South Mountain, Pennsylvania

South Mountain: a city in Franklin County, Pennsylvania.

About

South Mountain is a city located in the county of Franklin in the U.S. state of Pennsylvania.

Quick Facts about South Mountain

State Pennsylvania (United States)
County Franklin County
Latitude & Longitude 39.8465,-77.4878
Time Zone America/New_York
Local time 05:05:32 (10th November 2026)
Postal code 17261
Weather 64℉ Sunny 7-days weather

Geography

South Mountain is located at 39°50'47"N 77°29'16"W (39.8464800, -77.4877700).

South Mountain map

Click "full screen" full screen map icon to open full mode. View satellite images

Weather

64°F
Sunny
5 to 12 mph SW Tuesday

Sunny, with a high near 64. Southwest wind 5 to 12 mph.

7-Day Forecast
South Mountain zip code is 17261. County name: Franklin, County fips: 42055
Pinchgut

Nearby Schools and Colleges

Schools and campuses linked to South Mountain, PA. Select a name to open its map and contact details.

Code Name City ZIP
214795 Pennsylvania State University-Penn State Mont Alto Mont Alto (PA) 17237-9700

Nearby Transit Stations (24)

Rail and bus stations connected to South Mountain, PA. Select a station to open its map and address details.

Code Name Address Type
HAG Hagerstown, MD 123 West Franklin Street BUS
FRR Frederick Airport, MD 1341 Hughes Ford Road BUS
FRC Frederick, MD 100 South East Street RAIL
HNK Hancock, MD 434 East Main Street BUS
MRB Martinsburg station 229 East Martin St. RAIL

Closest post offices linked to South Mountain.

Post Office Name City ZIP
South Mountain Post Office South Mountain (PA) 17261

Other cities in Franklin County

Cities, towns, neighborhoods & other populated places in Franklin County , PA.

City Name Population Title
Chambersburg 21,231 Borough in Franklin County, Pennsylvania, United States
Waynesboro 10,906 Borough in Pennsylvania
Salem 6,367 Township in Westmoreland County, Pennsylvania
Charlestown 6,328 Township in Chester County, Pennsylvania
Saint Thomas 6,039 Township in Franklin County, Pennsylvania
Greencastle 3,989 Borough of Pennsylvania
Mount Union 2,312 Borough of Pennsylvania
Metal 1,857 Township in Franklin County, Pennsylvania
Mont Alto 1,729 Borough of Pennsylvania
Mercersburg 1,527 Borough of Pennsylvania