THE TETON COUNTY LAND BRIEF
Land in the
Dissected Plateaus and Teton Basin setting.
Teton County has 449.1 square miles of land in Idaho. 4 mapped landscape regions meet across Teton County: Dissected Plateaus and Teton Basin, Partly Forested Mountains, Yellowstone Plateau, among others.
The Snake River Plain is lower and gentler than its surrounding mountains. Alluvial valleys, sagebrush-covered plains, low hills and scattered lava fields form its principal landscape patterns.
Regional context: Snake River Plain ↗ · Regional mapping across the county footprint
Where the landscape changes
Teton County intersects 4 mapped regional units. The largest mapped shares are:
- Dissected Plateaus and Teton Basin61.2%
- Partly Forested Mountains29.6%
- Yellowstone Plateau7.2%
- Alpine Zone2%
Middle Rockies in Teton County
Forested mountain ranges rise above grassy or shrubby intermountain valleys. The Middle Rockies combine alpine high country, partly wooded foothills and valleys supplied by mountain streams.
Read the regional source ↗Finding your parcel within Teton County
The atlas lists 3 cities, towns, townships, and Census communities associated with Teton County, including Driggs, Victor, Tetonia. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Teton County by land and water
The Census records 1.11 square miles of water within Teton County, or 0.2% of its total area. That share is close to Teton County’s 0.2%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Teton County has 787.9 times the land area of nearby Tetonia city (0.57 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Bonneville County, Fremont County, Madison County within Idaho. A tract near one of these lines should be matched to the county identifier on its own records.

