THE MADISON COUNTY LAND BRIEF
Land in the
Southern Post Oak Savanna setting.
Madison County has 466.1 square miles of land in Texas. 3 mapped landscape regions meet across Madison County: Southern Post Oak Savanna, San Antonio Prairie, Floodplains and Low Terraces.
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
Madison County intersects 3 mapped regional units. The largest mapped shares are:
- Southern Post Oak Savanna88.1%
- San Antonio Prairie7.8%
- Floodplains and Low Terraces4.1%
Finding your parcel within Madison County
The atlas lists 3 cities, towns, townships, and Census communities associated with Madison County, including Madisonville, Midway, Normangee. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Madison County by land and water
The Census records 6.32 square miles of water within Madison County, or 1.3% of its total area. That share is close to Madison County’s 1.3%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Madison County has 111.6 times the land area of nearby Madisonville city (4.18 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Brazos County, Grimes County, Houston County, Leon County, Robertson County, Walker County within Texas. A tract near one of these lines should be matched to the county identifier on its own records.

