Warren County, IL — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
16,576
Male
8,311
50.1%
Female
8,265
49.9%
Median Age
38.7 yrs
Avg Household Size
2.3
Foreign Born
6.2%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher14.4%
High School or Higher36.9%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
5.0%
Disability
0.0%
Non-English Home
8.8%
Married
41.4%
Warren County, IL has a population of 16,576 according to 2023 Census Bureau estimates. The median age is 38.7 years. The largest racial or ethnic group is White at 84.9% of the population. 14.4% of residents hold a bachelor's degree or higher. 6.2% of residents are foreign-born.