Mount Oliver Flag

Mount Oliver

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

Mount Oliver is a borough located in Allegheny County, Pennsylvania. Mount Oliver has a 2026 population of 3,196. Mount Oliver is currently declining at a rate of -0.96% annually and its population has decreased by -5.58% since the most recent census, which recorded a population of 3,385 in 2020.

The median household income in Mount Oliver is $52,297 with a poverty rate of 15.07%. The median age in Mount Oliver is 36.1 years: 38.2 years for males, and 33.3 years for females. For every 100 females there are 92.4 males.

3.2K
Total Population
9,414
Density (mi²)
-31 -0.96%
Growth

Mount Oliver Population

Mount Oliver Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20263,196-31-0.96%
20253,227-32-0.98%
20243,259-16-0.49%
20233,275-28-0.85%
20223,303-46-1.37%
20213,349-36-1.06%
20203,385-5-0.15%
20193,281-17-0.52%
20183,298-20-0.6%
20173,318-27-0.81%
20163,345-25-0.74%
20153,370-26-0.77%
20143,396-13-0.38%
20133,409-4-0.12%
20123,413-1-0.03%
20113,41420.06%
20103,41290.26%
20003,970-190-4.57%
19904,160-416-9.09%
19804,576-911-16.6%
19705,487-493-8.24%
19605,980-666-10.02%
19506,646-335-4.8%
19406,981-90-1.27%
19307,0711,49626.83%
19205,5751,33431.45%
19104,24100%

Median Age

Overall: 36.1 years
Female: 33.3 years
Male: 38.2 years

Mount Oliver Adults

There are 2,242 adults, (278 of whom are seniors) in Mount Oliver.

Sex Ratio

Female: 1,725 (52%)
Male: 1,594 (48%)

Demographics

The racial composition of Mount Oliver includes 48.57% White, 39.17% Black or African American, 5.75% other race, and smaller percentages for Asian and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White1,61248.57%
Black or African American1,30039.17%
Two or more races1935.82%
Other race1915.75%
Asian230.69%
Race
Population ↓
Percentage (of total)
Other race1003.01%
White160.48%
Black or African American110.33%
Race
Population ↓
Percentage (of total)
White1,59648.09%
Black or African American1,28938.84%
Two or more races1935.82%
Other race912.74%
Asian230.69%

Mount Oliver Marital Status

Economics and Income Statistics

Mount Oliver 's average per capita income is $34,481. Household income levels show a median of $52,297. The poverty rate stands at 15.07%.

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$73,750-
Families$59,691$75,601
Households$52,297$64,169
Non Families$37,440$46,968

$34,481

Average Income

$52,297

Median Household Income

15.07%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)