Kilbourne township

County:: Mason County
County Seat:: No
Area (mi²):: 40.092
State:: Illinois

Kilbourne township is located in Mason County, Illinois. Kilbourne township has a 2025 population of 443. Kilbourne township is currently declining at a rate of -1.34% annually and its population has decreased by -6.54% since the most recent census, which recorded a population of 474 in 2020.

The average household income in Kilbourne township is $78,738 with a poverty rate of 16.91%.The median age in Kilbourne township is 34.7 years: 43.1 years for males, and 30.5 years for females.

Demographics

The racial composition of Kilbourne township includes 99.51% White, and smaller percentages for Two or more races and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	606	99.51%
Two or more races	3	0.49%

Kilbourne township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Kilbourne township's average per capita income is $29,868. Household income levels show a median of $50,781. The poverty rate stands at 16.91%.

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	$70,391	-
Families	$56,250	$100,251
Households	$50,781	$78,738
Non Families	$19,766	$29,115

$29,868

Average Income

$50,781

Median Household Income

16.91%

Poverty Rate