West Chillisquaque is a township in Northumberland County, Pennsylvania, home to about 2,604 people across 13 square miles. Its ZIP code is 17850, and parts of 17847 are in West Chillisquaque too.
Homes sold for a median of $67 per square foot in the three months ending August 2026.
All in West Chillisquaque
Mostly Milton; part is in West Chillisquaque
Each card is that ZIP code’s whole market, including any part outside West Chillisquaque. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up West Chillisquaque’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Philadelphia International Airport (PHL)115 miles away |
|---|---|
| Closer regional airport | Williamsport Regional Airport (IPT)16 miles away |
| Nearest city of 250,000+ | Philadelphia, PA113 miles away |
Straight-line distances from the center of West Chillisquaque; 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.
West Chillisquaque had 2,597 residents in the 2020 census, down 9% since 2000.
It’s the 1023rd largest of 2,568 towns in Pennsylvania by population.
Northumberland County grew from 90,911 residents in 1900 to 91,647 in 2020.
Northumberland 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 (5 miles away).
23,047 jobs at 1,611 businesses in Northumberland 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 (5 nearby)
Grocery stores (1 nearby)
Pharmacies (1 nearby)
Libraries (1 nearby)
Museums
Theaters and performance venues (1 nearby)
Counts are within about 2.5 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 Milton, Turbot, East Chillisquaque, Limestone Township (Montour County) and Liberty Township (Montour County).
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.