Sterling township

County:: Whiteside County
County Seat:: No
Area (mi²):: 23.37
State:: Illinois

Sterling township is located in Whiteside County, Illinois. Sterling township has a 2025 population of 16,885. Sterling township is currently declining at a rate of -0.19% annually and its population has decreased by -2.51% since the most recent census, which recorded a population of 17,319 in 2020.

The average household income in Sterling township is $84,130 with a poverty rate of 14.98%.The median age in Sterling township is 42.6 years: 38.9 years for males, and 44.8 years for females.

Demographics

The racial composition of Sterling township includes 80.43% White, 3.63% other race, and smaller percentages for Black or African American, Asian, Native American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	13,819	80.43%
Two or more races	2,116	12.32%
Other race	624	3.63%
Black or African American	332	1.93%
Asian	211	1.23%
Native American	79	0.46%

Sterling township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Sterling township's average per capita income is $44,711. Household income levels show a median of $56,250. The poverty rate stands at 14.98%.

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	$102,996	-
Families	$76,743	$103,046
Households	$56,250	$84,130
Non Families	$32,995	$51,947

$44,711

Average Income

$56,250

Median Household Income

14.98%

Poverty Rate