Fallowfield is a township in Washington County, Pennsylvania, home to about 4,060 people across 21 square miles. Its ZIP code is 15366, and parts of 15022, 15063, 15314 and 15423 are in Fallowfield too.
Homes sold for a median of $136 per square foot across 4 ZIP codes in the three months ending August 2026, and 2 of 4 were seller’s markets.
All in Fallowfield
Mostly Charleroi; part is in Fallowfield
Mostly Monongahela City; part is in Fallowfield
Mostly Bentleyville; part is in Fallowfield
Mostly California; part is in Fallowfield
Each card is that ZIP code’s whole market, including any part outside Fallowfield. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
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| Nearest major airport | Pittsburgh International Airport (PIT)29 miles away |
|---|---|
| Nearest city of 250,000+ | Pittsburgh, PA21 miles away |
| Nearest city of 1 million+ | Philadelphia, PA254 miles away |
Straight-line distances from the center of Fallowfield; 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.
Fallowfield had 4,099 residents in the 2020 census, down 8% since 2000.
It’s the 702nd 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 (2 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).
Nearest hospitals
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances.
Parks (5 nearby)
Grocery stores (2 nearby)
Pharmacies (2 nearby)
Libraries (2 nearby)
Museums (1 nearby)
Theaters and performance venues (1 nearby)
Counts are within about 3 miles 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.
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Shares ZIP codes with Carroll Township (Washington County), Charleroi, Monongahela City, California, Bentleyville, Forward Township (Allegheny County), North Charleroi, Speers, Somerset Township (Washington County), Long Branch, West Pike Run, Twilight, Elco, Coal Center and Allenport.
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.