Clay County, IL — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
13,173
Male
6,596
50.1%
Female
6,577
49.9%
Median Age
41.5 yrs
Avg Household Size
2.4
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 Higher10.9%
High School or Higher36.5%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
6.2%
Disability
0.0%
Non-English Home
8.6%
Married
41.8%
Clay County, IL has a population of 13,173 according to 2023 Census Bureau estimates. The median age is 41.5 years. The largest racial or ethnic group is White at 95.4% of the population. 10.9% of residents hold a bachelor's degree or higher. 0.2% of residents are foreign-born.