Oneco township Flag

Oneco township

County Seat:
No
Area (mi²):
27.456
State:
Illinois

Oneco township is located in Stephenson County, Illinois. Oneco township has a 2026 population of 1,227. Oneco township is currently declining at a rate of -0.57% annually and its population has decreased by -4.44% since the most recent census, which recorded a population of 1,284 in 2020.

The median household income in Oneco township is $69,630 with a poverty rate of 11.14%. The median age in Oneco township is 41.8 years: 43.8 years for males, and 39.5 years for females. For every 100 females there are 101.9 males.

1.2K
Total Population
45
Density (mi²)
-7 -0.57%
Growth

Oneco township Population

Oneco township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20261,227-7-0.57%
20251,234-7-0.56%
20241,241-7-0.56%
20231,248-10-0.79%
20221,258-14-1.1%
20211,272-12-0.93%
20201,284-5-0.39%
20191,242-11-0.88%
20181,253-5-0.4%
20171,258-15-1.18%
20161,273-3-0.24%
20151,276-19-1.47%
20141,295-10-0.77%
20131,305-7-0.53%
20121,312-11-0.83%
20111,323-8-0.6%
20101,330-3-0.23%

Median Age

Overall: 41.8 years
Female: 39.5 years
Male: 43.8 years

Oneco township Adults

There are 983 adults, (243 of whom are seniors) in Oneco township.

Sex Ratio

Female: 687 (49.5%)
Male: 700 (50.5%)

Demographics

The racial composition of Oneco township includes 89.83% White, and smaller percentages for other race, Black or African American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White1,24689.83%
Two or more races1279.16%
Other race120.87%
Black or African American20.14%
Race
Population ↓
Percentage (of total)
Two or more races412.96%
White120.87%
Other race60.43%
Race
Population ↓
Percentage (of total)
White1,23488.97%
Two or more races866.2%
Other race60.43%
Black or African American20.14%

Oneco township Marital Status

Economics and Income Statistics

Oneco township 's average per capita income is $50,053. Household income levels show a median of $69,630. The poverty rate stands at 11.14%.

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$105,350-
Families$80,804$90,517
Households$69,630$79,126
Non Families$38,060$42,095

$50,053

Average Income

$69,630

Median Household Income

11.14%

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)