Richland County Flag

Richland County

State:
Illinois
County Seat:
Olney

Richland County's estimated 2025 population is 15,354 with a growth rate of -0.43% in the past year according to the most recent United States census data. Richland County is the 70th largest county in Illinois. The 2010 population was 16,193 and has seen a growth of -5.18% since that time.

15,354
Total Population
43
Population Density (mi²)
70
Population Rank (State)
-67 -0.43%
Annual Population Growth

Richland County Population

Richland County Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Richland County includes 94.06% White, and smaller percentages for other race, Black or African American, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Other race

Black or African American

Asian

Native American

Native Hawaiian or Pacific Islander

Race
Population
Percentage (of total)
White14,74494.06%
Two or more races5923.78%
Other race2121.35%
Black or African American710.45%
Asian430.27%
Native American80.05%
Native Hawaiian or Pacific Islander50.03%

Richland County Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Richland County's average per capita income is $43,560. Household income levels show a median of $60,404. The poverty rate stands at 11.89%.

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$93,649-
Families$78,589$93,723
Households$60,404$75,635
Non Families$33,975$43,415

$43,560

Average Income

$60,404

Median Household Income

11.89%

Poverty Rate