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COUNTY · 2000 CENSUS

Cook County

Illinois · 5,376,741 residents · 944.925 sq mi
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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

Total population
5,376,741
+5%since 1990
from 5,105,067 in 1990
1990 – 2025
Population density
5,690 / sq mi
+5%since 1990
from 5,403 / sq mi in 1990
US average: 242
Median age
33.6
+3%since 1990
from 32.8 in 1990
US average: 35.2
Population, 1990 – 2024
5.1M5.2M5.2M5.3M5.4M1990201020202024Cook County
20245.2M
1990201020202024
Section 02

Income & economy

Median household income
$45,922
+7%inflation adjusted, since 1990
from $32,673 in 1990
US average: $42,589
1990 – 2024
Per capita income
$23,227
+48%since 1990
from $15,697 in 1990
US average: $21,522
Poverty rate
13.5%
−0.7 ptssince 1990
from 14.2% in 1990
US average: 12.4%
Section 03

Housing

Median home value
$154,300
+16%inflation adjusted, since 1990
from $100,900 in 1990
US average: $120,530
1990 – 2024
Median gross rent
$648
+3%inflation adjusted, since 1990
from $478 in 1990
US average: $602
Owner-occupied
57.9%
+2.4 ptssince 1990
from 55.5% in 1990
42.1% rent
Afford Score
3.4
+9%since 1990
from 3.1 in 1990
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)
Diversity Score77.6%(3,963,583)
2000
White, non-Hispanic47.6%(2,558,709)
Black25.9%(1,390,448)
Hispanic / Latino19.9%(1,071,740)
Asian4.8%(257,843)
Diversity Score81.5%(4,382,431)
Diversity Score
82
+5%since 1990
from 78 in 1990
1990 – 2024
Section 05

Education

Bachelor's degree or higher
28.0%
+5.3 ptssince 1990
from 22.8% in 1990
US average: 24.4%
High school or higher
77.7%
+4.3 ptssince 1990
from 73.4% in 1990
US average: 80.3%
Graduate degree
10.8%
+2.5 ptssince 1990
from 8.3% in 1990
US average: 8.8%
Section 06

Commute & transportation

Average commute
23.9 min
−12%since 1990
from 27.1 min in 1990
US average: 17.6
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

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+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.

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

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