THE JOHNSON COUNTY LAND BRIEF
Land in the
Southern Sedimentary Ridges setting.
Johnson County has 298.4 square miles of land in Tennessee. 3 mapped landscape regions meet across Johnson County: Southern Sedimentary Ridges, Limestone Valleys and Coves, Southern Crystalline Ridges and Mountains.
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
Johnson County intersects 3 mapped regional units. The largest mapped shares are:
- Southern Sedimentary Ridges66.3%
- Limestone Valleys and Coves23.2%
- Southern Crystalline Ridges and Mountains10.5%
Finding your parcel within Johnson County
The atlas lists 2 cities, towns, townships, and Census communities associated with Johnson County, including Mountain City, Butler. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Johnson County by land and water
The Census records 4.25 square miles of water within Johnson County, or 1.4% of its total area. That share is close to Johnson County’s 1.4%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Johnson County has 88.6 times the land area of nearby Mountain City town (3.37 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Carter County, Sullivan County within Tennessee. A tract near one of these lines should be matched to the county identifier on its own records.

