Oneco township

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

Oneco township is located in Stephenson County, Illinois. Oneco township has a 2025 population of 1,214. Oneco township is currently declining at a rate of -1.14% annually and its population has decreased by -5.38% since the most recent census, which recorded a population of 1,283 in 2020.

The average household income in Oneco township is $74,382 with a poverty rate of 12%. The median age in Oneco township is 40.8 years: 42.5 years for males, and 39.9 years for females.

Demographics

The racial composition of Oneco township includes 96.81% White, and smaller percentages for Two or more races, other race, Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Other race

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	1,244	96.81%
Two or more races	29	2.26%
Other race	9	0.7%
Black or African American	3	0.23%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%

Oneco township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Oneco township's average per capita income is $46,290. Household income levels show a median of $66,445. The poverty rate stands at 12%.

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	$91,172	-
Families	$77,000	$88,034
Households	$66,445	$74,382
Non Families	$33,125	$37,609

$46,290

Average Income

$66,445

Median Household Income

12%

Poverty Rate