Monongahela Flag

Monongahela

County Seat:
No
Area (mi²):
1.913
State:
Pennsylvania

Monongahela is a city located in Washington County, Pennsylvania. Monongahela has a 2026 population of 4,034. Monongahela is currently declining at a rate of -0.47% annually and its population has decreased by -2.72% since the most recent census, which recorded a population of 4,147 in 2020.

The median household income in Monongahela is $59,861 with a poverty rate of 12.27%. The median age in Monongahela is 43 years: 41.1 years for males, and 45.4 years for females. For every 100 females there are 107.6 males.

4K
Total Population
2,109
Density (mi²)
-19 -0.47%
Growth

Monongahela Population

Monongahela Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20264,034-19-0.47%
20254,053-19-0.47%
20244,072-19-0.46%
20234,091-15-0.37%
20224,106-25-0.61%
20214,131-16-0.39%
20204,147-2-0.05%
20194,107-23-0.56%
20184,130-18-0.43%
20174,148-18-0.43%
20164,166-38-0.9%
20154,204-15-0.36%
20144,219-23-0.54%
20134,242-29-0.68%
20124,271-7-0.16%
20114,278-19-0.44%
20104,297-3-0.07%
20004,761-167-3.39%
19904,928-1,022-17.18%
19805,950-1,163-16.35%
19707,113-1,275-15.2%
19608,388-534-5.99%
19508,922971.1%
19408,8251501.73%
19308,675-13-0.15%
19208,6881,09014.35%
19107,5982,42546.88%
19005,1731,07726.29%
18904,0961,19241.05%
18802,90400%

Median Age

Overall: 43 years
Female: 45.4 years
Male: 41.1 years

Monongahela Adults

There are 3,467 adults, (895 of whom are seniors) in Monongahela.

Sex Ratio

Female: 1,979 (48.2%)
Male: 2,130 (51.8%)

Demographics

The racial composition of Monongahela includes 94.06% White, and smaller percentages for other race, Black or African American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White3,86594.06%
Two or more races1814.4%
Other race581.41%
Black or African American50.12%
Race
Population ↓
Percentage (of total)
Other race581.41%
Two or more races370.9%
White130.32%
Race
Population ↓
Percentage (of total)
White3,85293.75%
Two or more races1443.5%
Black or African American50.12%

Monongahela Marital Status

Economics and Income Statistics

Monongahela 's average per capita income is $39,808. Household income levels show a median of $59,861. The poverty rate stands at 12.27%.

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$89,028-
Families$80,638$88,193
Households$59,861$74,232
Non Families$35,927$50,811

$39,808

Average Income

$59,861

Median Household Income

12.27%

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)