Mercer Borough is a borough in Mercer County, Pennsylvania, home to about 2,006 people across 1.2 square miles. It has no ZIP code of its own: it’s part of 16137.
Homes sold for a median of $156 per square foot in the three months ending August 2026, a balanced market.
Part is in Mercer Borough, part in Findley and Coolspring
Each card is that ZIP code’s whole market, including any part outside Mercer Borough. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Mercer Borough’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)51 miles away |
|---|---|
| Nearest city of 250,000+ | Pittsburgh, PA56 miles away |
| Nearest city of 1 million+ | Philadelphia, PA280 miles away |
Straight-line distances from the center of Mercer Borough; 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.
Mercer Borough had 1,982 residents in the 2020 census, down 17% since 2000.
It’s the 1217th 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 81°F in summer, and winter lows average 17°F. About 45.3 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Slippery Rock 1 Ssw, PA weather station (15 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).
71 doctors and other health care providers list an office in Mercer Borough.
Nearest hospitals
Providers with an office here
| Primary care doctors | 7 |
|---|---|
| Specialist doctors | 3 |
| Dentists | 2 |
| Nurse practitioners and physician assistants | 13 |
| Mental health providers | 35 |
| Physical and occupational therapists | 6 |
| Optometrists | 2 |
| Chiropractors | 3 |
| Pharmacies | 4 |
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.
Libraries (1 nearby)
Counts are within about 1 mile 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 Mercer Area SD, Mercer County Career Center. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Mercer Area El SchMercer | K–6 | 567 | Public | 0.8 mi |
| Mercer Area MSMercer | 7–8 | 136 | Public | 0.9 mi |
| Mercer Area SHSMercer | 9–12 | 282 | Public | 0.9 mi |
| Mercer County Career CenterMercer | 9–12 | 8 | Career and Technical | 1.5 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Creative Learning Christian SchoolMercer | Pre-K–12 | 78 | Christian (no specific denomination) | 0.5 mi |
| Hilltop Amish SchoolMercer | 1–8 | 22 | Amish | 6.0 mi |
| Orchard Hill SchoolMercer | 1–8 | 35 | Amish | 6.5 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 Findley, Coolspring, East Lackawannock, Jefferson Township (Mercer County), Lackawannock, Springfield Township (Mercer County), Fairview Township (Mercer County) and Jackson Township (Mercer 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.