THE SIMPSON COUNTY LAND BRIEF
Land in the
Western Pennyroyal Karst Plain setting.
Simpson County has 234.2 square miles of land in Kentucky. 2 mapped landscape regions meet across Simpson County: Western Pennyroyal Karst Plain, Eastern Highland Rim.
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.
Regional context: Interior Plateau ↗ · Regional mapping across the county footprint
Where the landscape changes
Simpson County intersects 2 mapped regional units. The largest mapped shares are:
- Western Pennyroyal Karst Plain96.5%
- Eastern Highland Rim3.5%
Finding your parcel within Simpson County
The atlas lists 1 cities, towns, townships, and Census communities associated with Simpson County, including Franklin. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Simpson County by land and water
The Census records 2.28 square miles of water within Simpson County, or 1% of its total area. That share is close to Simpson County’s 1%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Simpson County has 15.5 times the land area of nearby Franklin city (15.1 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Allen County, Logan County, Warren County within Kentucky. A tract near one of these lines should be matched to the county identifier on its own records.

