Allentown is a city in Lehigh County, Pennsylvania, home to about 125,976 people across 18 square miles. Its ZIP codes are 18101, 18102, 18103, 18104 and 18109.
Homes sold for a median of $193 per square foot across 5 ZIP codes in the three months ending August 2026, and all of them were seller’s markets.
All in Allentown
All in Allentown
Mostly Allentown; also Salisbury Township (Lehigh County) and Lower Macungie
Mostly Allentown; also South Whitehall and Upper Macungie
Mostly Allentown; also Hanover Township (Lehigh County) and Hanover Township (Northampton County)
Each card is that ZIP code’s whole market, including any part outside Allentown. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Allentown’s story and what everyday life there is like, for people thinking about moving in.
Are you a local agent who knows Allentown well? Agents who advertise here will be able to write the guide. Advertise on OfferBacked
| Nearest major airport | Philadelphia International Airport (PHL)52 miles away |
|---|---|
| Closer regional airport | Lehigh Valley International Airport (ABE)4 miles away |
| Nearest city of 250,000+ | Philadelphia, PA45 miles away |
Straight-line distances from the center of Allentown; 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.
Allentown had 125,845 residents in the 2020 census, up 18% since 2000.
It’s the 3rd largest of 2,568 towns in Pennsylvania by population.
Lehigh County grew from 93,893 residents in 1900 to 374,557 in 2020.
Lehigh 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 47.4 inches of rain and melted snow fall in a typical year, with about 33 inches of snow.
Source: NOAA 1991–2020 climate normals, Allentown Intl Ap, PA weather station (3 miles away).
201,146 jobs at 8,681 businesses in Lehigh County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
4,360 doctors and other health care providers list an office in Allentown’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 573 |
|---|---|
| Specialist doctors | 1,432 |
| Dentists | 189 |
| Nurse practitioners and physician assistants | 961 |
| Mental health providers | 747 |
| Physical and occupational therapists | 376 |
| Optometrists | 35 |
| Chiropractors | 47 |
| Pharmacies | 83 |
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 (58 nearby)
Grocery stores (23 nearby)
Pharmacies (8 nearby)
Libraries (2 nearby)
Museums (7 nearby)
Theaters and performance venues (10 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.
Established in 1762.
Notable people born here
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Allentown City SD, Arts Academy Elementary CS, Parkland SD and others. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Central El SchAllentown | Pre-K–5 | 694 | Public | 0.1 mi |
| Jackson Early Childhood CenterAllentown | Pre-K–K | 212 | Public | 0.9 mi |
| Mosser El SchAllentown | Pre-K–5 | 551 | Public | 1.6 mi |
| Muhlenberg El SchAllentown | Pre-K–5 | 606 | Public | 1.7 mi |
| Roosevelt El SchAllentown | Pre-K–5 | 631 | Public | 1.4 mi |
| Ruby Bridge Childhood CenterAllentown | Pre-K–K | 125 | Public | 0.8 mi |
| Sonia Sotomayor Dual Lang Immersion AcademyAllentown | Pre-K–5 | 112 | Public | 3.0 mi |
| Union Terrace El SchAllentown | Pre-K–5 | 674 | Public | 1.4 mi |
| Arts Academy Elementary CSAllentown | K–5 | 425 | Charter | 0.4 mi |
| Brigadier General Anna Mae Hays El SchAllentown | K–5 | 807 | Public | 0.6 mi |
| Cetronia SchAllentown | K–5 | 496 | Public | 3.4 mi |
| Executive Education Academy CSAllentown | K–12 | 1,497 | Charter | 1.6 mi |
| Hiram W Dodd El SchAllentown | K–5 | 627 | Public | 1.9 mi |
| Jefferson El SchAllentown | K–5 | 522 | Public | 1.0 mi |
| Kratzer SchAllentown | K–5 | 510 | Public | 2.5 mi |
| Lehigh Parkway El SchAllentown | K–5 | 276 | Public | 2.0 mi |
| Lincoln Leadership Academy CSAllentown | K–12 | 973 | Charter | 2.4 mi |
| Luis A. Ramos El SchAllentown | K–5 | 695 | Public | 0.9 mi |
| Parkway Manor SchAllentown | K–5 | 569 | Public | 4.0 mi |
| Ritter El SchAllentown | K–5 | 463 | Public | 2.5 mi |
| Roberto Clemente CSAllentown | K–12 | 619 | Charter | 0.6 mi |
| Salisbury El SchAllentown | K–4 | 461 | Public | 2.6 mi |
| Sheridan El SchAllentown | 1–5 | 591 | Public | 0.8 mi |
| Washington El SchAllentown | 1–5 | 362 | Public | 0.7 mi |
| Arts Academy CSAllentown | 5–8 | 296 | Charter | 3.1 mi |
| Salisbury MSAllentown | 5–8 | 448 | Public | 3.4 mi |
| Francis D Raub MSAllentown | 6–8 | 876 | Public | 1.2 mi |
| Harrison-Morton MSAllentown | 6–8 | 704 | Public | 0.8 mi |
| South Mountain MSAllentown | 6–8 | 972 | Public | 2.1 mi |
| Springhouse MSAllentown | 6–8 | 1,329 | Public | 3.9 mi |
And 6 more.
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Datzyk Montessori SchoolAllentown | Pre-K–1 | 15 | Nonsectarian | 2.9 mi |
| Grace Montessori SchoolAllentown | Pre-K–6 | 30 | Episcopal | 0.2 mi |
| Jewish Day School of the Lehigh ValleyAllentown | Pre-K–8 | 54 | Jewish | 2.1 mi |
| Lehigh Christian AcademyAllentown | Pre-K–12 | 313 | Christian (no specific denomination) | 3.3 mi |
| St John Vianney Regional SchoolAllentown | Pre-K–8 | 209 | Roman Catholic | 1.2 mi |
| St Thomas More SchoolAllentown | Pre-K–8 | 489 | Roman Catholic | 2.9 mi |
| Cai Learning AcademyAllentown | K–5 | 78 | Nonsectarian | 0.7 mi |
| Stepping Stones Christian SchoolAllentown | 2–11 | 12 | Mennonite | 1.0 mi |
| Allentow Central Catholic High School.Allentown | 9–12 | 627 | Roman Catholic | 0.5 mi |
| Mercy Special Learning CenterAllentown | Ungraded | 46 | Roman Catholic | 1.3 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.
Buying or selling around Allentown? Tell us what you need and when. No agents advertise here yet, so we’ll keep your request for up to 30 days and send it to local agents who join. No obligation, and you choose who to work with.
Loading map…
Shares ZIP codes with South Whitehall, Salisbury Township (Lehigh County), Upper Macungie, Lower Macungie, Hanover Township (Lehigh County), North Whitehall and Hanover Township (Northampton 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.