Cook County, Illinois

Interactive maps and statistics for Cook County, Illinois: income, age, education, housing, health and more, set beside Illinois and the United States.

Cook County, Illinois is among the highest in the country for total population (2nd of 3,222 counties), and among the highest in the country for population per square mile (19th of 3,222 counties).

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Key figures

Statistic	Cook County, Illinois	Illinois	United States	Rank
Total Population	5,182,090	12,694,798	334,922,499	2nd of 3,222
Median Household Income	$83,498	$83,390	$80,734	467th of 3,221
Median Age	38.0	39.0	38.9	2577th of 3,222
Bachelor's Degree or Higher	42.7%	37.8%	35.7%	206th of 3,222
Median Home Value	$324,500	$263,300	$332,700	511th of 3,217
Median Gross Rent	$1,435	$1,274	$1,413	284th of 3,215
Poverty Rate	13.5%	11.8%	12.5%	1571st of 3,222
Unemployment Rate	7.0%	5.8%	5.2%	428th of 3,222
Population per Square Mile	5,484.2	228.7	n/a	19th of 3,222
Foreign Born	21.7%	14.7%	14.1%	101st of 3,222
Life Expectancy	77.9	n/a	n/a	795th of 3,062
Homeownership Rate	57.7%	67.1%	65.2%	3058th of 3,222
Average Commute Time	31.5	27.8	26.4	345th of 3,221
Worked from Home	18.9%	15.9%	15.1%	177th of 3,222
Uninsured	10.1%	n/a	n/a	1631st of 3,134
Married-Couple Households	38.9%	45.3%	46.9%	2916th of 3,222
Broadband Access	87.9%	n/a	n/a	704th of 3,135

Rank is among all US counties with published data, counting down from the highest value. Figures come from the American Community Survey, CDC, BLS, BEA and other federal sources. Open the map for 1,147 statistics and the year and margin of error behind each one.

Race and ethnicity in Cook County, Illinois

Statistic	Cook County, Illinois	Illinois	United States
White (non-Hispanic)	40.1%	58.1%	57.4%
Hispanic or Latino (any race)	26.8%	18.8%	19.3%
Black (non-Hispanic)	21.8%	13.3%	11.9%
Asian (non-Hispanic)	7.9%	5.9%	5.9%
Two or More Races (non-Hispanic)	3.0%	3.4%	4.3%
American Indian & Alaska Native (non-Hispanic)	0.1%	0.1%	0.5%
Native Hawaiian & Pacific Islander (non-Hispanic)	0.0%	0.0%	0.2%
Some Other Race (non-Hispanic)	0.4%	0.4%	0.6%
Diversity Index	71.3	60.5	61.4

Age in Cook County, Illinois

Statistic	Cook County, Illinois	Illinois	United States
Median Age	38.0	39.0	38.9
Under 18 %	21.1%	21.8%	22.0%
Age 18-24 %	8.7%	9.1%	9.1%
Age 25-34 %	15.8%	13.6%	13.7%
Age 35-44 %	14.0%	13.3%	13.2%
Age 45-64 %	24.5%	25.2%	24.8%
Age 65 and Over %	16.0%	17.0%	17.2%

Households and families in Cook County, Illinois

Statistic	Cook County, Illinois	Illinois	United States
Households	2,100,230	5,036,449	129,227,496
Average Household Size	2.4	2.5	2.5
Family Households	57.6%	62.2%	64.2%
Households with Children	26.7%	28.6%	29.5%
Single-Parent Families	18.7%	16.8%	17.3%
People Living Alone	34.7%	31.2%	28.7%
Never Married	42.4%	36.4%	34.4%

Income and poverty in Cook County, Illinois

Statistic	Cook County, Illinois	Illinois	United States
Per Capita Income	$49,329	$46,406	$44,673
Households Under $25,000	15.8%	14.6%	14.6%
Households $50,000 to $74,999	14.0%	14.8%	15.5%
Households $100,000 to $149,999	17.2%	18.0%	17.5%
Households $200,000 or More	15.2%	13.8%	13.4%
Poverty Rate	13.5%	11.8%	12.5%
Below 200% of Poverty	28.6%	26.1%	28.2%
SNAP Households	15.7%	13.8%	n/a

Housing in Cook County, Illinois

Statistic	Cook County, Illinois	Illinois	United States
Housing Units	2,276,493	5,457,452	143,775,355
Single-Family Detached Homes	39.6%	58.2%	61.3%
Buildings with 5+ Units	34.8%	21.8%	19.1%
Vacancy Rate	7.7%	7.7%	10.1%
Median Year Structure Built	1,961.0	1,971.0	1,980.0
Renter-Occupied	42.3%	32.9%	34.8%
Rent as % of Household Income	29.5%	29.1%	30.6%
Median Property Tax	$6,191	$5,298	n/a

Education in Cook County, Illinois

Statistic	Cook County, Illinois	Illinois	United States
Less than High School	11.4%	9.5%	10.4%
High School Graduate	22.0%	25.1%	26.0%
Some College or Associate Degree	23.8%	27.5%	27.9%
Bachelor's Degree	24.7%	22.6%	21.6%
Graduate or Professional Degree	18.0%	15.3%	14.1%

Work and commuting in Cook County, Illinois

Statistic	Cook County, Illinois	Illinois	United States
Labour Force Participation	66.2%	65.0%	63.5%
Drove Alone to Work	54.8%	65.9%	68.8%
Public Transit	11.8%	5.8%	3.2%
Walked to Work	4.0%	2.8%	2.4%
Commutes Under 15 Minutes	16.4%	24.9%	26.0%
Commutes Over an Hour	12.5%	9.8%	8.6%
Households Without a Car	18.0%	11.0%	n/a

Origins and language in Cook County, Illinois

Statistic	Cook County, Illinois	Illinois	United States
Born in State of Residence	60.7%	66.5%	57.3%
Naturalised Citizens	11.4%	7.7%	7.4%
Non-Citizens	10.3%	7.0%	6.8%
Speaks Only English at Home	64.2%	76.0%	77.7%
Speaks Spanish at Home	21.1%	14.0%	13.6%
Limited English Proficiency	27.9%	18.9%	16.7%

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