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Mercer County, Pennsylvania
Mercer County sits on Pennsylvania's Ohio border midway between Pittsburgh and Cleveland, with Hermitage, Sharon, and Farrell forming the Shenango Valley and Grove City anchoring the east. Legacy metals manufacturing left an industrial-park inventory now competing for distribution tenants at the I-79 and I-80 crossroads, while Grove City's outlet center and college concentrate retail demand, so interchange proximity and brownfield status decide sites.
Open the live Mercer County map →
Mercer County at a glance
- 108,000Population (2025)
- MercerCounty seat
- 673 sq miLand area
- 160 / sq miDensity
- $60,000Median household income
- $165,000Median home value
What the live Mercer County map shows
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- City Boundaries: 48
- School Boundaries - Middle: 1
- School Boundaries: 13
- Congressional Districts: 1
- Emergency Services: 56
- Flood Zones: 2
- HUD: 24
- House Districts: 3
- Opportunity Zones: 2
- Parks & Golf: 48
- Schools: 67
- Senate Districts: 1
- Soils: 108
- Voter Precincts: 89
- Wetlands: 5
- Zip Codes: 30
- Development News: 3
Cities and towns in Mercer County
Clark Borough, Coolspring Township, Deer Creek Township, Delaware Township, East Lackawannock Township, Fairview Township, Farrell, Findley Township, Fredonia Borough, French Creek Township, Greene Township, Greenville Borough, Grove City Borough, Hempfield Township, Hermitage, Jackson Center Borough, Jackson Township, Jamestown Borough, Jefferson Township, Lackawannock Township, Lake Township, Liberty Township, Mercer Borough, Mill Creek Township, New Lebanon Borough, New Vernon Township, Otter Creek Township, Perry Township, Pine Township, Pymatuning Township, Salem Township, Sandy Creek Township, Sandy Lake Borough, Sandy Lake Township, Sharon, Sharpsville Borough, Sheakleyville Borough, Shenango Township, South Pymatuning Township, Springfield Township, Stoneboro Borough, Sugar Grove Township, West Middlesex Borough, West Salem Township, Wheatland Borough, Wilmington Township, Wolf Creek Township, Worth Township.