Kelly is a township in Union County, Pennsylvania, home to about 3,765 people across 17 square miles. Its ZIP code is 17886, and parts of 17837 are in Kelly too.
Homes sold for a median of $127 per square foot in the three months ending August 2026, a seller’s market.
Mostly Kelly; also White Deer
Mostly East Buffalo; part is in Kelly
Each card is that ZIP code’s whole market, including any part outside Kelly. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
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| Nearest major airport | Philadelphia International Airport (PHL)116 miles away |
|---|---|
| Closer regional airport | Williamsport Regional Airport (IPT)19 miles away |
| Nearest city of 250,000+ | Philadelphia, PA114 miles away |
Straight-line distances from the center of Kelly; 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.
Kelly had 3,994 residents in the 2020 census, down 11% since 2000.
It’s the 760th largest of 2,568 towns in Pennsylvania by population.
Union County grew from 17,592 residents in 1900 to 42,681 in 2020.
Union County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 84°F in summer, and winter lows average 19°F. About 43.9 inches of rain and melted snow fall in a typical year, with about 29 inches of snow.
Source: NOAA 1991–2020 climate normals, Lewisburg, PA weather station (2 miles away).
16,233 jobs at 960 businesses in Union 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 (11 nearby)
Grocery stores (3 nearby)
Pharmacies (1 nearby)
Libraries (2 nearby)
Museums (1 nearby)
Theaters and performance venues (1 nearby)
Counts are within about 3 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 East Buffalo, Lewisburg, Buffalo Township (Union County) and White Deer.
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.