COUNTY · 2000 CENSUS
Cook County
Illinois · 5,376,741 residents · 944.925 sq mi
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Part of the Chicago metro area
The short version
Cook County has roughly average household income, with a median household income of $45,922. Population has held roughly steady since 1990. Median home value has risen by half since 1990, reaching $154,300.
At a glance
Wealthier
above the US median
US median: $42,589
Younger
median age 33.6
US median: 35.2
More educated
28% hold a bachelor's degree
US average: 24%
Stable housing
home values roughly flat, inflation adjusted
US median home: $120,530
Section 01
Population & growth
Population, 1990 – 2024
20245.2M
Age distribution, 2000
Under 57.2%(388,201)
5 to 97.6%(406,508)
10 to 147.1%(380,589)
15 to 196.8%(368,175)
20 to 247.2%(385,321)
25 to 3416.2%(872,824)
35 to 4415.5%(832,847)
45 to 5412.5%(673,290)
55 to 648.2%(438,721)
65 to 746.1%(328,628)
75 to 844.2%(225,117)
85 and over1.4%(76,520)
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy
$45,922
+7%inflation adjusted, since 1990
from $32,673 in 1990
US average: $42,589
1990 – 2024
Section 03
Housing
$154,300
+16%inflation adjusted, since 1990
from $100,900 in 1990
US average: $120,530
1990 – 2024
RELATED:See current rent listings in Cook County on RentDataNow
Section 04
Race & ethnicity
1990
White, non-Hispanic62.8%(3,208,115)
Black25.8%(1,314,859)
Hispanic / Latino13.3%(677,949)
Asian3.7%(188,447)
2000
White, non-Hispanic47.6%(2,558,709)
Black25.9%(1,390,448)
Hispanic / Latino19.9%(1,071,740)
Asian4.8%(257,843)
No data for the years selected.
Section 04 · Origins
Detailed origins & ancestry
Detailed origin tables are available for 2024; showing 2024 data.
Hispanic origin
Mexican20.1%(1,043,055)
Puerto Rican2.7%(137,451)
South American1.7%(87,744)
Central American1.1%(58,473)
Ecuadorian0.6%(29,227)
Guatemalan0.5%(28,462)
Colombian0.4%(21,908)
Cuban0.3%(18,030)
Venezuelan0.3%(15,257)
Salvadoran0.2%(11,546)
Honduran0.2%(11,193)
Peruvian0.2%(9,835)
+ 10 more hispanic origin groups with data
Spaniard0.2%(9,368)
Dominican0.1%(5,727)
Argentine0.1%(4,861)
Chilean0.1%(3,401)
Nicaraguan0.1%(3,010)
Panamanian0%(2,081)
Costa Rican0%(1,740)
Bolivian0%(1,648)
Uruguayan0%(597)
Paraguayan0%(566)
Asian origin
Asian Indian2.4%(122,654)
Chinese1.6%(82,491)
Filipino1.4%(74,684)
Korean0.7%(36,892)
Pakistani0.4%(22,104)
Vietnamese0.3%(15,834)
Japanese0.2%(11,261)
Thai0.1%(5,011)
Mongolian0.1%(4,367)
Taiwanese0.1%(4,127)
Burmese0.1%(2,747)
Bangladeshi0%(2,253)
+ 12 more asian origin groups with data
Nepalese0%(1,975)
Cambodian0%(1,874)
Kazakh0%(1,508)
Laotian0%(1,120)
Indonesian0%(876)
Sri Lankan0%(606)
Malaysian0%(589)
Uzbek0%(520)
Hmong0%(147)
Singaporean0%(140)
Okinawan0%(62)
Mien0%(19)
Pacific Islander origin
Native Hawaiian0%(2,222)
Samoan0%(743)
Chamorro0%(445)
Fijian0%(236)
Tongan0%(199)
Marshallese0%(94)
Guamanian0%(28)
Ancestry
German9%(464,737)
Irish8.4%(432,999)
Polish7%(361,909)
Italian4.8%(250,439)
English3.6%(186,319)
American2.2%(116,337)
Subsaharan African1.6%(80,388)
Arab1.3%(68,776)
Swedish1.2%(59,653)
Russian1%(51,555)
French0.9%(47,693)
Greek0.9%(44,811)
+ 51 more ancestry groups with data
Scottish0.7%(38,717)
Ukrainian0.7%(37,810)
Dutch0.7%(34,682)
Norwegian0.7%(34,204)
Czech0.6%(31,971)
Lithuanian0.6%(31,748)
West Indian0.5%(25,212)
Nigerian0.5%(23,799)
Romanian0.4%(19,425)
Palestinian0.3%(18,100)
Hungarian0.3%(15,864)
Croatian0.3%(15,378)
Serbian0.3%(14,877)
Austrian0.3%(13,625)
Scotch-Irish0.3%(13,501)
British0.2%(11,748)
Bulgarian0.2%(11,680)
Danish0.2%(11,089)
Slovak0.2%(11,063)
Welsh0.2%(10,585)
Jamaican0.2%(9,793)
French Canadian0.2%(8,200)
Iranian0.1%(7,763)
Lebanese0.1%(7,544)
Swiss0.1%(7,451)
Jordanian0.1%(7,276)
Haitian0.1%(7,125)
Ghanaian0.1%(6,065)
Finnish0.1%(5,666)
Ethiopian0.1%(5,578)
Iraqi0.1%(5,445)
Turkish0.1%(5,353)
Belgian0.1%(5,027)
Armenian0.1%(4,976)
Canadian0.1%(4,893)
Moroccan0.1%(4,873)
Portuguese0.1%(4,367)
Brazilian0.1%(4,111)
Macedonian0.1%(4,099)
Syrian0.1%(3,733)
Slovene0.1%(3,554)
Egyptian0.1%(3,521)
Latvian0%(2,414)
Australian0%(2,221)
Israeli0%(2,023)
Trinidadian & Tobagonian0%(1,104)
Somali0%(1,002)
Kenyan0%(711)
Barbadian0%(585)
Guyanese0%(440)
Cape Verdean0%(250)
Section 05
Education
High school or higher
77.7%
+4.3 ptssince 1990
from 73.4% in 1990
US average: 80.3%
Section 06
Commute & transportation
Section 07
Work & employment
No data for the years selected.
Section 08
People & community
No data for the years selected.
Marital status
Men 15+
Never married37.9%(758,000)
Married52.2%(1,044,526)
Widowed2.8%(55,184)
Divorced7.1%(142,986)
Women 15+
Never married31.6%(695,647)
Married47.4%(1,043,936)
Widowed11.2%(246,214)
Divorced9.8%(216,189)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
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Compare Cook County to nearby counties
COOK COUNTY VS
Lake County
Income$110,416+140%
Home value$345,700+124%
Population719,339−86%
SEE FULL COMPARISON →
COOK COUNTY VS
DuPage County
Income$112,096+144%
Home value$391,400+154%
Population934,298−82%
SEE FULL COMPARISON →
COOK COUNTY VS
Lake County
Income$71,493+56%
Home value$230,600+49%
Population504,612−90%
SEE FULL COMPARISON →
COOK COUNTY VS
Will County
Income$109,984+140%
Home value$319,600+107%
Population712,253−86%
SEE FULL COMPARISON →
Frequently asked
How many people live in Cook County, Illinois?
Cook County, Illinois has about 5,376,741 residents according to the 2000 Census.
What is the median household income in Cook County, Illinois?
The typical household in Cook County, Illinois earns about $45,922 a year. Half of households make more than that, and half make less.
Is Cook County, Illinois expensive?
In Cook County, Illinois, the median home is worth about $154,300, and the typical rent is about $648 a month.
How educated are people in Cook County, Illinois?
About 28.0% of adults age 25 and over in Cook County, Illinois hold a bachelor's degree or higher.
What is the poverty rate in Cook County, Illinois?
About 13.5% of people in Cook County, Illinois live below the federal poverty line.
Has Cook County, Illinois grown since 1990?
Yes, Cook County, Illinois has grown since 1990. The population has added about 271,674 residents, a change of about 5 percent over that period.
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1332 census tracts (top 20 by population)
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All counties in IllinoisDATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024