Bethlehem Township is a township in Northampton County, Pennsylvania, home to about 26,237 people across 14 square miles. Its ZIP code is 18020, and parts of 18045 are in Bethlehem Township too.
Homes sold for a median of $211 per square foot in the three months ending August 2026, a seller’s market.
Mostly Bethlehem Township; also Lower Nazareth
Mostly Palmer; part is in Bethlehem Township
Each card is that ZIP code’s whole market, including any part outside Bethlehem Township. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Bethlehem Township’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)56 miles away |
|---|---|
| Closer regional airport | Lehigh Valley International Airport (ABE)7 miles away |
| Nearest city of 250,000+ | Philadelphia, PA47 miles away |
Straight-line distances from the center of Bethlehem Township; 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.
Bethlehem Township had 25,868 residents in the 2020 census, up 22% since 2000.
It’s the 63rd largest of 2,568 towns in Pennsylvania by population.
Northampton County grew from 99,687 residents in 1900 to 312,951 in 2020.
Northampton County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 86°F in summer, and winter lows average 22°F. About 51.2 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Phillipsburg-Easton Brg, NJ weather station (6 miles away).
121,192 jobs at 6,529 businesses in Northampton County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
287 doctors and other health care providers list an office in Bethlehem Township.
Nearest hospitals
Providers with an office here
| Primary care doctors | 72 |
|---|---|
| Specialist doctors | 23 |
| Dentists | 23 |
| Nurse practitioners and physician assistants | 32 |
| Mental health providers | 73 |
| Physical and occupational therapists | 48 |
| Optometrists | 2 |
| Chiropractors | 14 |
| Pharmacies | 5 |
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 (32 nearby)
Grocery stores (8 nearby)
Pharmacies (5 nearby)
Libraries (2 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.
Public schools here are run by Bethlehem Area SD, Bethlehem Area Vocational-Technical School. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Miller Heights El SchBethlehem | K–5 | 328 | Public | 2.2 mi |
| Bethlehem Area Vocational-Technical SchoolBethlehem | 9–12 | 18 | Career and Technical | 1.3 mi |
| Freedom HSBethlehem | 9–12 | 1,792 | Public | 1.5 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Bethlehem Christian SchoolBethlehem | Pre-K–12 | 257 | Christian (no specific denomination) | 1.5 mi |
| Our Lady of Perpetual Help SchoolBethlehem | K–8 | 230 | Roman Catholic | 1.7 mi |
| The Goddard SchoolBethlehem | K | 14 | Nonsectarian | 1.2 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 Palmer, Lower Nazareth, Easton and Tatamy.
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.