Centralia is a borough in Columbia County, Pennsylvania, home to about 1 people across 0.2 square miles. It has no ZIP code of its own: it’s part of 17888 and 17921.
Homes sold for a median of $109 per square foot across 2 ZIP codes in the three months ending August 2026, and 0 of 2 were seller’s markets.
Mostly Conyngham Township (Columbia County); part is in Centralia
Mostly Butler Township (Schuylkill County); part is in Centralia
Each card is that ZIP code’s whole market, including any part outside Centralia. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Centralia’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)88 miles away |
|---|---|
| Closer regional airport | Williamsport Regional Airport (IPT)41 miles away |
| Nearest city of 250,000+ | Philadelphia, PA86 miles away |
Straight-line distances from the center of Centralia; 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.
Centralia had 5 residents in the 2020 census, down 76% since 2000.
It’s the 2568th largest of 2,568 towns in Pennsylvania by population.
Columbia County grew from 39,896 residents in 1900 to 64,727 in 2020.
Columbia 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 (6 miles away).
22,886 jobs at 1,428 businesses in Columbia County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
28 doctors and other health care providers list an office in Centralia’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 6 |
|---|---|
| Specialist doctors | 2 |
| Dentists | 1 |
| Nurse practitioners and physician assistants | 7 |
| Mental health providers | 6 |
| Physical and occupational therapists | 4 |
| Optometrists | 1 |
| Chiropractors | 1 |
| Pharmacies | 4 |
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
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.
Public schools here are run by North Schuylkill SD. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| North Schuylkill El SchAshland | K–6 | 1,064 | Public | 5.5 mi |
| North Schuylkill JSHSAshland | 7–12 | 1,003 | Public | 5.3 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 Butler Township (Schuylkill County), Ashland Borough, Barry and Conyngham Township (Columbia 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.