Cook County, IL — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
5,185,812
Male
2,530,756
48.8%
Female
2,655,056
51.2%
Median Age
37.8 yrs
Avg Household Size
2.5
Foreign Born
21.4%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher29.4%
High School or Higher44.9%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
2.6%
Disability
0.0%
Non-English Home
8.2%
Married
36.3%
Cook County, IL has a population of 5,185,812 according to 2023 Census Bureau estimates. The median age is 37.8 years. The largest racial or ethnic group is White at 46.5% of the population. 29.4% of residents hold a bachelor's degree or higher. 21.4% of residents are foreign-born.