Tonti township

County:: Marion County
County Seat:: No
Area (mi²):: 35.479
State:: Illinois

Tonti township is located in Marion County, Illinois. Tonti township has a 2025 population of 979. Tonti township is currently declining at a rate of -0.71% annually and its population has decreased by -3.74% since the most recent census, which recorded a population of 1,017 in 2020.

The average household income in Tonti township is $78,912 with a poverty rate of 14.3%.The median age in Tonti township is 43.8 years: 40.5 years for males, and 50.1 years for females.

Demographics

The racial composition of Tonti township includes 88.15% White, 9.79% other race, and smaller percentages for Two or more races and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	1,153	88.15%
Other race	128	9.79%
Two or more races	27	2.06%

Tonti township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Tonti township's average per capita income is $43,583. Household income levels show a median of $75,200. The poverty rate stands at 14.3%.

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	$79,552	-
Families	$79,384	$95,847
Households	$75,200	$78,912
Non Families	-	$41,076

$43,583

Average Income

$75,200

Median Household Income

14.3%

Poverty Rate