Onarga township

County:: Iroquois County
County Seat:: No
Area (mi²):: 48.53
State:: Illinois

Onarga township is located in Iroquois County, Illinois. Onarga township has a 2025 population of 1,523. Onarga township is currently declining at a rate of -1.17% annually and its population has decreased by -5.4% since the most recent census, which recorded a population of 1,610 in 2020.

The average household income in Onarga township is $83,294 with a poverty rate of 9.97%.The median age in Onarga township is 42.1 years: 41 years for males, and 42.5 years for females.

Demographics

The racial composition of Onarga township includes 56.93% White, 24.57% other race, 4.32% Native American, and smaller percentages for Black or African American, Asian and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	936	56.93%
Other race	404	24.57%
Two or more races	213	12.96%
Native American	71	4.32%
Black or African American	17	1.03%
Asian	3	0.18%

Onarga township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Onarga township's average per capita income is $42,667. Household income levels show a median of $64,727. The poverty rate stands at 9.97%.

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
Families	$82,188	$101,913
Married Families	$80,938	-
Households	$64,727	$83,294
Non Families	$29,167	$40,181

$42,667

Average Income

$64,727

Median Household Income

9.97%

Poverty Rate