THE POLK COUNTY LAND BRIEF
Land in the
Southern Metasedimentary Mountains setting.
Polk County has 434.6 square miles of land in Tennessee. 6 mapped landscape regions meet across Polk County: Southern Metasedimentary Mountains, Southern Limestone/Dolomite Valleys and Low Rolling Hills, Broad Basins, among others.
Forested ridges, plateaus and high mountains extend through the Blue Ridge. Elevation, rainfall and sheltered coves create marked differences in forest communities across short distances.
Regional context: Blue Ridge ↗ · Regional mapping across the county footprint
Where the landscape changes
Polk County intersects 6 mapped regional units. The largest mapped shares are:
- Southern Metasedimentary Mountains55.4%
- Southern Limestone/Dolomite Valleys and Low Rolling Hills15.3%
- Broad Basins12.1%
- Southern Sedimentary Ridges9%
- Southern Shale Valleys4.6%
Ridge and Valley in Polk 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 Polk County
The atlas lists 7 cities, towns, townships, and Census communities associated with Polk County, including Delano, Benton, Ducktown. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Polk County by land and water
The Census records 7.69 square miles of water within Polk County, or 1.7% of its total area. That share is close to Polk County’s 1.7%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Polk County has 143.3 times the land area of nearby Benton town (3.03 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Bradley County, McMinn County, Monroe County within Tennessee. A tract near one of these lines should be matched to the county identifier on its own records.

