Greene County, IL — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
11,837
Male
5,951
50.3%
Female
5,886
49.7%
Median Age
43.1 yrs
Avg Household Size
2.6
Foreign Born
0.2%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher11.7%
High School or Higher43.1%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
6.7%
Disability
0.0%
Non-English Home
6.8%
Married
41.1%
Greene County, IL has a population of 11,837 according to 2023 Census Bureau estimates. The median age is 43.1 years. The largest racial or ethnic group is White at 96.1% of the population. 11.7% of residents hold a bachelor's degree or higher. 0.2% of residents are foreign-born.