Harlem township

County:: Stephenson County
County Seat:: No
Area (mi²):: 31.564
State:: Illinois

Harlem township is located in Stephenson County, Illinois. Harlem township has a 2025 population of 1,910. Harlem township is currently declining at a rate of -0.98% annually and its population has decreased by -4.74% since the most recent census, which recorded a population of 2,005 in 2020.

The average household income in Harlem township is $104,471 with a poverty rate of 4.72%. The median age in Harlem township is 57.1 years: 56.9 years for males, and 58 years for females.

Demographics

The racial composition of Harlem township includes 81.65% White, 14.24% Black or African American, and smaller percentages for Asian, Two or more races, Native American, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Black or African American

Asian

Two or more races

Native American

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	1,904	81.65%
Black or African American	332	14.24%
Asian	52	2.23%
Two or more races	37	1.59%
Native American	7	0.3%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Harlem township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Harlem township's average per capita income is $48,125. Household income levels show a median of $93,750. The poverty rate stands at 4.72%.

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	$108,214	-
Families	$99,615	$110,212
Households	$93,750	$104,471
Non Families	$62,273	$70,516

$48,125

Average Income

$93,750

Median Household Income

4.72%

Poverty Rate