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, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Other race

Black or African American

Asian

Native American

Native Hawaiian or Pacific Islander

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%
Native Hawaiian or Pacific Islander	0	0%

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