THE DALLAS COUNTY LAND BRIEF
Land in the
Flatwoods/Blackland Prairie Margins setting.
Dallas County has 978.7 square miles of land in Alabama. 5 mapped landscape regions meet across Dallas County: Flatwoods/Blackland Prairie Margins, Southeastern Floodplains and Low Terraces, Blackland Prairie, among others.
Irregular plains of sand, silt and clay support a mix of pine and hardwood landscapes. The region has more relief than the lower coastal plain, with generally gentle stream gradients.
Regional context: Southeastern Plains ↗ · Regional mapping across the county footprint
Where the landscape changes
Dallas County intersects 5 mapped regional units. The largest mapped shares are:
- Flatwoods/Blackland Prairie Margins25.4%
- Southeastern Floodplains and Low Terraces25%
- Blackland Prairie24.3%
- Fall Line Hills14.9%
- Southern Hilly Gulf Coastal Plain10.5%
Finding your parcel within Dallas County
The atlas lists 4 cities, towns, townships, and Census communities associated with Dallas County, including Valley Grande, Selma, Selmont-West Selmont. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Dallas County by land and water
The Census records 15.1 square miles of water within Dallas County, or 1.5% of its total area. That share is close to Dallas County’s 1.5%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Dallas County has 298.6 times the land area of nearby Selmont-West Selmont CDP (3.28 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Autauga County, Chilton County, Lowndes County, Marengo County, Perry County, Wilcox County within Alabama. A tract near one of these lines should be matched to the county identifier on its own records.

