Lee County, IL — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
34,058
Male
17,980
52.8%
Female
16,078
47.2%
Median Age
43.0 yrs
Avg Household Size
2.3
Foreign Born
2.3%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher14.2%
High School or Higher41.6%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
5.5%
Disability
0.0%
Non-English Home
7.0%
Married
40.5%
Lee County, IL has a population of 34,058 according to 2023 Census Bureau estimates. The median age is 43.0 years. The largest racial or ethnic group is White at 86.8% of the population. 14.2% of residents hold a bachelor's degree or higher. 2.3% of residents are foreign-born.