Mendon township

County:: Adams County
County Seat:: No
Area (mi²):: 36.689
State:: Illinois

Mendon township is located in Adams County, Illinois. Mendon township has a 2025 population of 1,389. Mendon township is currently declining at a rate of -0.22% annually and its population has decreased by -2.66% since the most recent census, which recorded a population of 1,427 in 2020.

The average household income in Mendon township is $90,254 with a poverty rate of 8.68%. The median age in Mendon township is 34 years: 34.2 years for males, and 32.7 years for females.

Demographics

The racial composition of Mendon township includes 97.36% White, and smaller percentages for Two or more races, other race, Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Other race

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	1,734	97.36%
Two or more races	31	1.74%
Other race	16	0.9%
Black or African American	0	0%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%

Mendon township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Mendon township's average per capita income is $55,199. Household income levels show a median of $73,491. The poverty rate stands at 8.68%.

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	$98,438	-
Families	$93,194	$108,172
Households	$73,491	$90,254
Non Families	$59,500	$55,571

$55,199

Average Income

$73,491

Median Household Income

8.68%

Poverty Rate