THE PUTNAM COUNTY LAND BRIEF
Land in the
Loamy High Lime Till Plains setting.
Putnam County has 480.5 square miles of land in Indiana. 4 mapped landscape regions meet across Putnam County: Loamy High Lime Till Plains, Crawford-Mammoth Cave Uplands, Mitchell Plain, among others.
Rolling glacial till plains are interrupted by end moraines and areas of older, more dissected deposits. The historical landscape had more tree cover than the Central Corn Belt to the west.
Regional context: Eastern Corn Belt Plains ↗ · Regional mapping across the county footprint
Where the landscape changes
Putnam County intersects 4 mapped regional units. The largest mapped shares are:
- Loamy High Lime Till Plains58.4%
- Crawford-Mammoth Cave Uplands26.4%
- Mitchell Plain8.8%
- Glaciated Wabash Lowlands6.5%
Interior Plateau in Putnam 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 ↗Interior River Valleys and Hills in Putnam County
Broad terraced river valleys contrast with wooded slopes and dissected glacial plains. Bottomland settings and upland oak landscapes occur close together across the Interior River Valleys and Hills.
Read the regional source ↗Finding your parcel within Putnam County
The atlas lists 23 cities, towns, townships, and Census communities associated with Putnam County, including Washington, Cloverdale, Jefferson. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Putnam County by land and water
The Census records 2.16 square miles of water within Putnam County, or 0.4% of its total area. That share is close to Putnam County’s 0.4%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Putnam County has 14 times the land area of nearby Greencastle township (34.3 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Clay County, Hendricks County, Montgomery County, Morgan County, Owen County, Parke County within Indiana. A tract near one of these lines should be matched to the county identifier on its own records.

