Onarga township Flag

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 2026 population of 1,577. Onarga township is currently growing at a rate of 0.19% annually but its population has decreased by -2.89% since the most recent census, which recorded a population of 1,624 in 2020.

The median household income in Onarga township is $72,083 with a poverty rate of 10.07%. The median age in Onarga township is 42.2 years: 42.2 years for males, and 42.2 years for females. For every 100 females there are 108.8 males.

1.6K
Total Population
32
Density (mi²)
3 0.19%
Growth

Onarga township Population

Onarga township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20261,57730.19%
20251,57430.19%
20241,57130.19%
20231,568-19-1.2%
20221,587-22-1.37%
20211,609-15-0.92%
20201,624-6-0.37%
20191,544-20-1.28%
20181,564-14-0.89%
20171,578-21-1.31%
20161,599-21-1.3%
20151,620-11-0.67%
20141,631-5-0.31%
20131,636-14-0.85%
20121,650-15-0.9%
20111,665-18-1.07%
20101,682-1-0.06%

Median Age

Overall: 42.2 years
Female: 42.2 years
Male: 42.2 years

Onarga township Adults

There are 1,242 adults, (281 of whom are seniors) in Onarga township.

Sex Ratio

Female: 762 (47.9%)
Male: 829 (52.1%)

Demographics

The racial composition of Onarga township includes 50.72% White, 25.02% other race, 5.97% Native American, and smaller percentages for Black or African American, Asian and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White80750.72%
Other race39825.02%
Two or more races26616.72%
Native American955.97%
Black or African American221.38%
Asian30.19%
Race
Population ↓
Percentage (of total)
Other race39825.02%
Two or more races25916.28%
White1137.1%
Native American925.78%
Race
Population ↓
Percentage (of total)
White69443.62%
Black or African American221.38%
Two or more races70.44%
Native American30.19%
Asian30.19%

Onarga township Marital Status

Economics and Income Statistics

Onarga township 's average per capita income is $47,898. Household income levels show a median of $72,083. The poverty rate stands at 10.07%.

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$94,063$101,190
Married Families$89,063-
Households$72,083$84,436
Non Families$26,875$43,465

$47,898

Average Income

$72,083

Median Household Income

10.07%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)