Letterkenny is a township in Franklin County, Pennsylvania, home to about 2,491 people across 70 square miles. Its ZIP codes are 17246 and 17265, and parts of 17201 and 17244 are in Letterkenny too.
Homes sold for a median of $206 per square foot across 2 ZIP codes in the three months ending August 2026, and 1 of 2 were seller’s markets.
All in Letterkenny
All in Letterkenny
Mostly Chambersburg; part is in Letterkenny
Mostly Southampton Township (Franklin County); part is in Letterkenny
Each card is that ZIP code’s whole market, including any part outside Letterkenny. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Letterkenny’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Washington Dulles International Airport (IAD)78 miles away |
|---|---|
| Closer regional airport | Hagerstown Regional Richard A Henson Field (HGR)24 miles away |
| Nearest city of 250,000+ | Baltimore, MD78 miles away |
| Nearest city of 1 million+ | Philadelphia, PA136 miles away |
Straight-line distances from the center of Letterkenny; 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.
Letterkenny had 2,462 residents in the 2020 census, up 19% since 2000.
It’s the 1064th largest of 2,568 towns in Pennsylvania by population.
Franklin County grew from 54,902 residents in 1900 to 155,932 in 2020.
Franklin County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 85°F in summer, and winter lows average 23°F. About 43.4 inches of rain and melted snow fall in a typical year, with about 31 inches of snow.
Source: NOAA 1991–2020 climate normals, Chambersburg 1 Ese, PA weather station (9 miles away).
52,942 jobs at 3,111 businesses in Franklin County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Nearest hospitals
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances.
Parks (2 nearby)
Grocery stores
Libraries
Museums
Theaters and performance venues
Counts are within about 5.5 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.
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Shares ZIP codes with Chambersburg, Greene Township (Franklin County), Southampton Township (Franklin County), Lurgan, Hamilton Township (Franklin County) and Orrstown.
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.