Cities in Cook County, Illinois by Population (2024)

There are 166 cities in Cook County, Illinois.

Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)

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City
Rank
State
2024 Population
2020 Census
Annual Change
Density (mi²)
Area (mi²)
Chicago1Illinois2,590,0022,740,076-1.43%11,372227.75
Elgin2Illinois111,750114,604-0.63%2,93038.14
Cicero3Illinois78,91084,928-1.87%13,4545.87
Schaumburg4Illinois74,00778,443-1.48%3,82519.35
Evanston5Illinois73,23177,857-1.55%9,4147.78
Arlington Heights6Illinois72,94377,447-1.52%4,39116.61
Skokie7Illinois63,28367,711-1.72%6,28810.06
Palatine8Illinois63,27467,696-1.72%4,48214.12
Des Plaines9Illinois56,70660,482-1.64%3,98314.24
Orland Park10Illinois56,45558,567-0.93%2,56322.03
Oak Lawn11Illinois54,40358,169-1.7%6,3478.57
Berwyn12Illinois53,03057,012-1.84%13,5843.90
Mount Prospect13Illinois52,97556,711-1.73%4,94210.72
Tinley Park14Illinois52,73755,837-1.45%3,26216.17
Oak Park15Illinois50,71054,396-1.78%10,7894.70
Hoffman Estates16Illinois48,96252,402-1.73%2,37520.61
Downers Grove17Illinois48,58250,126-0.79%3,31614.65
Glenview18Illinois45,96248,554-1.39%3,17714.47
Elmhurst19Illinois44,81645,728-0.51%4,38610.22
Lombard20Illinois43,33144,381-0.6%4,26510.16
Buffalo Grove21Illinois42,04643,092-0.62%4,3999.56
Romeoville22Illinois40,36039,8740.3%2,08919.32
Bartlett23Illinois39,28841,020-1.09%2,49015.78
Carol Stream24Illinois38,32939,759-0.92%4,2019.12
Park Ridge25Illinois37,04439,512-1.64%5,2267.09
Streamwood26Illinois36,85939,443-1.72%4,7217.81
Wheeling27Illinois36,67639,196-1.69%4,2298.67
Hanover Park28Illinois35,40237,350-1.36%5,5136.42
Addison29Illinois34,61735,637-0.73%3,5229.83
Calumet City30Illinois33,50435,914-1.76%4,6547.20
Northbrook31Illinois33,24235,122-1.39%2,51013.24
Woodridge32Illinois33,06534,109-0.78%3,4339.63
Elk Grove Village33Illinois30,61232,706-1.68%2,64711.56
Highland Park34Illinois30,17330,1530.02%2,46612.23
Niles35Illinois28,80830,802-1.7%4,9265.85
Burbank36Illinois27,51829,348-1.63%6,5994.17
Lansing37Illinois27,02528,975-1.77%3,6227.46
Vernon Hills38Illinois26,69626,822-0.12%3,4507.74
Wilmette39Illinois26,44528,083-1.52%4,8965.40
Oak Forest40Illinois25,55027,370-1.75%4,2416.03
Chicago Heights41Illinois25,54727,383-1.76%2,48410.28
Homer Glen42Illinois24,38824,504-0.12%1,09822.21
South Elgin43Illinois24,17723,8370.35%3,3267.27
Westmont44Illinois23,57124,381-0.85%4,7005.01
Morton Grove45Illinois23,52725,215-1.76%4,6245.09
Melrose Park46Illinois23,07124,723-1.76%5,3004.35
Rolling Meadows47Illinois23,01824,110-1.17%4,0995.62
Elmwood Park48Illinois22,77824,430-1.78%11,9381.91
Maywood49Illinois22,44623,418-1.07%8,2612.72
Bloomingdale50Illinois22,29922,349-0.05%3,2966.77
Roselle51Illinois22,08822,922-0.93%3,9945.53
Villa Park52Illinois21,37822,204-0.95%4,5274.72
Darien53Illinois21,17121,997-0.96%3,4326.17
Frankfort54Illinois21,04220,3120.88%1,34815.62
Blue Island55Illinois20,95422,474-1.78%5,1474.07
Park Forest56Illinois20,28421,624-1.63%4,0894.96
South Holland57Illinois19,98121,389-1.73%2,7617.24
Dolton58Illinois19,90221,340-1.77%4,3544.57
Mokena59Illinois19,66419,868-0.26%2,2528.73
Lake Zurich60Illinois19,49319,755-0.33%2,8166.92
Harvey61Illinois18,92120,259-1.74%3,0496.21
Deerfield62Illinois18,74419,156-0.55%3,3845.54
Evergreen Park63Illinois18,55319,869-1.74%5,8663.16
Brookfield64Illinois18,14819,404-1.7%5,9233.06
Homewood65Illinois18,08519,385-1.76%3,4675.22
Bensenville66Illinois18,04918,755-0.97%3,2635.53
Matteson67Illinois17,85319,025-1.62%1,9229.29
Alsip68Illinois17,72418,990-1.75%2,7156.53
Franklin Park69Illinois17,71718,401-0.96%3,7094.78
Bellwood70Illinois17,43918,723-1.81%7,2722.40
Lemont71Illinois17,39917,663-0.38%2,0548.47
Palos Hills72Illinois17,30318,463-1.65%4,0754.25
Hinsdale73Illinois17,09717,373-0.4%3,6984.62
Bridgeview74Illinois15,95516,979-1.58%3,8604.13
Westchester75Illinois15,69016,834-1.79%4,2573.69
Country Club Hills76Illinois15,62516,715-1.71%3,1444.97
La Grange77Illinois15,36816,274-1.45%6,0862.52
Prospect Heights78Illinois14,97715,995-1.67%3,5604.21
Norridge79Illinois14,33115,207-1.5%7,9261.81
Chicago Ridge80Illinois13,55914,383-1.5%5,9782.27
Hickory Hills81Illinois13,55814,456-1.63%4,7672.84
Midlothian82Illinois13,36414,266-1.66%4,7412.82
Forest Park83Illinois13,32214,282-1.77%5,5462.40
Western Springs84Illinois13,02613,600-1.09%4,6772.79
La Grange Park85Illinois12,58013,438-1.67%5,6342.23
Lincolnwood86Illinois12,55913,419-1.68%4,6652.69
Hazel Crest87Illinois12,45413,340-1.74%3,6663.40
Richton Park88Illinois12,14612,736-1.2%2,7654.39
Winnetka89Illinois12,03912,701-1.35%3,1593.81
Northlake90Illinois11,99412,808-1.66%3,7763.18
Justice91Illinois11,83012,568-1.53%4,1652.84
Palos Heights92Illinois11,24212,022-1.7%2,9793.77
River Forest93Illinois10,97511,679-1.58%4,4252.48
Schiller Park94Illinois10,89611,670-1.74%3,9342.77
Burr Ridge95Illinois10,89211,182-0.66%1,4587.47
Markham96Illinois10,86011,622-1.72%2,0095.41
Barrington97Illinois10,38710,703-0.76%2,2504.62
Summit98Illinois10,34411,120-1.84%4,8822.12
Worth99Illinois10,24710,933-1.64%4,3252.37
River Grove100Illinois10,20410,578-0.9%4,2682.39
Crestwood101Illinois10,17610,790-1.48%3,3373.05
Lyons102Illinois10,04710,775-1.78%4,5522.21
Riverdale103Illinois9,90410,628-1.8%2,7703.58
Frankfort Square104Illinois9,6738,8311.61%3,8752.50
Sauk Village105Illinois9,2599,897-1.69%2,3193.99
Itasca106Illinois9,2039,521-0.85%1,8335.02
Steger107Illinois9,1089,560-1.23%2,6763.40
Flossmoor108Illinois9,0159,663-1.76%2,4623.66
Lynwood109Illinois8,9129,098-0.51%1,7535.08
Willowbrook110Illinois8,9029,210-0.86%3,4572.58
Riverside111Illinois8,6149,266-1.86%4,3551.98
Harwood Heights112Illinois8,4149,030-1.8%10,1990.82
Glencoe113Illinois8,3978,827-1.26%2,2583.72
Crete114Illinois8,2388,442-0.61%8759.42
Glenwood115Illinois8,0688,636-1.73%2,4723.26
Lincolnshire116Illinois7,9077,937-0.09%1,7344.56
Oak Brook117Illinois7,9018,149-0.78%9917.98
Broadview118Illinois7,7297,965-0.76%4,3491.78
Hillside119Illinois7,7288,282-1.75%2,4393.17
Inverness120Illinois7,1397,585-1.53%1,0936.53
University Park121Illinois6,9117,129-0.78%64410.73
North Riverside122Illinois6,8927,402-1.81%4,1921.64
Stickney123Illinois6,6537,093-1.63%3,4581.92
Calumet Park124Illinois6,5166,994-1.79%5,8331.12
Orland Hills125Illinois6,4196,865-1.7%5,6061.15
Countryside126Illinois6,0056,405-1.64%2,0872.88
Willow Springs127Illinois5,6495,841-0.84%1,3624.15
Northfield128Illinois5,4075,749-1.55%1,6743.23
Posen129Illinois5,2015,571-1.74%4,4491.17
Lake Barrington130Illinois5,1095,0810.14%8915.74
Monee131Illinois5,0535,115-0.3%1,1294.47
Berkeley132Illinois4,9665,324-1.76%3,5421.40
South Barrington133Illinois4,9155,069-0.77%6597.46
Palos Park134Illinois4,6854,899-1.12%7266.45
Fox River Grove135Illinois4,5964,686-0.48%2,6851.71
Kildeer136Illinois4,4264,0841.98%1,0264.31
Olympia Fields137Illinois4,4264,712-1.58%1,5062.94
Robbins138Illinois4,4224,620-1.1%3,0521.45
Stone Park139Illinois4,2874,565-1.58%12,4620.34
Hometown140Illinois4,0294,331-1.83%8,4110.48
Barrington Hills141Illinois3,9424,096-0.95%14626.99
Indian Head Park142Illinois3,8134,057-1.57%4,0910.93
Burnham143Illinois3,7754,035-1.69%2,0351.85
South Chicago Heights144Illinois3,7374,005-1.76%2,3641.58
Riverwoods145Illinois3,7053,787-0.54%9343.97
Rosemont146Illinois3,6723,940-1.79%2,0491.79
Deer Park147Illinois3,5963,674-0.53%9803.67
East Dundee148Illinois3,0853,175-0.71%1,0542.93
North Barrington149Illinois3,0813,135-0.42%6524.72
Dixmoor150Illinois2,8363,002-1.43%2,2711.25
Oakbrook Terrace151Illinois2,6462,742-0.9%2,0231.31
Kenilworth152Illinois2,3472,505-1.64%3,8670.61
Thornton153Illinois2,2162,378-1.77%9332.38
Wayne154Illinois2,1932,281-0.99%3835.73
Merrionette Park155Illinois1,8411,961-1.6%4,9090.38
Ford Heights156Illinois1,6871,811-1.8%8671.95
Phoenix157Illinois1,5831,701-1.8%3,4120.46
Port Barrington158Illinois1,5551,581-0.38%1,3411.16
Hodgkins159Illinois1,4441,496-0.89%5322.71
East Hazel Crest160Illinois1,2001,290-1.8%1,5310.78
Tower Lakes161Illinois1,1921,224-0.67%1,2970.92
Bannockburn162Illinois1,0081,014-0.1%4972.03
Forest View163Illinois740792-1.73%6341.17
Bedford Park164Illinois576596-0.86%975.93
Golf165Illinois487511-1.22%1,0870.45
McCook166Illinois232248-1.7%892.61
showing: 166 rows

Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.

What is the largest city in Cook County, Illinois?

Chicago is the largest city in Cook County.

What is the smallest city in Cook County, Illinois?

McCook is the smallest city in Cook County.

How many cities are in Cook County?

There are 166 cities in Cook County, Illinois.

Frequently Asked Questions