THE MERCER COUNTY LAND BRIEF
Land in the
Low Lime Drift Plain setting.
Mercer County has 672.5 square miles of land in Pennsylvania. 2 mapped landscape regions meet across Mercer County: Low Lime Drift Plain, Mosquito Creek/Pymatuning Lowlands.
Low rounded hills, glacial moraines, kettles and wetland areas define the Erie Drift Plain. Its terrain is more varied than nearby flatter farming regions and less rugged than the unglaciated plateaus.
Regional context: Erie Drift Plain ↗ · Regional mapping across the county footprint
Where the landscape changes
Mercer County intersects 2 mapped regional units. The largest mapped shares are:
- Low Lime Drift Plain99.3%
- Mosquito Creek/Pymatuning Lowlands0.7%
Finding your parcel within Mercer County
The atlas lists 49 cities, towns, townships, and Census communities associated with Mercer County, including West Salem, Delaware, Hermitage. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Mercer County by land and water
The Census records 10 square miles of water within Mercer County, or 1.5% of its total area. That share is close to Mercer County’s 1.5%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Mercer County has 1,883.9 times the land area of nearby Fredonia borough (0.36 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Butler County, Crawford County, Lawrence County, Venango County within Pennsylvania. A tract near one of these lines should be matched to the county identifier on its own records.