Ralpho is a township in Northumberland County, Pennsylvania, home to about 4,171 people across 18 square miles. Its ZIP code is 17824, and parts of 17860 and 17872 are in Ralpho too.
Homes sold for a median of $173 per square foot in the three months ending August 2026, a seller’s market.
Mostly Ralpho; also Cleveland
Mostly Shamokin Township; part is in Ralpho
Mostly Shamokin City; part is in Ralpho
Each card is that ZIP code’s whole market, including any part outside Ralpho. 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)98 miles away |
|---|---|
| Closer regional airport | Williamsport Regional Airport (IPT)32 miles away |
| Nearest city of 250,000+ | Philadelphia, PA96 miles away |
Straight-line distances from the center of Ralpho; 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.
Ralpho had 4,186 residents in the 2020 census, up 11% since 2000.
It’s the 682nd 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 48.2 inches of rain and melted snow fall in a typical year, with about 34 inches of snow.
Source: NOAA 1991–2020 climate normals, Bear Gap, 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).
21 doctors and other health care providers list an office in Ralpho.
Nearest hospitals
Providers with an office here
| Primary care doctors | 6 |
|---|---|
| Specialist doctors | 2 |
| Dentists | 2 |
| Nurse practitioners and physician assistants | 5 |
| Mental health providers | 2 |
| Physical and occupational therapists | 3 |
| Chiropractors | 1 |
| Pharmacies | 2 |
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.
Grocery stores (1 nearby)
Pharmacies
Libraries
Museums
Theaters and performance venues
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 Shamokin City, Shamokin Township, Zerbe, Cleveland, Coal, East Cameron, Rockefeller, West Cameron and Little Mahanoy.
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.