Plum Hill township

County:: Washington County
County Seat:: No
Area (mi²):: 37.816
State:: Illinois

Plum Hill township is located in Washington County, Illinois. Plum Hill township has a 2025 population of 485. Plum Hill township is currently declining at a rate of -0.21% annually and its population has decreased by -1.22% since the most recent census, which recorded a population of 491 in 2020.

The average household income in Plum Hill township is $116,203 with a poverty rate of 4.55%. The median age in Plum Hill township is 57.4 years: 57.3 years for males, and 58 years for females.

Demographics

The racial composition of Plum Hill township includes 96.52% White, 3.48% Asian, and smaller percentages for Black or African American, Native American, Native Hawaiian or Pacific Islander, other race, Two or more races and multiracial populations.

Population by Race

White

Asian

Black or African American

Native American

Native Hawaiian or Pacific Islander

Other race

Two or more races

Race	Population	Percentage (of total)
White	361	96.52%
Asian	13	3.48%
Black or African American	0	0%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%
Two or more races	0	0%

Plum Hill township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Plum Hill township's average per capita income is $45,787. Household income levels show a median of $97,891. The poverty rate stands at 4.55%.

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	$134,250	-
Families	$133,250	$144,882
Households	$97,891	$116,203
Non Families	$56,250	$68,841

$45,787

Average Income

$97,891

Median Household Income

4.55%

Poverty Rate