Monongahela
City in Washington County, Pennsylvania

Monongahela is a city in Washington County, Pennsylvania, with 4,159 residents (2020 Census). It sits at 755 ft (230 m) above sea level. The nearest town is Carroll, 1.0 miles S.
- 4,159residents (2020 Census)
- 755 ftelevation · 230 m
- 1.9 sq miland area · 5.0 km²
- 2,174 / sq mipopulation density
- 15063ZIP code
About Monongahela
Monongahela, referred to locally as Mon City, is a third-class city in Washington County, Pennsylvania, United States. The population was 4,149 at the 2020 census. It is part of the Pittsburgh metropolitan area, about 17 miles (27 km) south of Pittsburgh proper.
The city of Monongahela sits at a location where several locally important Pennsylvania state routes meet: a concurrency between Pennsylvania routes 88, 136, and 837 makes up most of the length of the city's Main Street, and the city's Park Avenue carries Pennsylvania route 481 to its northern terminus at Main Street.
Monongahela is one of just two cities in Washington County, and is the second smallest city in Pennsylvania (after Parker). The town is served by the Ringgold School District.
Text: Wikipedia · CC BY-SA 4.0
Monongahela weather: 7-day forecast
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Living in Monongahela
- Median household income
- $59,861
- Median home value
- $114,300
- Median rent
- $818/mo
- Median age
- 43
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Map of Monongahela
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Open in Google Maps ›Monongahela, PA population
Monongahela had 4,159 residents in the 2020 Census.
| 2020 Census | 4,159 |
|---|---|
| Density | 2,174 per sq mi (839 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Monongahela at a glance
| State | Pennsylvania (PA) |
|---|---|
| County | Washington County |
| Type | City |
| Population | 4,159 (2020) |
| Land area | 1.91 sq mi (5.0 km²) |
| Water area | 0.17 sq mi (0.45 km²) |
| Elevation | 755 ft (230 m) |
| Coordinates | 40.1912° N, 79.9225° W |
| ZIP code | 15063 |
| Official website | cityofmonongahela-pa.gov |
| Census code (GEOID) | 4250408 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Monongahela
- Carroll1.0 mi S
- Wickerham Manor-Fisher1.2 mi SE
- Baidland1.7 mi W
- New Eagle2.0 mi NW
- North Charleroi2.9 mi S
- Forward2.9 mi N
- Donora3.3 mi E
- Bunola3.3 mi NW
- Monessen3.4 mi SE
- Van Voorhis3.4 mi SW
- Webster3.8 mi E
- Charleroi3.9 mi S
Straight-line distance between town centers.
Frequently asked questions about Monongahela
What county is Monongahela in?
Monongahela is in Washington County, Pennsylvania.
What is the population of Monongahela, PA?
4,159 people lived in Monongahela at the 2020 Census.
What is the ZIP code of Monongahela, PA?
The ZIP code of Monongahela is 15063.
What is the elevation of Monongahela?
755 feet (230 m) above sea level.
What towns are near Monongahela?
Carroll (1.0 mi), Wickerham Manor-Fisher (1.2 mi), Baidland (1.7 mi), New Eagle (2.0 mi), North Charleroi (2.9 mi).
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