Caseyville township Flag

Caseyville township

County Seat:
No
Area (mi²):
34.892
State:
Illinois

Caseyville township is located in St. Clair County, Illinois. Caseyville township has a 2026 population of 34,505. Caseyville township is currently declining at a rate of -0.28% annually and its population has decreased by -2.74% since the most recent census, which recorded a population of 35,478 in 2020.

The median household income in Caseyville township is $87,204 with a poverty rate of 7.42%. The median age in Caseyville township is 39.2 years: 37.5 years for males, and 40.7 years for females. For every 100 females there are 103.2 males.

34.5K
Total Population
989
Density (mi²)
-97 -0.28%
Growth

Caseyville township Population

Caseyville township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202634,505-97-0.28%
202534,602-97-0.28%
202434,699-97-0.28%
202334,796-192-0.55%
202234,988-249-0.71%
202135,237-241-0.68%
202035,478-69-0.19%
201930,962-206-0.66%
201831,168-87-0.28%
201731,255-23-0.07%
201631,278-148-0.47%
201531,426-134-0.42%
201431,560-96-0.3%
201331,656-190-0.6%
201231,846-186-0.58%
201132,032360.11%
201032,020740.23%

Median Age

Overall: 39.2 years
Female: 40.7 years
Male: 37.5 years

Caseyville township Adults

There are 26,937 adults, (5,594 of whom are seniors) in Caseyville township.

Sex Ratio

Female: 17,239 (49.2%)
Male: 17,793 (50.8%)

Demographics

The racial composition of Caseyville township includes 62.57% White, 22.4% Black or African American, 3.22% other race, and smaller percentages for Asian, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White21,92162.57%
Black or African American7,84822.4%
Two or more races3,2389.24%
Other race1,1273.22%
Asian8892.54%
Native Hawaiian or Pacific Islander90.03%
Race
Population ↓
Percentage (of total)
Other race8882.53%
Two or more races5981.71%
White4551.3%
Black or African American200.06%
Race
Population ↓
Percentage (of total)
White21,46661.28%
Black or African American7,82822.35%
Two or more races2,6407.54%
Asian8892.54%
Other race2390.68%
Native Hawaiian or Pacific Islander90.03%

Caseyville township Marital Status

Economics and Income Statistics

Caseyville township 's average per capita income is $55,604. Household income levels show a median of $87,204. The poverty rate stands at 7.42%.

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$127,446-
Families$111,071$136,517
Households$87,204$113,646
Non Families$52,078$67,425

$55,604

Average Income

$87,204

Median Household Income

7.42%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)