Monongahela City is a city in Washington County, Pennsylvania, home to about 4,109 people across 1.9 square miles. Its ZIP code is 15063.
Homes sold for a median of $138 per square foot in the three months ending August 2026, a seller’s market.
Mostly Monongahela City; also Carroll Township (Washington County) and Forward Township (Allegheny County)
Each card is that ZIP code’s whole market, including any part outside Monongahela City. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Monongahela City’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Pittsburgh International Airport (PIT)26 miles away |
|---|---|
| Nearest city of 250,000+ | Pittsburgh, PA17 miles away |
| Nearest city of 1 million+ | Philadelphia, PA253 miles away |
Straight-line distances from the center of Monongahela City; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Monongahela City had 4,159 residents in the 2020 census, down 13% since 2000.
It’s the 693rd largest of 2,568 towns in Pennsylvania by population.
Washington County grew from 92,181 residents in 1900 to 209,349 in 2020.
Washington County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 85°F in summer, and winter lows average 21°F. About 41.1 inches of rain and melted snow fall in a typical year, with about 10 inches of snow.
Source: NOAA 1991–2020 climate normals, Charleroi Lock 4, PA weather station (4 miles away).
84,410 jobs at 5,340 businesses in Washington County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
158 doctors and other health care providers list an office in Monongahela City.
Nearest hospitals
Providers with an office here
| Primary care doctors | 24 |
|---|---|
| Specialist doctors | 37 |
| Dentists | 5 |
| Nurse practitioners and physician assistants | 38 |
| Mental health providers | 14 |
| Physical and occupational therapists | 33 |
| Chiropractors | 7 |
| Pharmacies | 10 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (3 nearby)
Grocery stores (2 nearby)
Pharmacies (3 nearby)
Libraries (1 nearby)
Museums
Theaters and performance venues
Counts are within about 1 mile of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Ringgold SD, Elizabeth Forward SD. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Ringgold El Sch SouthMonongahela | K–4 | 517 | Public | 1.6 mi |
| William Penn El SchMonongahela | K–5 | 333 | Public | 2.6 mi |
| Ringgold MSMonongahela | 5–8 | 738 | Public | 3.0 mi |
| Ringgold SHSMonongahela | 9–12 | 810 | Public | 2.9 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Srces-Madonna Catholic Regional SchoolMonongahela | Pre-K–8 | 98 | Roman Catholic | 0.9 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Carroll Township (Washington County), Forward Township (Allegheny County) and Fallowfield.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.