Mercer County, Pennsylvania
Mercer County is a county in Pennsylvania. Its county FIPS code is 42085. Use the boundary map and neighboring areas below to check the jurisdiction you need.
- Official code
- 42085
- Representative coordinates
- 41.300014, -80.252786
- County type
- County
- County seat or government
- Mercer
- Resident population, July 2025
- 107,860
- Land area
- 1,741.866 km²
- Water area
- 25.964 km²
- State
- Pennsylvania
The representative point identifies this area. It is not a street address or a boundary survey.
Time zones in Mercer County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| America/New_York | UTC-05:00 in January; UTC-04:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Listed zones overlap the mapped area. A point lookup can distinguish sides of a boundary. Your device’s zone may differ.
Census ZIP areas
16057 · 16110 · 16113 · 16114 · 16121 · 16124 · 16125 · 16127 · 16130 · 16133 · 16134 · 16137 · 16142 · 16143 · 16145 · 16146 · 16148 · 16150 · 16151 · 16153 · 16154 · 16156 · 16159 · 16161 · 16311 · 16314 · 16342 · 16362
These statistical areas overlap the boundary. They are not delivery assignments; confirm mailing details with USPS ZIP Code Lookup.
Official county information
Mercer County government website ↗ is the next stop for county offices, tax, voting, jury and records information. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
Cities, towns and communities
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Clark borough, PA
- Farrell city, PA
- Fredonia borough, PA
- Greenville borough, PA
- Grove City borough, PA
- Hermitage city, PA
- Jackson Center borough, PA
- Jamestown borough, PA
- Lake Latonka CDP, PA
- Mercer borough, PA
- New Lebanon borough, PA
- Reynolds Heights CDP, PA
- Sandy Lake borough, PA
- Sharon city, PA
- Sharpsville borough, PA
- Sheakleyville borough, PA
- Stoneboro borough, PA
- West Middlesex borough, PA
Areas sharing the mapped boundary
These areas touch this mapped boundary.
Before using this answer on a form
Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.
Find the county at your current point, check its ZIP area, or find its physical time zone.