Cass County Flag

Cass County

State:
Illinois
County Seat:
Virginia

Cass County's estimated 2025 population is 12,512 with a growth rate of -0.33% in the past year according to the most recent United States census data. Cass County is the 81st largest county in Illinois. The 2010 population was 13,632 and has seen a growth of -8.22% since that time.

12,512
Total Population
33
Population Density (mi²)
81
Population Rank (State)
-42 -0.33%
Annual Population Growth

Cass County Population

Cass County Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Cass County includes 77.69% White, 8.69% other race, 3.81% Black or African American, and smaller percentages for Asian, Native Hawaiian or Pacific Islander, Native American and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White9,96577.69%
Other race1,1158.69%
Two or more races1,0207.95%
Black or African American4893.81%
Asian1020.8%
Native Hawaiian or Pacific Islander750.58%
Native American600.47%

Cass County Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Cass County's average per capita income is $44,965. Household income levels show a median of $64,907. The poverty rate stands at 10.9%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$84,177-
Families$76,426$91,797
Households$64,907$78,834
Non Families$38,434$49,980

$44,965

Average Income

$64,907

Median Household Income

10.9%

Poverty Rate