CensusEasy
COUNTY · 1990 CENSUS

Cook County

Illinois · 5,105,067 residents · 944.925 sq mi
Time machine
COMPARE TO
Part of the Chicago metro area
Compare
The short version

Cook County has roughly average household income, with a median household income of $32,673. Population has declined 5% since 2000. Median home value is $100,900.

At a glance
Wealthier
above the US median
US median: $30,130
Mid-age
median age 32.8
US median: 33.0
More educated
23% hold a bachelor's degree
US average: 20%
More affordable
home values down 14%, inflation adjusted
US median home: $93,722
Section 01

Population & growth

Total population
5,105,067
−5%vs 2000
vs 5,376,741 in 2000
1990 – 2025
Median age
32.8
−3%vs 2000
vs 33.6 in 2000
US average: 33.0
Population, 1990 – 2024
5.1M5.2M5.2M5.3M5.4M1990201020202024Cook County
20245.2M
1990201020202024
Age distribution, 1990
Under 57.4%(378,237)
US avg: 7.3%
5 to 97%(356,106)
US avg: 7.3%
10 to 146.7%(341,009)
US avg: 6.9%
15 to 196.8%(348,296)
US avg: 7.1%
20 to 247.6%(389,424)
US avg: 7.5%
25 to 3418.6%(950,051)
US avg: 17.5%
35 to 4414.5%(742,308)
US avg: 15.1%
45 to 5410.3%(523,733)
US avg: 10.2%
55 to 648.7%(444,077)
US avg: 8.5%
65 to 747.3%(374,588)
US avg: 7.3%
75 to 843.9%(201,198)
US avg: 4%
85 and over1.1%(56,040)
US avg: 1.2%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$32,673
−6%inflation adjusted, since 2000
vs $45,922 in 2000
US average: $30,130
1990 – 2024
Per capita income
$15,697
−32%vs 2000
vs $23,227 in 2000
US average: $14,340
Poverty rate
14.2%
+0.7 ptsvs 2000
vs 13.5% in 2000
US average: 13.2%
Section 03

Housing

Median home value
$100,900
−14%inflation adjusted, since 2000
vs $154,300 in 2000
US average: $93,722
1990 – 2024
Median gross rent
$478
−3%inflation adjusted, since 2000
vs $648 in 2000
US average: $450
Owner-occupied
55.5%
−2.4 ptsvs 2000
vs 57.9% in 2000
44.5% rent
RELATED:See current rent listings in Cook County on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic47.6%(2,558,709)
Black25.9%(1,390,448)
Hispanic / Latino19.9%(1,071,740)
Asian4.8%(257,843)
Other0%
1990
White, non-Hispanic62.8%(3,208,115)
Black25.8%(1,314,859)
Hispanic / Latino13.3%(677,949)
Asian3.7%(188,447)
Other7.7%(393,646)

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)
Okinawan0%(62)
Mien0%(19)
Pacific Islander origin
Samoan0%(743)
Chamorro0%(445)
Fijian0%(236)
Tongan0%(199)
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)
Somali0%(1,002)
Kenyan0%(711)
Barbadian0%(585)
Guyanese0%(440)
RANKED:Largest Mexican population · Largest German population · Largest Irish population · Largest Polish population · Largest Italian population
Section 05

Education

Bachelor's degree or higher
22.8%
−5.3 ptsvs 2000
vs 28.0% in 2000
US average: 20.3%
High school or higher
73.4%
−4.3 ptsvs 2000
vs 77.7% in 2000
US average: 75.2%
Graduate degree
8.3%
−2.5 ptsvs 2000
vs 10.8% in 2000
US average: 7.1%
Section 06

Commute & transportation

Average commute
27.1 min
+14%vs 2000
vs 23.9 min in 2000
US average: 21.9
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status (2024)
Men 15+
Never married44.4%(919,738)
Married46.1%(955,528)
Widowed2.5%(51,378)
Divorced7%(145,157)
Women 15+
Never married40.5%(897,366)
Married41.8%(925,110)
Widowed7.9%(174,950)
Divorced9.8%(216,729)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Drill deeper

Places similar to Cook County

Harris County
Pop 5,045,026
Maricopa County
Pop 4,689,558
Kings County
Pop 2,653,963
Los Angeles County
Pop 9,694,934
Places similar to Cook County
Head to head

Compare Cook County to nearby counties

COOK COUNTY VS
Lake County
Income$110,416+238%
Home value$345,700+243%
Population719,339−86%
SEE FULL COMPARISON →
COOK COUNTY VS
DuPage County
Income$112,096+243%
Home value$391,400+288%
Population934,298−82%
SEE FULL COMPARISON →
COOK COUNTY VS
Lake County
Income$71,493+119%
Home value$230,600+129%
Population504,612−90%
SEE FULL COMPARISON →
COOK COUNTY VS
Will County
Income$109,984+237%
Home value$319,600+217%
Population712,253−86%
SEE FULL COMPARISON →
Frequently asked

How many people live in Cook County, Illinois?

Cook County, Illinois has about 5,105,067 residents according to the 1990 Census.

What is the median household income in Cook County, Illinois?

The typical household in Cook County, Illinois earns about $32,673 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 $100,900, and the typical rent is about $478 a month.

How educated are people in Cook County, Illinois?

About 22.8% 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 14.2% of people in Cook County, Illinois live below the federal poverty line.

Keep going

Explore from here

1332 census tracts (top 20 by population)
Census Tract 818Census Tract 3301.02Census Tract 8390Census Tract 814.03Census Tract 8331Census Tract 3201.01Census Tract 208.02Census Tract 8435Census Tract 2306Census Tract 8060.04Census Tract 3301.03Census Tract 8073Census Tract 8391Census Tract 8134Census Tract 8237.03Census Tract 810Census Tract 8043.05Census Tract 8142Census Tract 207.02Census Tract 8051.11
167 ZIP codes (top 30 by population)
ZIP 60629ZIP 60618ZIP 60632ZIP 60647ZIP 60639ZIP 60804ZIP 60623ZIP 60608ZIP 60625ZIP 60617ZIP 60634ZIP 60657ZIP 60614ZIP 60641ZIP 60640ZIP 60620ZIP 60402ZIP 60651ZIP 60609ZIP 60016ZIP 60628ZIP 60619ZIP 60638ZIP 60453ZIP 60056ZIP 60630ZIP 60622ZIP 60616ZIP 60637ZIP 60613
Up the hierarchy
All counties in Illinois
Rankings
Highest income countiesLowest poverty counties

DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →