan County984
62022DowJersey County978
62063MedoraJersey County977
61942NewmanDouglas County972
60072RingwoodMcHenry County959
61018DakotaStephenson County953
62979RidgwayGallatin County948
61279ReynoldsMercer County944
62017CoffeenMontgomery County943
60602ChicagoCook County938
60959Piper CityFord County938
62422CowdenShelby County938
62244FultsMonroe County933
61230AlbanyWhiteside County932
62893Walnut HillJefferson County927
62021DorseyMadison County925
62551NianticMacon County924
62046HamelMadison County919
62465StrasburgShelby County913
62836EwingFranklin County913
61015ChanaOgle County903
61367SubletteLee County902
60530LeeLee County901
62241Ellis GroveRandolph County900
62567StoningtonChristian County899
60961ReddickKankakee County898
62426EdgewoodClay County890
61314BudaBureau County889
60512BristolKendall County880
62316BowenHancock County876
62625CantrallSangamon County874
60960RankinVermilion County872
61544London MillsFulton County872
61733Deer CreekTazewell County870
61602PeoriaPeoria County862
62688TallulaMenard County852
62423DennisonClark County843
62425DundasRichland County843
61489WilliamsfieldKnox County841
62894WaltonvilleJefferson County841
61257HillsdaleRock Island County836
61774StanfordMcLean County836
61876SidellVermilion County833
62807AlmaMarion County832
62916Campbell HillJackson County830
61039German ValleyStephenson County829
62292TildenRandolph County824
61863PesotumChampaign County821
61441IpavaFulton County815
62378VersaillesBrown County814
61844FithianVermilion County810
61263MathervilleMercer County808
61526EdelsteinPeoria County808
62479WheelerJasper County808
62523DecaturMacon County800
62628ChapinMorgan County799
62963Mound CityPulaski County798
61414AltonaKnox County794
62051IrvingMontgomery County793
62533FarmersvilleMontgomery County788
61436GilsonKnox County787
62477West UnionClark County778
62311AugustaHancock County777
61919CamargoDouglas County776
61440IndustryMcDonough County774
62058LivingstonMadison County770
62949HurstWilliamson County770
60930DanforthIroquois County768
62547Mount AuburnChristian County767
61545LowpointWoodford County766
62343HullPike County761
62436JewettCumberland County760
60951MartintonIroquois County759
61516BensonWoodford County754
62032FillmoreMontgomery County754
62682San JoseMason County751
61930HindsboroDouglas County749
62284SmithboroBond County745
62536GlenarmSangamon County741
60604ChicagoCook County737
61484VermontFulton County737
61262Lynn CenterHenry County734
62919Cave In RockHardin County731
62940GorhamJackson County729
62431HerrickShelby County719
62655KilbourneMason County719
62217BaldwinRandolph County718
62992UllinPulaski County718
62031FieldonJersey County717
62253KeyesportBond County717
62934EqualityGallatin County715
61345NeponsetBureau County701
61722ArrowsmithMcLean County701
62891ValierFranklin County700
62994VergennesJackson County697
62643HartsburgLogan County696
61862PenfieldChampaign County694
60549SerenaLaSalle County691
61438Good HopeMcDonough County691
61453Little YorkWarren County691
61432FairviewFulton County686
62630ChesterfieldMacoupin County686
60474South WilmingtonGrundy County684
62349LoraineAdams County680
61442KeithsburgMercer County678
60479VeronaGrundy County676
61320DalzellBureau County675
61769SauneminLivingston County673
62842GeffWayne County673
62635EmdenLogan County671
60553StewardLee County666
61437GladstoneHenderson County664
61418BiggsvilleHenderson County658
61278Rapids CityRock Island County657
62996Villa RidgePulaski County656
62997WillisvillePerry County656
62957McClureAlexander County655
60952MelvinFord County653
62250HoffmanClinton County652
62461ShumwayEffingham County652
62543LathamLogan County652
62282Saint LiborySt. Clair County646
61049LindenwoodOgle County644
61261LyndonWhiteside County644
61928GaysMoultrie County643
61929HammondPiatt County639
62432HidalgoJasper County639
60962RobertsFord County637
62880Saint PeterFayette County636
62356New CantonPike County633
61882WeldonDe Witt County632
62977RaleighSaline County632
62570ToveyChristian County630
62059LovejoySt. Clair County629
62850JohnsonvilleWayne County627
60929CullomLivingston County624
62474WestfieldClark County624
60918BuckleyIroquois County622
61013CedarvilleStephenson County621
61318ComptonLee County620
62871OmahaGallatin County620
61430East GalesburgKnox County618
61476SeatonMercer County605
61067RidottStephenson County604
61334LostantLaSalle County604
62633EastonMason County603
61260JoyMercer County595
61811AlvinVermilion County595
60931DonovanIroquois County594
62883SchellerJefferson County594
62015ButlerMontgomery County592
61778WaynesvilleDe Witt County591
62954JunctionGallatin County590
61839De LandPiatt County589
61560PutnamPutnam County586
62905Alto PassUnion County583
60910Aroma ParkKankakee County581
61089WinslowStephenson County575
61721ArmingtonTazewell County573
62817BroughtonHamilton County573
60912BeavervilleIroquois County565
62942Grand TowerJackson County565
62280RockwoodJackson County562
62667ModestoMacoupin County560
60928Crescent CityIroquois County559
62689ThayerSangamon County557
61563Saint DavidFulton County556
60537MillingtonLaSalle County551
62036Golden EagleCalhoun County548
60029GolfCook County546
61872SadorusChampaign County543
61932HumeEdgar County542
62248HeckerMonroe County540
61840DeweyChampaign County530
62572WaggonerMontgomery County530
62671New HollandLogan County530
62897WhittingtonFranklin County530
62089Taylor SpringsMontgomery County528
62013BrusselsCalhoun County527
62238CutlerPerry County522
62480Willow HillJasper County522
61482Table GroveFulton County520
62045HamburgCalhoun County520
62027EldredGreene County519
60919CaberyFord County517
60949LudlowChampaign County517
62666MiddletownLogan County517
60968ThawvilleIroquois County516
62848IrvingtonWashington County514
62358NiotaHancock County513
62375TimewellBrown County508
61454LomaxHenderson County505
61470Prairie CityMcDonough County505
62512BeasonLogan County502
61337MaldenBureau County500
61567TopekaMason County500
62093WilsonvilleMacoupin County500
62941Grand ChainPulaski County500
61477SmithfieldFulton County499
61423CameronWarren County497
61378West BrooklynLee County493
61917BroctonEdgar County493
61749KenneyDe Witt County491
62006BatchtownCalhoun County485
62867New HavenWhite County485
61336MagnoliaPutnam County484
61340MarkPutnam County480
62617BathMason County478
62695WoodsonMorgan County473
62325CoatsburgAdams County471
62538HarvelMontgomery County471
62314BaylisPike County470
62079PiasaMacoupin County469
62860MacedoniaFranklin County468
61850IndianolaVermilion County466
61458MaquonKnox County464
61317CherryBureau County460
62380West PointHancock County452
61737EllsworthMcLean County444
62908BelknapMassac County443
61816BroadlandsChampaign County442
62877RichviewWashington County441
61724BellflowerMcLean County439
61625PeoriaPeoria County438
60109BurlingtonKane County434
61312ArlingtonBureau County433
61359SeatonvilleBureau County431
62915CambriaWilliamson County431
61042HarmonLee County428
61830CiscoPiatt County422
61532Forest CityMason County410
62818BrownsEdwards County409
62649HettickMacoupin County408
60917BuckinghamKankakee County407
62444ModeShelby County407
60973WellingtonIroquois County406
62365PlainvilleAdams County406
62421ClaremontRichland County406
62970OlmstedPulaski County405
62923CypressJohnson County404
60946KemptonFord County401
62947HerodPope County401
60932East LynnVermilion County397
62289SummerfieldSt. Clair County397
61425CarmanHenderson County392
62886SimsWayne County390
62469TrillaCumberland County388
60470RansomLaSalle County387
61472RioKnox County387
61485VictoriaKnox County387
61478SmithshireWarren County383
61251FentonWhiteside County382
62514BoodyMacon County380
62831Du BoisWashington County380
62345KinderhookPike County379
61358RutlandLaSalle County374
61730CooksvilleMcLean County369
62885ShobonierFayette County369
62054KaneGreene County367
61735DewittDe Witt County363
61335McNabbPutnam County362
62081RockbridgeGreene County359
62553OconeeShelby County359
61524DunfermlineFulton County358
61050McConnellStephenson County357
62362PerryPike County353
62446Mount ErieWayne County353
61773SibleyFord County352
62478West YorkClark County351
62856LoganFranklin County351
62976PulaskiPulaski County351
61459MariettaFulton County348
61411AdairMcDonough County346
62967New BurnsideJohnson County344
61871RoyalChampaign County343
62969Olive BranchAlexander County342
62297WalshRandolph County338
62434IngrahamClay County335
62874OrientFranklin County335
62833ElleryWayne County334
62953JoppaMassac County333
62053KampsvilleCalhoun County332
62370RockportPike County332
62313BascoHancock County330
62361PearlPike County330
62481YaleJasper County329
62537HarristownMacon County329
62601AlexanderMorgan County329
62673OakfordMenard County328
61007BaileyvilleOgle County325
62091WalshvilleMontgomery County325
62452ParkersburgRichland County325
62556PalmerChristian County321
61720AnchorMcLean County319
62019DonnellsonBond County317
62077PanamaMontgomery County317
61431EllisvilleFulton County315
61321DanaLaSalle County312
62943GrantsburgJohnson County312
60974WoodlandIroquois County310
62862Mill ShoalsWhite County303
60933ElliottFord County300
61363StandardPutnam County300
62927DowellJackson County299
61815BondvilleChampaign County298
61851IvesdaleChampaign County296
61940MetcalfEdgar County294
62631ConcordMorgan County294
62459Sainte MarieJasper County289
62475West LibertyJasper County289
61812ArmstrongVermilion County288
62809BarnhillWayne County288
61936La PlacePiatt County286
62413AnnapolisCrawford County286
61474Saint AugustineKnox County285
60141HinesCook County280
62815Bone GapEdwards County280
62050HillviewGreene County278
61243Deer GroveWhiteside County277
62011BinghamFayette County273
61333Long PointLivingston County270
61274OscoHenry County269
61372Troy GroveLaSalle County269
61466North HendersonMercer County267
62373SutterHancock County267
62819BucknerFranklin County267
62624BrowningSchuyler County266
61848HenningVermilion County263
61344MineralBureau County262
62357New SalemPike County261
61553NorrisFulton County259
62273PierronBond County259
62419CalhounRichland County258
62811BellmontWabash County256
61233AndoverHenry County253
61772ShirleyMcLean County252
61845FooslandChampaign County251
61439HendersonKnox County250
62878RinardWayne County250
61519BryantFulton County249
61315BureauBureau County248
61416BardolphMcDonough County247
62323ChambersburgPike County247
62851KeenesWayne County247
60539MooseheartKane County246
60113CrestonOgle County245
62825CoelloFranklin County243
62921ColpWilliamson County243
60945IroquoisIroquois County242
62887SpringertonWhite County241
61775StrawnLivingston County240
62319CamdenSchuyler County240
61338ManliusBureau County238
62517BulpittChristian County238
61417BerwickWarren County237
61044KentStephenson County235
61313BlackstoneLivingston County232
61449La FayetteStark County229
61451LauraPeoria County225
60129EsmondOgle County224
61552MossvillePeoria County220
62348LimaAdams County219
60557WedronLaSalle County218
61311AnconaLivingston County217
62352MiltonPike County215
61079ShirlandWinnebago County213
62639FrederickSchuyler County213
62374TennesseeHancock County211
62438LakewoodShelby County211
60934EmingtonLivingston County208
60920CampusLivingston County204
62998Wolf LakeUnion County198
61316Cedar PointLaSalle County196
61941MurdockDouglas County196
61955VermilionEdgar County193
61475SciotaMcDonough County192
60208EvanstonCook County191
61468OphiemHenry County190
62892VernonMarion County190
61258HooppoleHenry County188
62663ManchesterScott County185
61810AllertonVermilion County183
62518ChestnutLogan County181
61460MediaHenderson County179
61059NoraJo Daviess County176
62975PomonaJackson County169
62085SawyervilleMacoupin County167
62334ElvastonHancock County166
61743GraymontLivingston County165
62950JacobJackson County160
61043HolcombOgle County159
62083RosamondChristian County157
62464StoyCrawford County157
61435GerlawWarren County155
60111ClareDeKalb County153
61949RedmonEdgar County152
61419Bishop HillHenry County151
61539Kingston MinesPeoria County150
62023EagarvilleMacoupin County150
62610AlseyScott County150
62672NilwoodMacoupin County150
61452LittletonSchuyler County146
61857MuncieVermilion County146
61731CropseyMcLean County145
62841Freeman SpurWilliamson County140
61332LeonoreLaSalle County139
61831CollisonVermilion County139
61852LongviewChampaign County138
61471RaritanHenderson County136
62876RadomWashington County135
62820Burnt PrairieWhite County133
62852KeensburgWabash County132
61750LaneDe Witt County129
62346La PrairieAdams County128
62829DaleHamilton County128
62359PalomaAdams County126
62861MaunieWhite County124
60956PapineauIroquois County122
61077SewardWinnebago County118
61112RockfordWinnebago County113
61543LiverpoolFulton County111
61037GaltWhiteside County105
61323DoverBureau County105
61426CastletonStark County105
61855MilminePiatt County103
61027EleroyStephenson County102
62078PattersonGreene County102
61541La RoseMarshall County99
62336FerrisHancock County94
61562RomePeoria County92
62622Bluff SpringsCass County90
62843Golden GateWayne County90
60437KinsmanGrundy County88
60536MillbrookKendall County88
61324EldenaLee County85
61371TriumphLaSalle County85
60144KanevilleKane County83
61328KasbeerBureau County78
61276PreemptionMercer County77
60926ClaytonvilleIroquois County76
62030FidelityJersey County75
62076OhlmanMontgomery County73
62928EddyvillePope County71
60519EolaDuPage County70
62279RenaultMonroe County70
61057NachusaLee County67
61236BarstowRock Island County65
62532ElwinMacon County64
60969Union HillKankakee County60
61751LawndaleLogan County60
61346New BedfordBureau County47
61374Van OrinBureau County46
62519CornlandLogan County46
62541Lake ForkLogan County46
62879Sailor SpringsClay County46
62961MillcreekUnion County45
62965MuddySaline County45
61424Camp GroveMarshall County34
62256MaeystownMonroe County34
62098WrightsGreene County32
61479SpeerMarshall County24
61433FiattFulton County22
62344HuntsvilleSchuyler County20
62266New MemphisClinton County13
62261ModocRandolph County12
60075RussellLake County0
60183WascoKane County0
60939GoodwineIroquois County0
60967StocklandIroquois County0
61091WoosungOgle County0
61237Buffalo PrairieRock Island County0
61331Lee CenterLee County0
62706SpringfieldSangamon County0
62962Miller CityAlexander County0

Overview of ZIP Codes in Illinois

ZCTAs are geographic areas created by the US Census Bureau to approximate the delivery areas of ZIP Codes for statistical analysis. While ZCTAs use the same five-digit codes as ZIP Codes, they represent defined geographic areas that may not exactly match the mail delivery routes of ZIP Codes.
60 61 62
Illinois Zip Prefixes

ZIP Codes and ZCTAs (ZIP Code Tabulation Areas) serve different purposes. ZIP Codes are postal codes created by the USPS for mail delivery, and are not correlated to geographical coordinates. ZCTAs provide a way to analyze census data in relation to ZIP Code areas while maintaining geographic consistency and protecting privacy. In addition, there are more ZIP Codes than ZCTAs, because many ZIP Codes for PO Boxes or unique entities don't have corresponding ZCTAs (US Census).

The data shown reflect ZCTAs from the US Census. As of 2024, there are 1,396 ZCTAs in Illinois (US Census).