THE MERCER COUNTY LAND BRIEF
Land in the
Greenbriar Karst setting.
Mercer County has 419 square miles of land in West Virginia. 4 mapped landscape regions meet across Mercer County: Greenbriar Karst, Dissected Appalachian Plateau, Southern Sandstone Ridges, 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
Mercer County intersects 4 mapped regional units. The largest mapped shares are:
- Greenbriar Karst56.2%
- Dissected Appalachian Plateau34.1%
- Southern Sandstone Ridges8%
- Southern Limestone/Dolomite Valleys and Low Rolling Hills1.6%
Ridge and Valley in Mercer County
Long, roughly parallel ridges and valleys follow folded and faulted rock layers. Limestone valleys, sandstone ridges and other geologic contrasts produce varied terrain and numerous regional springs and caves.
Read the regional source ↗Finding your parcel within Mercer County
The atlas lists 10 cities, towns, townships, and Census communities associated with Mercer County, including Bluefield, Bluewell, Princeton. 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 1.72 square miles of water within Mercer County, or 0.4% of its total area. That share is close to Mercer County’s 0.4%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Mercer County has 139 times the land area of nearby Princeton city (3.01 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets McDowell County, Raleigh County, Summers County, Wyoming County within West Virginia. A tract near one of these lines should be matched to the county identifier on its own records.

