Cook County's estimated 2026 population is 5,262,807 with a growth rate of 0.77% in the past year according to the most recent United States census data. Cook County is the largest county in Illinois. The 2010 population was 5,198,977 and has seen a growth of 1.23% since that time.
Data after 2023 is projected based on recent change
The racial composition of Cook County includes 46.45% White, 22.48% Black or African American, 11.42% other race, 7.76% Asian, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White (46.45%)
Black or African American (22.48%)
Other race (11.42%)
Two or more races (11.1%)
Asian (7.76%)
Native American (0.74%)
Native Hawaiian or Pacific Islander (0.05%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 2,408,676 | 46.45% |
| Black or African American | 1,165,825 | 22.48% |
| Other race | 592,026 | 11.42% |
| Two or more races | 575,626 | 11.1% |
| Asian | 402,519 | 7.76% |
| Native American | 38,507 | 0.74% |
| Native Hawaiian or Pacific Islander | 2,633 | 0.05% |
Married
Widowed
Divorced
Separated
Never Married
Cook County's average per capita income is $55,619. Household income levels show a median of $81,797. The poverty rate stands at 13.34%.
Name | Median | Mean |
|---|---|---|
| Married Families | $129,752 | $174,307 |
| Families | $102,297 | $142,684 |
| Households | $81,797 | $117,699 |
| Non Families | $55,157 | $79,122 |
Average Income
Median Household Income
Poverty Rate
