South Fayette is a township in Allegheny County, Pennsylvania, home to about 18,460 people across 20 square miles. Its ZIP codes are 15017, 15031, 15057, 15064 and 15082, and parts of 15071, 15142 and 15321 are in South Fayette too.
Homes sold for a median of $163 per square foot across 5 ZIP codes in the three months ending August 2026, and 4 of 5 were seller’s markets.
Mostly South Fayette; also Bridgeville and Collier
All in South Fayette
Mostly South Fayette; also Cecil and North Fayette
All in South Fayette
All in South Fayette
Mostly North Fayette; part is in South Fayette
Mostly Collier; part is in South Fayette
Mostly Cecil; part is in South Fayette
Each card is that ZIP code’s whole market, including any part outside South Fayette. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up South Fayette’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)9 miles away |
|---|---|
| Nearest city of 250,000+ | Pittsburgh, PA12 miles away |
| Nearest city of 1 million+ | Philadelphia, PA268 miles away |
Straight-line distances from the center of South Fayette; 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.
South Fayette had 18,358 residents in the 2020 census, up 50% since 2000.
It’s the 116th largest of 2,568 towns in Pennsylvania by population.
Allegheny County grew from 775,058 residents in 1900 to 1,250,578 in 2020.
Allegheny County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 83°F in summer, and winter lows average 21°F. About 39.6 inches of rain and melted snow fall in a typical year, with about 44 inches of snow.
Source: NOAA 1991–2020 climate normals, Pittsburgh Intl Ap, PA weather station (8 miles away).
709,774 jobs at 33,812 businesses in Allegheny County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
351 doctors and other health care providers list an office in South Fayette’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 24 |
|---|---|
| Specialist doctors | 21 |
| Dentists | 28 |
| Nurse practitioners and physician assistants | 50 |
| Mental health providers | 166 |
| Physical and occupational therapists | 44 |
| Optometrists | 4 |
| Chiropractors | 14 |
| Pharmacies | 14 |
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 (10 nearby)
Grocery stores (1 nearby)
Pharmacies
Libraries (2 nearby)
Museums
Theaters and performance venues
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.
Established in 1846.
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Chartiers Valley SD, Fort Cherry SD, South Fayette Township SD and others. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Chartiers Valley Primary SchBridgeville | K–2 | 892 | Public | 4.6 mi |
| Fort Cherry El CtrMc Donald | K–6 | 455 | Public | 4.9 mi |
| South Fayette El SchMcDonald | K–2 | 717 | Public | 1.4 mi |
| South Fayette Intermediate SchMcDonald | 3–5 | 803 | Public | 1.4 mi |
| Cecil Intrmd SchMc Donald | 5–6 | 412 | Public | 3.5 mi |
| Chartiers Valley MSBridgeville | 6–8 | 751 | Public | 4.9 mi |
| South Fayette MSMcDonald | 6–8 | 859 | Public | 1.4 mi |
| Fort Cherry JSHSMc Donald | 7–12 | 457 | Public | 4.9 mi |
| Chartiers Valley HSBridgeville | 9–12 | 1,029 | Public | 4.7 mi |
| South Fayette HSMcDonald | 9–12 | 1,143 | Public | 1.5 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Montessori Childrens SchoolhouseBridgeville Rvd | Pre-K–K | 8 | Nonsectarian | 4.7 mi |
| Southwood SchoolBridgeville | 1–12 | 36 | Nonsectarian | 4.1 mi |
| Wesley BridgeBridgeville | 12 | 9 | Nonsectarian | 3.8 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 North Fayette, Cecil, Bridgeville, Collier, McDonald Borough (Washington County), Mount Pleasant Township (Washington County), Oakdale, Scott Township (Allegheny County), Robinson, Robinson Township and McDonald Borough (Allegheny County).
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.