Casner township

County:: Jefferson County
County Seat:: No
Area (mi²):: 35.953
State:: Illinois

Casner township is located in Jefferson County, Illinois. Casner township has a 2025 population of 1,140. Casner township is currently declining at a rate of -0.35% annually and its population has decreased by -2.31% since the most recent census, which recorded a population of 1,167 in 2020.

The average household income in Casner township is $73,325 with a poverty rate of 11.9%. The median age in Casner township is 48.1 years: 53.4 years for males, and 43.6 years for females.

Demographics

The racial composition of Casner township includes 89.55% White, and smaller percentages for Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	874	89.55%
Two or more races	97	9.94%
Black or African American	5	0.51%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Casner township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Casner township's average per capita income is $48,385. Household income levels show a median of $64,537. The poverty rate stands at 11.9%.

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	$81,979	-
Families	$81,042	$87,967
Households	$64,537	$73,325
Non Families	$43,750	$40,304

$48,385

Average Income

$64,537

Median Household Income

11.9%

Poverty Rate