Blawnox is a borough in Allegheny County, Pennsylvania, home to about 1,439 people across 0.3 square miles. It has no ZIP code of its own: it’s part of 15238.
Homes sold for a median of $251 per square foot in the three months ending August 2026, a seller’s market.
Mostly O'Hara; part is in Blawnox
Each card is that ZIP code’s whole market, including any part outside Blawnox. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Blawnox’s story and what everyday life there is like, for people thinking about moving in.
Are you a local agent who knows Blawnox well? Agents who advertise here will be able to write the guide. Advertise on OfferBacked
| Nearest major airport | Pittsburgh International Airport (PIT)19 miles away |
|---|---|
| Nearest city of 250,000+ | Pittsburgh, PA8 miles away |
| Nearest city of 1 million+ | Philadelphia, PA253 miles away |
Straight-line distances from the center of Blawnox; 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.
Blawnox had 1,454 residents in the 2020 census, down 6% since 2000.
It’s the 1475th 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 19°F. About 44.7 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Acmetonia Lock 3, PA weather station (3 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 Blawnox.
Nearest hospitals
Providers with an office here
| Primary care doctors | 29 |
|---|---|
| Specialist doctors | 55 |
| Dentists | 25 |
| Nurse practitioners and physician assistants | 55 |
| Mental health providers | 129 |
| Physical and occupational therapists | 43 |
| Optometrists | 4 |
| Chiropractors | 11 |
| Pharmacies | 8 |
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 (1 nearby)
Grocery stores
Pharmacies
Libraries
Museums
Theaters and performance venues (2 nearby)
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 Fox Chapel Area SD. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Fairview El SchPittsburgh | K–5 | 387 | Public | 1.3 mi |
| Hartwood El SchPittsburgh | K–5 | 386 | Public | 2.9 mi |
| OHara El SchPittsburgh | K–5 | 726 | Public | 1.6 mi |
| Dorseyville MSPittsburgh | 6–8 | 981 | Public | 2.9 mi |
| Fox Chapel Area HSPittsburgh | 9–12 | 1,360 | Public | 1.2 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Shady Side AcademyPittsburgh | Pre-K–12 | 1,118 | Nonsectarian | 0.8 mi |
| Shady Side AcademyPittsburgh | Pre-K–12 | 1,118 | Nonsectarian | 0.9 mi |
| Shady Side Academy Country Day SchoolPittsburgh | Pre-K–5 | 152 | Nonsectarian | 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.
Buying or selling around Blawnox? Tell us what you need and when. No agents advertise here yet, so we’ll keep your request for up to 30 days and send it to local agents who join. No obligation, and you choose who to work with.
Loading map…
Shares ZIP codes with O'Hara, Fox Chapel, Indiana Township and Harmar.
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.