Hemlock is a township in Columbia County, Pennsylvania, home to about 2,396 people across 18 square miles. It has no ZIP code of its own: it’s part of 17815.
Homes sold for a median of $160 per square foot in the three months ending August 2026, a seller’s market.
Mostly Bloomsburg; part is in Hemlock
Each card is that ZIP code’s whole market, including any part outside Hemlock. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Hemlock’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)101 miles away |
|---|---|
| Closer regional airport | Williamsport Regional Airport (IPT)30 miles away |
| Nearest city of 250,000+ | Philadelphia, PA97 miles away |
Straight-line distances from the center of Hemlock; 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.
Hemlock had 2,214 residents in the 2020 census, up 18% since 2000.
It’s the 1087th 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 (14 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).
269 doctors and other health care providers list an office in Hemlock.
Nearest hospitals
Providers with an office here
| Primary care doctors | 42 |
|---|---|
| Specialist doctors | 47 |
| Dentists | 15 |
| Nurse practitioners and physician assistants | 52 |
| Mental health providers | 56 |
| Physical and occupational therapists | 32 |
| Optometrists | 9 |
| Chiropractors | 16 |
| Pharmacies | 9 |
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 (9 nearby)
Grocery stores (4 nearby)
Pharmacies (2 nearby)
Libraries (2 nearby)
Theaters and performance venues (2 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.
Public schools here are run by Bloomsburg Area SD, Central Columbia SD, Columbia-Montour Area Vocational-Technical School. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Beaver-Main El SchBloomsburg | K–5 | 95 | Public | 7.7 mi |
| Central Columbia El SchBloomsburg | K–4 | 705 | Public | 4.2 mi |
| Memorial El SchBloomsburg | K–5 | 405 | Public | 1.3 mi |
| W W Evans Memorial El SchBloomsburg | K–5 | 250 | Public | 2.5 mi |
| Central Columbia MSBloomsburg | 5–8 | 587 | Public | 3.8 mi |
| Bloomsburg Area MSBloomsburg | 6–8 | 380 | Public | 1.7 mi |
| Bloomsburg Area HSBloomsburg | 9–12 | 362 | Public | 1.7 mi |
| Central Columbia SHSBloomsburg | 9–12 | 601 | Public | 3.8 mi |
| Columbia-Montour Area Vocational-Technical SchoolBloomsburg | 9–12 | 609 | Career and Technical | 4.1 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Columbia County Christian SchoolBloomsburg | Pre-K–12 | 224 | Christian (no specific denomination) | 3.0 mi |
| St Columba Catholic SchoolBloomsburg | Pre-K–4 | 34 | Roman Catholic | 1.1 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Bloomsburg, Scott Township (Columbia County), South Centre, Mount Pleasant Township (Columbia County), Main, Madison Township (Columbia County), Montour, Beaver Township (Columbia County), North Centre and Orange.
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.