THE HARRISON COUNTY LAND BRIEF
Land in the
Tertiary Uplands setting.
Harrison County has 900.1 square miles of land in Texas. 2 mapped landscape regions meet across Harrison County: Tertiary Uplands, Floodplains and Low Terraces.
The Piney Woods occupy irregular plains at the western edge of the southern forest belt. Pine and hardwood landscapes alternate with wider river corridors such as the Red River valley.
Regional context: South Central Plains ↗ · Regional mapping across the county footprint
Where the landscape changes
Harrison County intersects 2 mapped regional units. The largest mapped shares are:
- Tertiary Uplands95.4%
- Floodplains and Low Terraces4.6%
Finding your parcel within Harrison County
The atlas lists 7 cities, towns, townships, and Census communities associated with Harrison County, including Longview, Marshall, Hallsville. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Harrison County by land and water
The Census records 15.7 square miles of water within Harrison County, or 1.7% of its total area. That share is close to Harrison County’s 1.7%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Harrison County has 30.2 times the land area of nearby Marshall city (29.8 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Gregg County, Marion County, Panola County, Rusk County, Upshur County within Texas. A tract near one of these lines should be matched to the county identifier on its own records.

