Buffalo Township (Union County) is a township in Union County, Pennsylvania, home to about 3,584 people across 30 square miles. It has no ZIP code of its own: it’s part of 17837 and 17844.
Homes sold for a median of $160 per square foot across 2 ZIP codes in the three months ending August 2026, and all of them were seller’s markets.
Mostly East Buffalo; part is in Buffalo Township (Union County)
Mostly Mifflinburg; part is in Buffalo Township (Union County)
Each card is that ZIP code’s whole market, including any part outside Buffalo Township (Union County). Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Buffalo Township (Union County)’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)117 miles away |
|---|---|
| Closer regional airport | Williamsport Regional Airport (IPT)20 miles away |
| Nearest city of 250,000+ | Philadelphia, PA116 miles away |
Straight-line distances from the center of Buffalo Township (Union County); 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.
Buffalo Township (Union County) had 3,593 residents in the 2020 census, up 12% since 2000.
It’s the 783rd largest of 2,568 towns in Pennsylvania by population.
Union County grew from 17,592 residents in 1900 to 42,681 in 2020.
Union 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 43.9 inches of rain and melted snow fall in a typical year, with about 29 inches of snow.
Source: NOAA 1991–2020 climate normals, Lewisburg, PA weather station (4 miles away).
16,233 jobs at 960 businesses in Union County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
511 doctors and other health care providers list an office in Buffalo Township (Union County)’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 44 |
|---|---|
| Specialist doctors | 119 |
| Dentists | 29 |
| Nurse practitioners and physician assistants | 135 |
| Mental health providers | 91 |
| Physical and occupational therapists | 72 |
| Optometrists | 11 |
| Chiropractors | 10 |
| Pharmacies | 14 |
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 (5 nearby)
Grocery stores (2 nearby)
Pharmacies (1 nearby)
Libraries (1 nearby)
Museums (1 nearby)
Theaters and performance venues
Counts are within about 3.5 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 Lewisburg Area SD, Mifflinburg Area SD. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Kelly El SchLewisburg | Pre-K–3 | 550 | Public | 4.1 mi |
| Mifflinburg El SchMifflinburg | K–2 | 376 | Public | 4.3 mi |
| Mifflinburg Area Intrmd SchMifflinburg | 3–5 | 381 | Public | 4.1 mi |
| Linntown El SchLewisburg | 4–5 | 270 | Public | 3.0 mi |
| Donald H Eichhorn MSLewisburg | 6–8 | 438 | Public | 2.9 mi |
| Mifflinburg Area MSMifflinburg | 6–8 | 445 | Public | 4.1 mi |
| Lewisburg HSLewisburg | 9–12 | 551 | Public | 3.9 mi |
| Mifflinburg Area SHSMifflinburg | 9–12 | 499 | Public | 4.7 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| River Valley Nature SchoolLewisburg | Pre-K–7 | 33 | Other religious | 3.2 mi |
| Morning Star Mennonite SchoolMifflinburg | 1–8 | 29 | Mennonite | 6.2 mi |
| Shady Grove Christian SchoolMifflinburg | 1–12 | 78 | Christian (no specific denomination) | 2.8 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 East Buffalo, Lewisburg, Kelly, Mifflinburg, West Buffalo, Limestone Township (Union County), Lewis Township (Union County), White Deer and Hartley.
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.