Plum

County:: Allegheny County
County Seat:: No
Area (mi²):: 28.57
State:: Pennsylvania

Plum is a borough located in Allegheny County, Pennsylvania. Plum has a 2025 population of 25,890. Plum is currently declining at a rate of -0.96% annually and its population has decreased by -4.61% since the most recent census, which recorded a population of 27,142 in 2020.

The average household income in Plum is $114,193 with a poverty rate of 3.05%. The median age in Plum is 43.5 years: 42.2 years for males, and 45.1 years for females.

Demographics

The racial composition of Plum includes 92.33% White, 3.27% Black or African American, and smaller percentages for Two or more races, Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Black or African American

Two or more races

Asian

Other race

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	24,811	92.33%
Black or African American	880	3.27%
Two or more races	692	2.58%
Asian	281	1.05%
Other race	206	0.77%
Native American	3	0.01%
Native Hawaiian or Pacific Islander	0	0%

Plum Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Plum's average per capita income is $62,736. Household income levels show a median of $98,475. The poverty rate stands at 3.05%.

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	$128,689	-
Families	$117,447	$130,953
Households	$98,475	$114,193
Non Families	$54,292	$64,936

$62,736

Average Income

$98,475

Median Household Income

3.05%

Poverty Rate