Osco township Flag

Osco township

County:
Henry County
County Seat:
No
Area (mi²):
36.484
State:
Illinois

Osco township is located in Henry County, Illinois. Osco township has a 2026 population of 411. Osco township is currently declining at a rate of -0.48% annually and its population has decreased by -3.52% since the most recent census, which recorded a population of 426 in 2020.

The median household income in Osco township is $110,119 with a poverty rate of 2.59%. The median age in Osco township is 61.5 years: 56.7 years for males, and 61.8 years for females. For every 100 females there are 139.8 males.

411
Total Population
11
Density (mi²)
-2 -0.48%
Growth

Osco township Population

Osco township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026411-2-0.48%
2025413-2-0.48%
2024415-2-0.48%
2023417-4-0.95%
2022421-3-0.71%
2021424-2-0.47%
2020426-1-0.23%
2019445-1-0.22%
2018446-1-0.22%
2017447-3-0.67%
2016450-1-0.22%
2015451-2-0.44%
2014453-1-0.22%
2013454-3-0.66%
201245700%
2011457-2-0.44%
201045900%

Median Age

Overall: 61.5 years
Female: 61.8 years
Male: 56.7 years

Osco township Adults

There are 348 adults, (130 of whom are seniors) in Osco township.

Sex Ratio

Female: 161 (41.7%)
Male: 225 (58.3%)

Demographics

The racial composition of Osco township includes 99.22% White, and smaller percentages for Two or more races and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White38399.22%
Two or more races30.78%
Race
Population ↓
Percentage (of total)
White38399.22%
Two or more races30.78%

Osco township Marital Status

Economics and Income Statistics

Osco township 's average per capita income is $54,223. Household income levels show a median of $110,119. The poverty rate stands at 2.59%.

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$159,063-
Families$157,708$132,353
Households$110,119$110,201
Non Families$49,038$61,791

$54,223

Average Income

$110,119

Median Household Income

2.59%

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)