Rio township Flag

Rio township

County:
Knox County
County Seat:
No
Area (mi²):
36.137
State:
Illinois

Rio township is located in Knox County, Illinois. Rio township has a 2026 population of 505. Rio township is currently growing at a rate of 0.2% annually but its population has decreased by -1.94% since the most recent census, which recorded a population of 515 in 2020.

The median household income in Rio township is $76,500 with a poverty rate of 11.66%. The median age in Rio township is 52.6 years: 58.7 years for males, and 45.5 years for females. For every 100 females there are 68.1 males.

505
Total Population
14
Density (mi²)
1 0.2%
Growth

Rio township Population

Rio township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202650510.2%
202550410.2%
202450310.2%
2023502-2-0.4%
2022504-6-1.18%
2021510-5-0.97%
2020515-2-0.39%
2019490-4-0.81%
2018494-4-0.8%
2017498-5-0.99%
2016503-2-0.4%
2015505-5-0.98%
2014510-4-0.78%
2013514-2-0.39%
2012516-3-0.58%
201151910.19%
201052100%

Median Age

Overall: 52.6 years
Female: 45.5 years
Male: 58.7 years

Rio township Adults

There are 284 adults, (104 of whom are seniors) in Rio township.

Sex Ratio

Female: 204 (59.5%)
Male: 139 (40.5%)

Demographics

The racial composition of Rio township includes 91.55% White, and smaller percentages for Black or African American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White31491.55%
Two or more races267.58%
Black or African American30.87%
Race
Population ↓
Percentage (of total)
Two or more races226.41%
White61.75%
Black or African American10.29%
Race
Population ↓
Percentage (of total)
White30889.8%
Two or more races41.17%
Black or African American20.58%

Rio township Marital Status

Economics and Income Statistics

Rio township 's average per capita income is $51,250. Household income levels show a median of $76,500. The poverty rate stands at 11.66%.

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$103,000-
Families$93,750$109,640
Households$76,500$99,372
Non Families$50,938$46,156

$51,250

Average Income

$76,500

Median Household Income

11.66%

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)