THE TETON COUNTY LAND BRIEF
Land in the
Yellowstone Plateau setting.
Teton County has 3,996.8 square miles of land in Wyoming. 10 mapped landscape regions meet across Teton County: Yellowstone Plateau, Mid-elevation Sedimentary Mountains, Sedimentary Subalpine Zone, among others.
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.
Regional context: Middle Rockies ↗ · Regional mapping across the county footprint
Where the landscape changes
Teton County intersects 10 mapped regional units. The largest mapped shares are:
- Yellowstone Plateau32%
- Mid-elevation Sedimentary Mountains24.8%
- Sedimentary Subalpine Zone18.4%
- High Elevation Valleys10%
- Alpine Zone7.6%
Snake River Plain in Teton County
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.
Read the regional source ↗Finding your parcel within Teton County
The atlas lists 9 cities, towns, townships, and Census communities associated with Teton County, including Hoback, Wilson, South Park. 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 220.4 square miles of water within Teton County, or 5.2% of its total area. That share is close to Teton County’s 5.2%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Teton County has 9,448.8 times the land area of nearby Kelly CDP (0.42 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Fremont County, Lincoln County, Park County, Sublette County within Wyoming. A tract near one of these lines should be matched to the county identifier on its own records.

