Cook County, Illinois Population 2018

Cook County, Illinois's estimated population is 5,211,263 with a growth rate of -0.31% in the past year according to the most recent United States census data. Cook County, Illinois is the 1st largest county in Illinois.

Year Population Growth Growth Rate
20175,211,263-16,312-0.31%
20165,227,575-3,781-0.07%
20165,231,356-14,475-0.28%
20155,245,831-7,925-0.15%
20145,253,7563,2580.06%
20135,250,49813,3240.25%
20125,237,17420,1250.39%
20115,217,04917,5720.34%
20105,199,47794,4101.85%
19905,105,067-148,588-2.83%
19805,253,655-238,714-4.35%
19705,492,369362,6447.07%
19605,129,725620,93313.77%
19504,508,792445,45010.96%
19404,063,34281,2192.04%
19303,982,123929,10630.43%
19203,053,017647,78426.93%
19102,405,233566,49830.81%
19001,838,735646,81354.27%
18901,191,922584,39896.19%
1880607,524257,55873.60%
1870349,966205,012141.43%
1860144,954101,569234.11%
185043,38533,184325.30%
184010,2010.00%

Cook County, Illinois Population Growth

Population Data via

Population by Race

Race Population
White2,965,530
Black or African American1,248,948
Some Other Race515,138
Asian357,845
Two or More Races124,008
American Indian and Alaska Native14,296
Native Hawaiian and Other Pacific Islander1,810

Race Data via US Census (2016 ACS 5-Year Survey)

Cook County, Illinois Population Pyramid 2018

0%2%4%6%8% Male Population0%2%4%6%8% Female Population80757065605550454035302520151050

Data via US Census (2016 ACS 5-Year Survey): Table S0101

Cook County, Illinois Median Age

36.1


Total

34.9


Male

37.3


Female

Cook County, Illinois Adults

There are 4,040,915 adults, (679,585 of which are seniors) in Cook County, Illinois.

Cook County, Illinois Age Dependency

55.4

Age Dependency Ratio

20.1

Old Age Dependency Ratio

35.3

Child Dependency Ratio

Cook County, Illinois Sex Ratio

Female

2,692,385

51.50%

Male

2,535,190

48.50%

Cook County, Illinois Households and Families

Cook County, Illinois Renter vs Owner Occupied by Household Type

Cook County, Illinois Household Types

Type Owner Renter
Married75.7%24.3%
All56.6%43.4%
Male50.1%49.9%
Non Family42.9%57.1%
Female42.5%57.5%

56.6%

Rate of Home Ownership

Cook County, Illinois Households by Type

Type Count Average Size Owned
All1,951,6062.6356.6
Married799,4283.4775.7
Non Family766,0011.2642.9
Female288,9173.6342.5
Male97,2603.6150.1

3.43

Average Family Size

2.63

Average Household Size

5.4%

Unmarried (Opposite Sex)

0.5%

Unmarried (Same Sex)

Cook County, Illinois Households

Cook County, Illinois Education

Cook County, Illinois Educational Attainment by Sex (over 25)

Education Attained Count Percentage
Less Than 9th Grade255,9087.22%
9th to 12th Grade247,3446.97%
High School Graduate839,91623.68%
Some College679,43719.16%
Associates Degree230,5656.50%
Bachelors Degree775,88821.88%
Graduate Degree517,63014.59%

Cook County, Illinois Educational Attainment by Race

Name Total High School Bachelors
White1,711,0651,610,393841,923
Black804,506689,897169,193
Hispanic733,847473,975103,664
Other Race291,568172,17029,251
Asian258,687232,746159,309
Multiple Races53,68247,55823,011
Native American9,4797,0841,891
Islander1,2471,064358

The highest rate of high school graduation is among white people with a rate of 94.12%.

The highest rate of bachelors degrees is among white people with a rate of 61.58%.

Cook County, Illinois Earnings by Educational Attainment

Name Average Male Female
Overall$40,190$44,638$35,038
Less Than High School$21,922$25,498$17,731
High School Grad$28,156$31,986$23,404
Some College$34,642$41,030$30,035
Bachelors Degree$53,227$62,209$47,193
Graduate Degree$70,990$85,846$61,244

$40,190

Average Earnings

$44,638

Average Male

$35,038

Average Female

Cook County, Illinois Language

Cook County, Illinois Language by Age

Cook County, Illinois Language

65.07% of Cook County, Illinois residents speak only English, while 34.93% speak other languages. The largest non-English language is Spanish, which is spoken by 20.59% of the population.

Cook County, Illinois Poverty

Cook County, Illinois Poverty by Race

Name Total In Poverty Poverty Rate
Black1,223,180354,69629.00%
Hispanic1,288,356264,82120.55%
White2,201,864178,1278.09%
Other511,269111,45821.80%
Asian351,11746,97213.38%
Multiple121,78121,48117.64%
Native14,1692,80419.79%
Islander1,75724513.94%

16.66%

Overall Poverty Rate

15.27%

Male Poverty Rate

17.97%

Female Poverty Rate

Poverty in Cook County, Illinois

The race most likely to be in poverty in Cook County, Illinois is Black, with 29.00% below the poverty level.

The race least likely to be in poverty in Cook County, Illinois is White, with 8.09% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.92%. Among those working part-time, it was 17.97%, and for those that did not work, the poverty rate was 27.49%.

Cook County, Illinois Poverty Rate by Education

Name Poverty
Less Than High School26.24%
High School17.20%
Some College13.09%
Bachelors or Greater5.68%

Cook County, Illinois Poverty Rate by Employment Status and Sex

Name Poverty
Female Unemployed39.19%
Male Unemployed31.30%
Female Employed7.88%
Male Employed6.17%

Cook County, Illinois Income

Cook County, Illinois Income by Household Type

Name Median Mean
Households$56,902$83,057
Families$70,076$98,587
Married Families$89,954$121,029
Non Families$38,816$56,647

Cook County, Illinois Marital Status

Cook County, Illinois Marital Status

Marriage Rates

41.9%

Overall Marriage Rate

44.4%

Male Marriage Rate

39.6%

Female Marriage Rate

Cook County, Illinois Married by Age and Sex

Cook County, Illinois Marriage

The age group where males are most likely to be married is Over65, while the female age group most likely to be married is 45To54.

Cook County, Illinois Marital Status by Race

Cook County, Illinois Veterans

Cook County, Illinois Veterans by War

181,348

Number of Veterans

169,223

Male Veterans

12,125

Female Veterans

Name Veterans
Vietnam62,066
First Gulf War24,612
Korea21,501
Second Gulf War19,483
World War II14,513

Cook County, Illinois Veterans by Age

Name Veterans
75+51,678
65 to 7447,291
35 to 5437,574
55 to 6430,897
18 to 3413,908

Cook County, Illinois Veterans by Race

Name Veterans % of Total
White114,8914.83%
Black55,1575.86%
Hispanic13,9611.58%
Other4,5141.29%
2 or More3,1544.64%
Asian2,9141.00%
Indian5905.41%
Hawaiian1289.43%

Cook County, Illinois Veterans by Education

8.64%

Veteran Poverty Rate

27.68%

Veteran Disability Rate

Cook County, Illinois Employment Status

Cook County, Illinois Employment by Age

66.1%

Labor Force Participation

59.7%

Employment Rate

9.7%

Unemployment Rate

Cook County, Illinois Employment by Race

Cook County, Illinois Employment by Education

Population of Cities in Cook County, Illinois

City 2010 Census 2016 Estimated Growth Growth Rate
Chicago 2695620270495893380.35%
Elgin 10816911212339543.66%
Cicero8424182992-1249-1.48%
Arlington Heights75089755254360.58%
Evanston74485748954100.55%
Schaumburg 74229744462170.29%
Palatine68551687662150.31%
Skokie6484564270-575-0.89%
Orland Park 566645886221983.88%
Des Plaines5838558141-244-0.42%
Tinley Park 568225683190.02%
Oak Lawn5669056257-433-0.76%
Berwyn5665355748-905-1.60%
Mount Prospect5417754171-6-0.01%
Oak Park5187851774-104-0.20%
Hoffman Estates 5188651738-148-0.29%
Glenview447194747527566.16%
Elmhurst 441364638722515.10%
Buffalo Grove 4144241346-96-0.23%
Bartlett 4120241178-24-0.06%
Streamwood39839401663270.82%
Wheeling 37642383156731.79%
Hanover Park 3795638044880.23%
Park Ridge3747937496170.05%
Calumet City3711636732-384-1.03%
Woodridge 32977334764991.51%
Northbrook33197334212240.67%
Elk Grove Village 3312532931-194-0.59%
Chicago Heights3036730026-341-1.12%
Niles2980629617-189-0.63%
Burbank2892528886-39-0.13%
Lansing2835128086-265-0.93%
Oak Forest2795427792-162-0.58%
Wilmette27058272191610.60%
Melrose Park2541425229-185-0.73%
Harvey2526424947-317-1.25%
Elmwood Park2488324626-257-1.03%
Homer Glen 24232244812491.03%
Rolling Meadows2409524021-74-0.31%
Maywood2410023756-344-1.43%
Blue Island2370123401-300-1.27%
Morton Grove2324523227-18-0.08%
Dolton2307422891-183-0.79%
Roselle 2272122814930.41%
South Holland2201421817-197-0.89%
Park Forest 2197921785-194-0.88%
Evergreen Park1984819637-211-1.06%
Homewood1930719175-132-0.68%
Alsip1927119158-113-0.59%
Bellwood1905519107520.27%
Matteson 1902619097710.37%
Deerfield 18245190007554.14%
Frankfort 177881885710696.01%
Brookfield1897418753-221-1.16%
Bensenville 183521835530.02%
Franklin Park1831118110-201-1.10%
Hinsdale 16822176318094.81%
Palos Hills1748017410-70-0.40%
Lemont 16054168958415.24%
Country Club Hills1654416637930.56%
Westchester1671516563-152-0.91%
Bridgeview1644416248-196-1.19%
Prospect Heights1626016242-18-0.11%
La Grange1555015610600.39%
Midlothian1481514699-116-0.78%
Norridge1457214498-74-0.51%
Chicago Ridge1430414236-68-0.48%
Hickory Hills1404913992-57-0.41%
Forest Park1417113982-189-1.33%
Hazel Crest1400913892-117-0.84%
Richton Park1363313557-76-0.56%
La Grange Park1358013483-97-0.71%
Riverdale1354913398-151-1.11%
Western Springs12948133914433.42%
Justice1292612844-82-0.63%
Markham1253312565320.26%
Lincolnwood1259012527-63-0.50%
Palos Heights1251712438-79-0.63%
Winnetka12198124172191.80%
Northlake1232512391660.54%
Schiller Park1179311692-101-0.86%
Summit11054113142602.35%
River Forest1117211088-84-0.75%
Crestwood1095110891-60-0.55%
Burr Ridge 10569107802112.00%
Worth1078910681-108-1.00%
Lyons1073310621-112-1.04%
Sauk Village 1055310438-115-1.09%
Barrington 1031810312-6-0.06%
River Grove1024610134-112-1.09%
Steger 95679456-111-1.16%
Flossmoor94419362-79-0.84%
Lynwood902691591331.47%
Glenwood89908911-79-0.88%
Glencoe872088941742.00%
Riverside88758748-127-1.43%
Harwood Heights86088549-59-0.69%
Crete 82528171-81-0.98%
Hillside81628081-81-0.99%
Oak Brook 788380701872.37%
Broadview79197823-96-1.21%
Calumet Park78317787-44-0.56%
Inverness740075411411.91%
Orland Hills72107184-26-0.36%
University Park 71197052-67-0.94%
Stickney67866722-64-0.94%
North Riverside66726598-74-1.11%
Countryside58825947651.11%
Posen59825929-53-0.89%
Willow Springs56655648-17-0.30%
Robbins533754601232.30%
Northfield54325456240.44%
Berkeley52075148-59-1.13%
South Barrington456949153467.57%
Olympia Fields49214913-8-0.16%
Stone Park49464883-63-1.27%
Palos Park48394838-1-0.02%
Hometown43494298-51-1.17%
Barrington Hills 4219422120.05%
Burnham42064170-36-0.86%
Rosemont42064169-37-0.88%
South Chicago Heights41434102-41-0.99%
Indian Head Park38163802-14-0.37%
Deer Park 3193373153816.85%
Dixmoor36493561-88-2.41%
East Dundee 2868318231410.95%
Ford Heights27702754-16-0.58%
Kenilworth25082520120.48%
Thornton23862461753.14%
Phoenix19741947-27-1.37%
Merrionette Park19001866-34-1.79%
Hodgkins18971848-49-2.58%
East Hazel Crest15451532-13-0.84%
Forest View698684-14-2.01%
Bedford Park589582-7-1.19%
Golf49349410.20%
McCook22822800.00%
Data Sources
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990