Douglas County, IL — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
19,686
Male
9,733
49.4%
Female
9,953
50.6%
Median Age
38.9 yrs
Avg Household Size
2.5
Foreign Born
3.7%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher13.6%
High School or Higher35.8%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
5.0%
Disability
0.0%
Non-English Home
9.4%
Married
47.3%
Douglas County, IL has a population of 19,686 according to 2023 Census Bureau estimates. The median age is 38.9 years. The largest racial or ethnic group is White at 90.5% of the population. 13.6% of residents hold a bachelor's degree or higher. 3.7% of residents are foreign-born.