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 and multiracial populations.

Population by Race

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%

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