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 2025 population of 493. Rio township is currently declining at a rate of -0.6% annually and its population has decreased by -4.09% since the most recent census, which recorded a population of 514 in 2020.

The average household income in Rio township is $101,634 with a poverty rate of 14.48%.The median age in Rio township is 52.2 years: 57.1 years for males, and 52.2 years for females.

Demographics

The racial composition of Rio township includes 93.17% White, and smaller percentages for Asian, Black or African American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	341	93.17%
Two or more races	15	4.1%
Asian	7	1.91%
Black or African American	3	0.82%

Rio township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Rio township's average per capita income is $55,417. Household income levels show a median of $81,731. The poverty rate stands at 14.48%.

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	$104,063	-
Families	$102,500	$110,578
Households	$81,731	$101,634
Non Families	$70,000	$80,604

$55,417

Average Income

$81,731

Median Household Income

14.48%

Poverty Rate