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, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Other race

Two or more races

Native American

Black or African American

Asian

Native Hawaiian or Pacific Islander

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%
Native Hawaiian or Pacific Islander	0	0%

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