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Monongahela, PA
City in Washington County, Pennsylvania.
Population
4,109
Land area
1.9sq mi
People per sq mi
2,148
ZIP codes
0
Monongahela and its ZIP codes
Monongahela at a glance
- Monongahela is about 7.4 times as dense as Pennsylvania as a whole.
- It is the 352nd most populous of 1,991 cities and towns in Pennsylvania.
- Households here earn a median of $59,861 a year, 23% less than the Pennsylvania figure of $77,971.
- A typical owner-occupied home is valued at $114,300 (55% below Pennsylvania) and median rent is $818 a month.
Local data for Monongahela, PA
Counts from official public data
Housing and community stats
Monongahela, PA, American Community Survey 2020-2024
Median household income
$59,861
Poverty rate
12.3%
Median home value
$114,300
Median rent
$818/mo
Homeownership
69.1%
Bachelor's or higher
22.8%
Median age
43.0
Average commute
29.0 min
Largest reported origins and ancestries: German Americans (853), Italian Americans (768), Irish Americans (752).
Economy and federal money
Jobs, pay, income and spending are for Washington County. PPP loans are for Monongahela.
Unemployment rate
3.0%
Sep 2026, -1.1 pts in a year
Average annual pay
$73,598
89,399 jobs, 2025
Income per person
$76,764
BEA, 2024
Federal spending
$1.7B
FY 2026, $7,957 per person
How people get to work
Monongahela, PA, workers 16 and older. American Community Survey 5-year estimates
- Drove alone83.8%
- Carpooled5.1%
- Public transit1.7%
- Walked0.5%
- Bicycle0.0%
- Taxi, ride-hailing, motorcycle or other0.0%
- Worked from home8.9%
Average one-way commute: 29.0 minutes for people who do not work from home.
Environment and hazard risk
Monongahela, PA, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Moderate
Top: landslide
Storm events since 1996
1,069
Countywide, mostly thunderstorm wind
Flood insurance policies
468
0.5% of homes, county
July high / Jan low
84° / 21°F
40.9 inches of rain a year
Hazards, floods and storm historyCheck a flood zone2 historic places
Cities near Monongahela
| Name | Distance | Land area (sq mi) |
|---|---|---|
| Wickerham Manor-FisherCensus-designated place | 1.4 mi | 2.1 |
| BaidlandCensus-designated place | 1.8 mi | 2.1 |
| New EagleBorough | 1.9 mi | 1 |
| BunolaCensus-designated place | 3.2 mi | 1.1 |
| DonoraBorough | 3.2 mi | 1.9 |
| North CharleroiBorough | 3.3 mi | 0.3 |
| Van VoorhisCensus-designated place | 3.7 mi | 0.4 |
| MonessenCity | 3.8 mi | 2.9 |
| ElramaCensus-designated place | 3.9 mi | 0.1 |
| WebsterCensus-designated place | 3.9 mi | 0.6 |
| CharleroiBorough | 4.1 mi | 0.8 |
| FellsburgCensus-designated place | 5 mi | 1.2 |
| North Belle VernonBorough | 5.2 mi | 0.4 |
| West ElizabethBorough | 5.4 mi | 0.2 |
| SpeersBorough | 5.4 mi | 1 |
| ElizabethBorough | 5.5 mi | 0.3 |
Frequently asked questions
- What county is Monongahela, PA in?
- Monongahela is in Washington County, Pennsylvania.
- What is the population of Monongahela, PA?
- About 4,109 people live in Monongahela, based on American Community Survey 5-year estimates.
- What cities are near Monongahela?
- Nearby places include Wickerham Manor-Fisher (1.4 mi), Baidland (1.8 mi), New Eagle (1.9 mi), Bunola (3.2 mi), Donora (3.2 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023