Rio Flag

Rio

County:
Knox County
County Seat:
No
Area (mi²):
0.312
State:
Illinois

Rio is a village located in Knox County, Illinois. Rio has a 2025 population of 204 . Rio is currently declining at a rate of -0.49% annually and its population has decreased by -2.39% since the most recent census, which recorded a population of 209 in 2020.

The average household income in Rio is $79,473 with a poverty rate of 25.24%. The median age in Rio is 36 years: 42.8 years for males, and 31.3 years for females. For every 100 females there are 65.4 males.

204
Total Population
653
Density (mi²)
-1 -0.49%
Growth

Rio Population

Rio Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Rio includes 91.43% White, and smaller percentages for Black or African American and multiracial populations.

Population by Race

White (91.43%)

Two or more races (7.14%)

Black or African American (1.43%)

Race
Population
Percentage (of total)
White19291.43%
Two or more races157.14%
Black or African American31.43%

Rio Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Rio's average per capita income is $37,292. Household income levels show a median of $62,917. The poverty rate stands at 25.24%.

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$86,250-
Families$64,167$84,540
Households$62,917$79,473
Non Families$47,813$48,840

$37,292

Average Income

$62,917

Median Household Income

25.24%

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)