THE ALLEGANY COUNTY LAND BRIEF
Land in the
Northern Dissected Ridges and Knobs setting.
Allegany County has 422.2 square miles of land in Maryland. 4 mapped landscape regions meet across Allegany County: Northern Dissected Ridges and Knobs, Uplands and Valleys of Mixed Land Use, Northern Sandstone Ridges, among others.
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.
Regional context: Ridge and Valley ↗ · Regional mapping across the county footprint
Where the landscape changes
Allegany County intersects 4 mapped regional units. The largest mapped shares are:
- Northern Dissected Ridges and Knobs52.4%
- Uplands and Valleys of Mixed Land Use23.1%
- Northern Sandstone Ridges22%
- Northern Limestone/Dolomite Valleys2.6%
Central Appalachians in Allegany County
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.
Read the regional source ↗Finding your parcel within Allegany County
The atlas lists 44 cities, towns, townships, and Census communities associated with Allegany County, including Cumberland, La Vale, Frostburg. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Allegany County by land and water
The Census records 5.68 square miles of water within Allegany County, or 1.3% of its total area. That share is close to Allegany County’s 1.3%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Allegany County has 652.5 times the land area of nearby Spring Gap CDP (0.65 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Garrett County, Washington County within Maryland. A tract near one of these lines should be matched to the county identifier on its own records.

