Mercer township

County:: Mercer County
County Seat:: No
Area (mi²):: 35.424
State:: Illinois

Mercer township is located in Mercer County, Illinois. Mercer township has a 2025 population of 3,870. Mercer township is currently declining at a rate of -0.44% annually and its population has decreased by -2.17% since the most recent census, which recorded a population of 3,956 in 2020.

The average household income in Mercer township is $79,472 with a poverty rate of 10.19%.The median age in Mercer township is 42.3 years: 39 years for males, and 42.7 years for females.

Demographics

The racial composition of Mercer township includes 95.77% White, and smaller percentages for Two or more races, Black or African American, other race, Native American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	3,779	95.77%
Two or more races	80	2.03%
Black or African American	74	1.88%
Other race	12	0.3%
Native American	1	0.03%

Mercer township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Mercer township's average per capita income is $45,406. Household income levels show a median of $62,462. The poverty rate stands at 10.19%.

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	$96,797	-
Families	$93,083	$98,287
Households	$62,462	$79,472
Non Families	$34,219	$42,141

$45,406

Average Income

$62,462

Median Household Income

10.19%

Poverty Rate