Kilbourne township Flag

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.

443
Total Population
11
Density (mi²)
-6 -1.34%
Growth

Kilbourne township Population

Kilbourne township Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Kilbourne township includes 99.51% White, and smaller percentages for Two or more races, 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)
White60699.51%
Two or more races30.49%
Black or African American00%
Native American00%
Asian00%
Native Hawaiian or Pacific Islander00%
Other race00%

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

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)