Portland township

County:: Whiteside County
County Seat:: No
Area (mi²):: 34.701
State:: Illinois

Portland township is located in Whiteside County, Illinois. Portland township has a 2025 population of 417. Portland township is currently declining at a rate of 0% annually and its population has decreased by -1.65% since the most recent census, which recorded a population of 424 in 2020.

The average household income in Portland township is $97,295 with a poverty rate of 0%. The median age in Portland township is 45.1 years: 45.2 years for males, and 38.9 years for females.

Demographics

The racial composition of Portland township includes 95.6% White, and smaller percentages for Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	348	95.6%
Two or more races	16	4.4%
Black or African American	0	0%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Portland township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Portland township's average per capita income is $39,766. Household income levels show a median of $113,148. The poverty rate stands at 0%.

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	$113,426	-
Households	$113,148	$97,295
Families	$112,824	$96,756
Non Families	-	-

$39,766

Average Income

$113,148

Median Household Income

0%

Poverty Rate