Wilmington Township (Mercer County) is a township in Mercer County, Pennsylvania, home to about 1,531 people across 13 square miles. It has no ZIP code of its own: it’s part of 16142.
Homes sold for a median of $153 per square foot in the three months ending August 2026, a seller’s market.
Mostly New Wilmington; part is in Wilmington Township (Mercer County)
Each card is that ZIP code’s whole market, including any part outside Wilmington Township (Mercer County). Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Wilmington Township (Mercer County)’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Pittsburgh International Airport (PIT)45 miles away |
|---|---|
| Nearest city of 250,000+ | Pittsburgh, PA52 miles away |
| Nearest city of 1 million+ | Philadelphia, PA283 miles away |
Straight-line distances from the center of Wilmington Township (Mercer 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.
Wilmington Township (Mercer County) had 1,420 residents in the 2020 census, up 29% since 2000.
It’s the 1428th largest of 2,568 towns in Pennsylvania by population.
Mercer County grew from 57,387 residents in 1900 to 110,652 in 2020.
Mercer 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 19°F. About 42 inches of rain and melted snow fall in a typical year, with about 28 inches of snow.
Source: NOAA 1991–2020 climate normals, New Castle 1 N, PA weather station (9 miles away).
40,948 jobs at 2,611 businesses in Mercer County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
42 doctors and other health care providers list an office in Wilmington Township (Mercer County).
Nearest hospitals
Providers with an office here
| Primary care doctors | 7 |
|---|---|
| Specialist doctors | 2 |
| Dentists | 1 |
| Nurse practitioners and physician assistants | 10 |
| Mental health providers | 11 |
| Physical and occupational therapists | 6 |
| Optometrists | 2 |
| Chiropractors | 3 |
| Pharmacies | 1 |
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 (1 nearby)
Grocery stores
Pharmacies
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 Wilmington Area SD. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Wilmington Area El SchNew Wilmington | K–4 | 357 | Public | 1.1 mi |
| Wilmington Area Upper El SchNew Wilmington | 5–6 | 142 | Public | 1.1 mi |
| Wilmington Area JSHSNew Wilmington | 7–12 | 444 | Public | 1.1 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Deer Run Amish SchoolNew Wilmington | 1–8 | 32 | Amish | 3.2 mi |
| Hillside Parochial SchoolNew Wilmington | 1–8 | 19 | Amish | 1.2 mi |
| Indian Run SchoolNew Wilmington | 1–8 | 34 | Amish | 3.6 mi |
| Shepherd SchoolNew Wilmington | 1–8 | 34 | Amish | 2.1 mi |
| Wood Lawn SchoolNew Wilmington | 1–8 | 28 | Amish | 2.3 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.
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Shares ZIP codes with New Wilmington, Wilmington Township (Lawrence County), Lackawannock, Pulaski Township (Lawrence County) and East Lackawannock.
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.