THE DECATUR COUNTY LAND BRIEF
Land in the
Northern Hilly Gulf Coastal Plain setting.
Decatur County has 333.9 square miles of land in Tennessee. 2 mapped landscape regions meet across Decatur County: Northern Hilly Gulf Coastal Plain, Western Highland Rim.
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
Decatur County intersects 2 mapped regional units. The largest mapped shares are:
- Northern Hilly Gulf Coastal Plain50.3%
- Western Highland Rim49.7%
Interior Plateau in Decatur County
Open hills, irregular plains and tablelands are developed on limestone and other sedimentary rocks. Oak-hickory woodland, local prairie and cedar-glade settings contribute to this diverse inland plateau.
Read the regional source ↗Finding your parcel within Decatur County
The atlas lists 3 cities, towns, townships, and Census communities associated with Decatur County, including Parsons, Scotts Hill, Decaturville. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Decatur County by land and water
The Census records 11 square miles of water within Decatur County, or 3.2% of its total area. That share is close to Decatur County’s 3.2%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Decatur County has 202.1 times the land area of nearby Decaturville town (1.65 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Benton County, Carroll County, Hardin County, Henderson County, Perry County, Wayne County within Tennessee. A tract near one of these lines should be matched to the county identifier on its own records.

