THE ROBERTSON COUNTY LAND BRIEF
Land in the
Southern Post Oak Savanna setting.
Robertson County has 855.2 square miles of land in Texas. 4 mapped landscape regions meet across Robertson County: Southern Post Oak Savanna, Floodplains and Low Terraces, San Antonio Prairie, among others.
The Post Oak Savanna's irregular plains form a transition between open prairie and the Piney Woods. Post oak, grassland and locally dense clay subsoils are characteristic regional elements.
Regional context: East Central Texas Plains ↗ · Regional mapping across the county footprint
Where the landscape changes
Robertson County intersects 4 mapped regional units. The largest mapped shares are:
- Southern Post Oak Savanna80.2%
- Floodplains and Low Terraces14.1%
- San Antonio Prairie5.4%
- Floodplains and Low Terraces0.3%
Texas Blackland Prairies in Robertson County
Fine-textured clay soils distinguish the Blackland Prairie landscape from surrounding Texas regions. Its historic prairie setting now includes a mixture of agricultural areas and expanding developed corridors.
Read the regional source ↗Finding your parcel within Robertson County
The atlas lists 4 cities, towns, townships, and Census communities associated with Robertson County, including Hearne, Calvert, Franklin. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Robertson County by land and water
The Census records 10.6 square miles of water within Robertson County, or 1.2% of its total area. That share is close to Robertson County’s 1.2%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Robertson County has 730.9 times the land area of nearby Franklin city (1.17 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Brazos County, Burleson County, Falls County, Leon County, Limestone County, Madison County, Milam County within Texas. A tract near one of these lines should be matched to the county identifier on its own records.

