Sunbury is a city in Northumberland County, Pennsylvania, home to about 9,617 people across 2.0 square miles. Its ZIP code is 17801.
Homes sold for a median of $110 per square foot in the three months ending August 2026, a seller’s market.
Mostly Sunbury; also Upper Augusta and Rockefeller
Each card is that ZIP code’s whole market, including any part outside Sunbury. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Sunbury’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)106 miles away |
|---|---|
| Closer regional airport | Williamsport Regional Airport (IPT)28 miles away |
| Nearest city of 250,000+ | Philadelphia, PA104 miles away |
Straight-line distances from the center of Sunbury; 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.
Sunbury had 9,719 residents in the 2020 census, down 8% since 2000.
It’s the 281st 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 43.6 inches of rain and melted snow fall in a typical year, with about 29 inches of snow.
Source: NOAA 1991–2020 climate normals, Sunbury, PA weather station (about a mile 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).
77 doctors and other health care providers list an office in Sunbury.
Nearest hospitals
Providers with an office here
| Primary care doctors | 13 |
|---|---|
| Specialist doctors | 11 |
| Dentists | 6 |
| Nurse practitioners and physician assistants | 15 |
| Mental health providers | 9 |
| Physical and occupational therapists | 19 |
| Optometrists | 1 |
| Chiropractors | 3 |
| Pharmacies | 6 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (4 nearby)
Grocery stores
Pharmacies
Libraries
Museums
Counts are within about 1 mile 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.
Established in 1772.
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Shikellamy SD. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Oaklyn SchSunbury | K–2 | 375 | Public | 1.0 mi |
| Chief Shikellamy SchSunbury | 3–5 | 614 | Public | 1.4 mi |
| Shikellamy HSSunbury | 9–12 | 855 | Public | 0.6 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Upper Augusta, Rockefeller, Lower Augusta, Shamokin Township and Snydertown.
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.