Cass County, IL — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
12,826
Male
6,272
48.9%
Female
6,554
51.1%
Median Age
38.1 yrs
Avg Household Size
2.5
Foreign Born
13.1%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher13.5%
High School or Higher42.3%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
4.6%
Disability
0.0%
Non-English Home
9.0%
Married
43.6%
Cass County, IL has a population of 12,826 according to 2023 Census Bureau estimates. The median age is 38.1 years. The largest racial or ethnic group is White at 77.7% of the population. 13.5% of residents hold a bachelor's degree or higher. 13.1% of residents are foreign-born.