ZIP code · South Mountain · Pennsylvania · United States
ZIP code 17261 — South Mountain
ZIP code 17261 serves South Mountain, Pennsylvania.
- Postal code
- 17261Single source Value from one source, not cross-checked.
- City
- South Mountain
- County
- Franklin
- State
- Pennsylvania
- Country
- United States
- Coordinates
- 39.8465, -77.4878 — precision precise (locality)
View on OpenStreetMap - Population
- 26 (ZCTA, ACS 5-year)
- Median age
- 18.1
- Time zone
- America/New_York (UTC−5 / UTC−4 DST)
- Area codes
- 223, 717 (from the nearest rate centre)Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS). Data generated on 2026-08-21. Methodology · Report an error on this page