Mount Oliver

County:: Allegheny County
County Seat:: No
Area (mi²):: 0.339
State:: Pennsylvania

Mount Oliver is a borough located in Allegheny County, Pennsylvania. Mount Oliver has a 2025 population of 3,178. Mount Oliver is currently declining at a rate of -1.27% annually and its population has decreased by -6.12% since the most recent census, which recorded a population of 3,385 in 2020.

The average household income in Mount Oliver is $57,473 with a poverty rate of 19.25%. The median age in Mount Oliver is 37.2 years: 38.3 years for males, and 33.4 years for females.

Demographics

The racial composition of Mount Oliver includes 48.85% White, 36.06% Black or African American, 7.41% other race, and smaller percentages for Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Black or African American

Other race

Two or more races

Asian

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	1,635	48.85%
Black or African American	1,207	36.06%
Other race	248	7.41%
Two or more races	232	6.93%
Asian	25	0.75%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Mount Oliver Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Mount Oliver's average per capita income is $34,286. Household income levels show a median of $50,379. The poverty rate stands at 19.25%.

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	$58,472	-
Families	$56,149	$65,668
Households	$50,379	$57,473
Non Families	$35,364	$42,080

$34,286

Average Income

$50,379

Median Household Income

19.25%

Poverty Rate