Ontario township Flag

Ontario township

County:
Knox County
County Seat:
No
Area (mi²):
36.186
State:
Illinois

Ontario township is located in Knox County, Illinois. Ontario township has a 2026 population of 898. Ontario township is currently growing at a rate of 0.11% annually but its population has decreased by -2.07% since the most recent census, which recorded a population of 917 in 2020.

The median household income in Ontario township is $72,375 with a poverty rate of 2.51%. The median age in Ontario township is 34.4 years: 27.7 years for males, and 39.1 years for females. For every 100 females there are 88.9 males.

898
Total Population
25
Density (mi²)
1 0.11%
Growth

Ontario township Population

Ontario township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202689810.11%
202589710.11%
202489610.11%
2023895-2-0.22%
2022897-11-1.21%
2021908-9-0.98%
2020917-3-0.33%
2019882-7-0.79%
2018889-10-1.11%
2017899-6-0.66%
2016905-7-0.77%
2015912-8-0.87%
2014920-5-0.54%
2013925-1-0.11%
2012926-6-0.64%
2011932-11-1.17%
201093700%

Median Age

Overall: 34.4 years
Female: 39.1 years
Male: 27.7 years

Ontario township Adults

There are 679 adults, (168 of whom are seniors) in Ontario township.

Sex Ratio

Female: 549 (52.9%)
Male: 488 (47.1%)

Demographics

The racial composition of Ontario township includes 96.62% White, and smaller percentages for Two or more races, Asian, other race, Black or African American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White1,00296.62%
Two or more races141.35%
Asian121.16%
Other race70.68%
Black or African American20.19%
Race
Population ↓
Percentage (of total)
White70.68%
Race
Population ↓
Percentage (of total)
White99595.95%
Two or more races141.35%
Asian121.16%
Other race70.68%
Black or African American20.19%

Ontario township Marital Status

Economics and Income Statistics

Ontario township 's average per capita income is $45,580. Household income levels show a median of $72,375. The poverty rate stands at 2.51%.

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$105,625-
Families$85,417$102,989
Households$72,375$91,564
Non Families$38,214$49,638

$45,580

Average Income

$72,375

Median Household Income

2.51%

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)