The median home price in Upper St. Clair, PA sits around $450,000 right now. Most people buying a home in Upper St. Clair start their search by nailing down the local zip codes and neighborhood boundaries - and that's smart, because getting the geography wrong early wastes a lot of time.

Knowing the exact postal boundaries matters when you're setting up property alerts or estimating your commute into downtown Pittsburgh. With about 65 active homes in inventory, you don't have the luxury of figuring out the basics after you've already fallen in love with a listing.

The Primary Zip Code for Upper St. Clair, PA

The main postal code serving Upper St. Clair is 15241. Whether you're searching real estate listings, pulling municipal data, or setting up local services, that's the number you'll use.

Here's something that trips up a lot of buyers: Upper St. Clair is a distinct municipality, but the United States Postal Service routes much of the mail through the broader Pittsburgh network. That means plenty of homes within the 15241 boundary carry a default Pittsburgh mailing address - even though they sit entirely within Upper St. Clair township limits. It's a bureaucratic quirk that confuses people, and we'll come back to it in the FAQ.

Homes here currently sell in roughly 53 days. Recent data puts the average sale-to-list ratio at 100.5%, so buyers targeting 15241 should come prepared.

Local Area Code Information

Telephone numbers in Upper St. Clair use the 412 area code - the standard code for Pittsburgh and the surrounding Allegheny County suburbs.

If you're setting up new utilities or registering for township services after a move, expect to dial and receive calls primarily from 412 numbers.

Mapping the Upper St. Clair Area

Upper St. Clair sits in the South Hills region, just south of Downtown Pittsburgh. A zip code map of the area shows 15241 covering the majority of the township's residential and commercial zones, and seeing those boundaries visually helps you understand exactly where the township meets its neighbors.

The borders of 15241 align closely with the township lines, though postal routes and municipal borders aren't always a perfect match. When you're reviewing a specific property - especially one near the edges of the township - consult an interactive boundary map or municipal records to confirm it falls under the correct local services and tax jurisdictions. Don't assume.

Finding Your Full 9-Digit Zip Code

The standard five-digit 15241 code handles most everyday needs, but official documents - mortgage paperwork, utility billing - often require the full ZIP+4 code. Those extra four digits pinpoint a specific delivery route, street segment, or even a single building.

You can look up the exact nine-digit code for any Upper St. Clair property using the official USPS address lookup tool online. Enter the street address, and it generates the precise postal routing number you need.

County Details for Upper St. Clair

Upper St. Clair is in Allegheny County. That one fact dictates everything from your property tax rates to the local court system and county-level municipal services.

Because the township sits within the Pittsburgh metropolitan area, it shares many regional resources with the city and the surrounding South Hills suburbs. Allegheny County handles property assessments, and those assessments directly drive your annual tax bill. When you're putting together a monthly housing budget, you need to factor in Allegheny County's specific tax millage rates alongside the local township taxes - both numbers matter.

Zip Codes by Neighborhood in Upper St. Clair

The 15241 zip code covers several distinct neighborhoods across the township. Bel-Air, Deerfield Manor, and Hunting Ridge all share this same primary postal code. So do Marble Top Acres and South Gate Farms.

You'll find varying property styles across these subdivisions, but the mailing designation stays consistent throughout the township. Worth mentioning: the area is also home to Gilfillan Farm, a mid-19th-century working farm listed on the National Register of Historic Places. Properties near that landmark use 15241 as well.

Frequently Asked Questions

Which zip codes should I use to search for all homes for sale in Upper St. Clair, PA?

You should primarily use 15241 to search for homes in Upper St. Clair. This single zip code covers the vast majority of the township.

Does buying a house in the 15241 zip code guarantee my kids are eligible for the Upper St. Clair School District?

No. While 15241 closely aligns with the township, postal boundaries and school district boundaries are set by different entities. Always verify the specific address directly with the school district before purchasing.

If my Upper St. Clair property has a Pittsburgh zip code, do I have to pay Pittsburgh city taxes?

No. If your home is physically located within Upper St. Clair township in Allegheny County, you pay Upper St. Clair and Allegheny County taxes. A Pittsburgh mailing address assigned by the USPS does not subject you to Pittsburgh city taxes.

Why do most homes located in Upper St. Clair Township have a Pittsburgh mailing address?

The USPS routes mail for many South Hills suburbs through the main Pittsburgh post office network. Because of that routing system, 15241 addresses often default to a Pittsburgh city name in postal databases.

Do property values in Upper St. Clair vary depending on whether the house is in the 15241 or 15017 zip code?

Property values are driven more by specific neighborhoods - like Deerfield Manor or Hunting Ridge - than by the zip code alone. The median sale price in the area is around $450,000, but individual home prices depend on the property's features and exact location.

Which zip codes overlap the borders between Upper St. Clair and neighboring townships like Mt. Lebanon or Bethel Park?

The 15241 zip code handles Upper St. Clair, but buyers near the edges of the township might see listings bordering neighboring postal zones. Always check the municipal tax records for Allegheny County to confirm which township a border property officially sits in.