THE JEFFERSON COUNTY LAND BRIEF
Land in the
Shale Hills setting.
Jefferson County has 1,111.6 square miles of land in Alabama. 5 mapped landscape regions meet across Jefferson County: Shale Hills, Southern Limestone/Dolomite Valleys and Low Rolling Hills, Southern Sandstone Ridges, among others.
Open low mountains and plateau edges form a landscape of wooded uplands and deeper ravines. Escarpments mark the transition toward both the Ridge and Valley and the Interior Plateau.
Regional context: Southwestern Appalachians ↗ · Regional mapping across the county footprint
Where the landscape changes
Jefferson County intersects 5 mapped regional units. The largest mapped shares are:
- Shale Hills54.2%
- Southern Limestone/Dolomite Valleys and Low Rolling Hills24.6%
- Southern Sandstone Ridges13.6%
- Southern Shale Valleys3.8%
- Dissected Plateau3.7%
Ridge and Valley in Jefferson 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 Jefferson County
The atlas lists 48 cities, towns, townships, and Census communities associated with Jefferson County, including Birmingham, Hoover, Bessemer. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Jefferson County by land and water
The Census records 12.6 square miles of water within Jefferson County, or 1.1% of its total area. That share is close to Jefferson County’s 1.1%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Jefferson County has 165.5 times the land area of nearby Forestdale CDP (6.72 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Bibb County, Blount County, Shelby County, St. Clair County, Tuscaloosa County, Walker County within Alabama. A tract near one of these lines should be matched to the county identifier on its own records.

