THE FAYETTE COUNTY LAND BRIEF
Land in the
Forested Hills and Mountains setting.
Fayette County has 790.8 square miles of land in Pennsylvania. 4 mapped landscape regions meet across Fayette County: Forested Hills and Mountains, Monongahela Transition Zone, Pittsburgh Low Plateau, among others.
A rugged, deeply cut plateau of sandstone, shale and related rocks supports extensive forest. High hills and low mountains distinguish this Appalachian landscape from smoother neighboring regions.
Regional context: Central Appalachians ↗ · Regional mapping across the county footprint
Where the landscape changes
Fayette County intersects 4 mapped regional units. The largest mapped shares are:
- Forested Hills and Mountains40.1%
- Monongahela Transition Zone28.3%
- Pittsburgh Low Plateau19.2%
- Uplands and Valleys of Mixed Land Use12.4%
Western Allegheny Plateau in Fayette County
Rounded wooded hills and intervening valleys form an unglaciated plateau landscape. Valley floors contain much of the region's open land, contrasting with its more forested slopes.
Read the regional source ↗Finding your parcel within Fayette County
The atlas lists 68 cities, towns, townships, and Census communities associated with Fayette County, including Wharton, Dunbar, Springfield. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Fayette County by land and water
The Census records 7.97 square miles of water within Fayette County, or 1% of its total area. That share is close to Fayette County’s 1%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Fayette County has 769.2 times the land area of nearby Lemont Furnace CDP (1.03 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Greene County, Somerset County, Washington County, Westmoreland County within Pennsylvania. A tract near one of these lines should be matched to the county identifier on its own records.

