US Cities Starting with O

US cities with populations over 1,000 starting with O.

City
State
2026 Pop. ↓
Oklahoma CityOklahoma727,550
OmahaNebraska487,917
OaklandCalifornia440,592
OrlandoFlorida340,004
Oyster BayNew York301,359
Overland ParkKansas204,818
OxnardCalifornia199,197
OntarioCalifornia189,505
OceansideCalifornia169,666
OlatheKansas151,803
OrangeCalifornia138,080
OdessaTexas124,023
O'FallonMissouri96,958
OremUtah94,699
OgdenUtah89,987
OcalaFlorida73,305
Old BridgeNew Jersey70,634
OshkoshWisconsin67,507
OwensboroKentucky60,968
Orland ParkIllinois57,819
OlympiaWashington56,848
Oak LawnIllinois56,057
OcoeeFlorida52,760
Oak ParkIllinois52,421
OrangetownNew York50,676
OakleyCalifornia48,449
Oro ValleyArizona48,414
Olive BranchMississippi47,819
OdentonMaryland47,536
Oakland ParkFlorida45,590
Ormond BeachFlorida45,021
OwassoOklahoma44,211
OviedoFlorida41,678
OswegoIllinois40,948
OssiningNew York40,633
OrionMichigan39,082
Oak CreekWisconsin38,710
Oregon CityOregon38,298
OaktonVirginia37,378
Owings MillsMaryland36,781
OpelikaAlabama36,750
OlneyMaryland36,498
Oak RidgeTennessee36,223
OrangevaleCalifornia35,510
OildaleCalifornia35,499
OakvilleMissouri34,941
Oakleaf PlantationFlorida33,142
O'FallonIllinois32,600
OrchardsWashington32,061
OrcuttCalifornia31,833
OakdaleMinnesota31,103
Orchard ParkNew York29,827
Oak ParkMichigan28,969
OceanNew Jersey28,124
OssiningNew York27,481
OxfordMississippi27,135
OwatonnaMinnesota26,689
Oak ForestIllinois26,656
OtsegoMinnesota25,454
OttumwaIowa25,320
Oak RidgeFlorida24,790
OshtemoMichigan24,113
OzarkMissouri24,004
Oak HarborWashington23,947
OxfordMichigan23,282
OakdaleCalifornia23,253
OnondagaNew York22,374
OxfordOhio22,236
OxfordAlabama22,193
Old JamestownMissouri21,568
OaklandMichigan20,771
OnalaskaWisconsin20,550
OconomowocWisconsin20,547
OrovilleCalifornia20,423
OlivehurstCalifornia20,321
OgdenNew York19,931
OregonOhio19,608
OrindaCalifornia19,511
OrangeTexas19,423
Ocean SpringsMississippi19,140
OwegoNew York18,776
Oxon HillMaryland18,668
OttawaIllinois18,663
Ocean PointeHawaii18,103
Oak GroveOregon17,588
OswegoNew York17,039
On Top of the WorldFlorida16,950
OjusFlorida16,885
OneontaNew York16,323
Opa-lockaFlorida16,176
Orange CityFlorida15,917
OverlandMissouri15,378
OceolaMichigan14,985
OpelousasLouisiana14,962
OldsmarFlorida14,473
OrangeConnecticut14,392
OwossoMichigan14,391
OzarkAlabama14,270
Oak ParkCalifornia13,620
OxfordMassachusetts13,514
OrangeburgSouth Carolina13,441
OleanNew York13,425
OxfordConnecticut13,374
Olympia HeightsFlorida13,108
OaklandNew Jersey12,836
OttawaKansas12,736
OronoMaine12,608
OatfieldOregon12,546
OverleaMaryland12,466
Oak GroveSouth Carolina12,433
OregonWisconsin12,166
Ocean PinesMaryland12,101
OntarioOregon12,014
Oak HillsOregon11,494
OskaloosaIowa11,482
OkmulgeeOklahoma11,421
OaklandTennessee11,264
Ocean CityNew Jersey10,969
OntarioNew York10,814
Old SaybrookConnecticut10,716
OneidaNew York9,942
Orange CoveCalifornia9,826
Oak GroveMissouri9,604
Old Orchard BeachMaine9,585
Oak GroveMinnesota9,577
Oak IslandNorth Carolina9,568
OakbrookKentucky9,557
OakwoodOhio9,408
OthelloWashington9,378
OceanNew Jersey9,359
Oil CityPennsylvania9,243
OronokoMichigan9,086
OlivetteMissouri9,046
OxfordNorth Carolina9,046
OgdensburgNew York8,970
Orange ParkFlorida8,940
Orange BeachAlabama8,914
O'HaraPennsylvania8,881
OrtingWashington8,845
OgdenNorth Carolina8,732
Old ForgePennsylvania8,678
Olmsted FallsOhio8,675
OrosiCalifornia8,658
OberlinOhio8,607
OswegoNew York8,524
OrrvilleOhio8,461
OrlandCalifornia8,413
OdessaFlorida8,378
OronoMinnesota8,288
OradellNew Jersey8,287
OlneyIllinois8,281
Ocean ShoresWashington8,137
Oak BrookIllinois8,109
Oak HillsCalifornia8,100
Oak RidgeNorth Carolina7,951
Oak GroveKentucky7,844
ObetzOhio7,779
OakwoodGeorgia7,738
Old LymeConnecticut7,721
Old TownMaine7,661
OrangeMassachusetts7,560
Oak HillWest Virginia7,521
Oak PointTexas7,467
OjaiCalifornia7,447
OhioPennsylvania7,232
OlivarezTexas7,198
Oroville EastCalifornia7,159
OrlovistaFlorida7,114
OscodaMichigan7,113
Old TappanNew Jersey7,061
OceanoCalifornia7,055
OneontaAlabama7,045
Ormond-by-the-SeaFlorida6,860
OntwaMichigan6,853
Ocean CityMaryland6,851
OppAlabama6,740
Ocean CityFlorida6,695
OntarioOhio6,689
OceanportNew Jersey6,684
Orland HillsIllinois6,614
Orchard MesaColorado6,542
Orange CityIowa6,537
OakmontPennsylvania6,535
OrleansMassachusetts6,523
OakdaleLouisiana6,503
Oak ViewCalifornia6,427
OaklandMaine6,350
OsceolaArkansas6,338
OakfieldMichigan6,237
OdenvilleAlabama6,208
OxfordPennsylvania6,114
OtsegoMichigan6,000
OkeechobeeFlorida5,932
OxfordPennsylvania5,920
Offutt AFBNebraska5,898
OdessaMissouri5,737
OsceolaIowa5,731
OregonMichigan5,728
OelweinIowa5,725
OspreyFlorida5,718
OrangetreeFlorida5,601
OrangeVirginia5,453
OakhurstCalifornia5,447
Oak BluffsMassachusetts5,395
Old Fig GardenCalifornia5,392
OlyphantPennsylvania5,392
OliveMichigan5,325
Otis Orchards-East FarmsWashington5,317
Orchard HomesMontana5,299
Old WestburyNew York5,259
OmakWashington5,254
Osage BeachMissouri5,186
OneontaNew York4,947
OvillaTexas4,923
Okauchee LakeWisconsin4,920
Old LycomingPennsylvania4,909
OwossoMichigan4,786
Ottawa HillsOhio4,777
OgallalaNebraska4,669
OcontoWisconsin4,646
OssipeeNew Hampshire4,632
Old StineCalifornia4,623
Oak Park HeightsMinnesota4,568
Olympia FieldsIllinois4,564
Oak GroveTennessee4,496
Oak HillTennessee4,496
OxfordMaine4,479
OttawaOhio4,427
OwegoNew York4,394
OliveNew York4,262
OsawatomieKansas4,217
OtsegoMichigan4,028
OaklynNew Jersey3,998
OdessaMichigan3,985
OswegatchieNew York3,979
OneidaMichigan3,970
OneidaTennessee3,923
OrringtonMaine3,921
OasisCalifornia3,893
OleyPennsylvania3,883
One LoudounVirginia3,847
OaklandFlorida3,826
OzarkArkansas3,646
OmroWisconsin3,633
OtsegoNew York3,623
OglesbyIllinois3,600
OrangeOhio3,598
O'NeillNebraska3,564
OxfordNew York3,559
OregonIllinois3,557
OsageIowa3,531
OrangevilleMichigan3,495
OssianIndiana3,470
Oliver SpringsTennessee3,462
OwascoNew York3,462
Owens Cross RoadsAlabama3,458
OxfordMichigan3,444
OakwoodOhio3,406
OronogoMissouri3,350
OnalaskaTexas3,346
Orchard CityColorado3,331
OhiovillePennsylvania3,309
OntelauneePennsylvania3,277
OrofinoIdaho3,272
Orchidlands EstatesHawaii3,264
Ocean ViewDelaware3,196
OnondagaMichigan3,174
OveriselMichigan3,163
OakridgeOregon3,111
OkemahOklahoma3,092
OlgaFlorida3,089
OakfieldNew York3,079
Orchard ParkNew York3,064
OostburgWisconsin3,054
OracleArizona3,031
Oconto FallsWisconsin3,025
OlneyTexas3,010
OrwigsburgPennsylvania3,007
Oak Ridge NorthTexas2,979
Otsego LakeMichigan2,963
Oak Trail ShoresTexas2,933
OsceolaWisconsin2,917
Ocala EstatesFlorida2,889
Oaklawn-SunviewKansas2,877
OwensvilleMissouri2,798
OnawaIowa2,797
Oakbrook TerraceIllinois2,785
OrleansMichigan2,781
Oak HarborOhio2,773
Osage CityKansas2,770
OdellOregon2,761
Oak GroveMississippi2,708
OcillaGeorgia2,702
OaklandPennsylvania2,699
OrleansNew York2,694
OtegoNew York2,685
Oak GroveVirginia2,608
OsceolaIndiana2,587
OwingsMaryland2,550
OliveMichigan2,529
OkanoganWashington2,518
OsseoMinnesota2,499
OxfordNew Jersey2,453
OcklawahaFlorida2,420
OkolonaMississippi2,371
OtiscoNew York2,366
OakboroNorth Carolina2,353
OgdensburgNew Jersey2,328
OvertonTexas2,323
OtiscoMichigan2,316
Oriole BeachFlorida2,314
OzonaTexas2,314
OdemTexas2,301
OxfordGeorgia2,295
Oyster Bay CoveNew York2,291
OliviaMinnesota2,275
Oakland CityIndiana2,269
OntonagonMichigan2,264
OvidNew York2,257
Oak HillFlorida2,223
OvidMichigan2,219
OrlandMaine2,216
Orchard Lake VillageMichigan2,211
OvidMichigan2,211
Olmos ParkTexas2,181
OrdNebraska2,119
OliverPennsylvania2,109
Old BrookvilleNew York2,103
OronocoMinnesota2,098
OrleansIndiana2,067
OliverPennsylvania2,047
Oakwood HillsIllinois2,043
Ocean GateNew Jersey2,016
OgdenIowa1,965
OakleyKansas1,963
OldmansNew Jersey1,961
OrovilleWashington1,957
OrtonvilleMinnesota1,955
OakhurstOklahoma1,920
OakhamMassachusetts1,915
OlatheColorado1,914
OtisfieldMaine1,904
OltonTexas1,898
OssunLouisiana1,893
Ocean RidgeFlorida1,880
OsceolaMichigan1,858
OsseoWisconsin1,845
Oak RidgeTexas1,840
OleanNew York1,838
Ocean ParkWashington1,824
OaklandMaryland1,797
OakfieldNew York1,789
OppenheimNew York1,767
OakesNorth Dakota1,761
OsakisMinnesota1,732
Old MiakkaFlorida1,721
Oak LeafTexas1,716
OrionIllinois1,698
OsburnIdaho1,691
OwentonKentucky1,688
OglalaSouth Dakota1,673
OlivetTennessee1,669
OssinekeMichigan1,654
OgdenKansas1,650
Oil CreekPennsylvania1,650
OrfordvilleWisconsin1,650
Orchard Grass HillsKentucky1,642
OswegoKansas1,612
OwingsvilleKentucky1,612
OsgoodIndiana1,605
OgunquitMaine1,604
OlympiaSouth Carolina1,601
OberlinKansas1,599
OtisMassachusetts1,598
OakleyUtah1,532
Olive HillKentucky1,526
Old River-WinfreeTexas1,515
OvidMichigan1,500
OlivetMichigan1,498
OrwellOhio1,496
Orange BlossomCalifornia1,489
OaklandIowa1,488
Owls HeadMaine1,488
OsmondWyoming1,471
OttoPennsylvania1,461
OmaoHawaii1,459
OverfieldPennsylvania1,425
Oak HillOhio1,419
OakdalePennsylvania1,398
OdonIndiana1,376
OologahOklahoma1,372
OaklandMissouri1,367
OliverMichigan1,362
OceanaWest Virginia1,359
OblongIllinois1,348
OmegaGeorgia1,344
OkawvilleIllinois1,338
OrtonvilleMichigan1,335
OaklandNebraska1,332
OllaLouisiana1,332
Oak GroveLouisiana1,331
OaklandPennsylvania1,331
OwensvilleIndiana1,331
OrangeNew York1,330
OriskanyNew York1,330
OrangeMichigan1,327
OxfordNew York1,314
OnekamaMichigan1,313
OnargaIllinois1,295
OrangevilleUtah1,279
OberlinLouisiana1,278
OntonagonMichigan1,266
OakwoodIllinois1,263
OrwellVermont1,254
Oyster CreekTexas1,249
OrangevilleNew York1,248
OstranderOhio1,243
OsborneKansas1,236
Ore CityTexas1,228
OrfordNew Hampshire1,222
Oak Grove HeightsArkansas1,212
OkarcheOklahoma1,207
OrwellPennsylvania1,200
OhatcheeAlabama1,197
OranMissouri1,196
OrangePennsylvania1,194
OxfordIndiana1,188
Ohkay OwingehNew Mexico1,186
Orange GroveTexas1,180
OgemawMichigan1,179
OnancockVirginia1,178
OccidentalCalifornia1,173
Ogden DunesIndiana1,160
OsinoNevada1,150
OoliticIndiana1,142
OtterbeinIndiana1,139
OrwellNew York1,090
OccoquanVirginia1,086
OakfieldWisconsin1,068
OrangeVermont1,064
OrdwayColorado1,058
OskaloosaKansas1,052
OquawkaIllinois1,051
OrlindaTennessee1,044
OkeeneOklahoma1,039
OxfordKansas1,036
OrangeMichigan1,024
OsceolaMissouri1,023
OnstedMichigan1,001

Quick Stats

How many US cities start with O?

There are 449 cities in the United States that start with O and have a population over 1,000.

What is the largest US city that starts with O?

The largest US city that starts with O is Oklahoma City, Oklahoma with a population of 727,550.

Sources

  1. US Census: 2025 Gazetteer Files
  2. City and Town Population Totals: 2020-2024