THE NATRONA COUNTY LAND BRIEF
Land in the
Rolling Sagebrush Steppe setting.
Natrona County has 5,340.5 square miles of land in Wyoming. 9 mapped landscape regions meet across Natrona County: Rolling Sagebrush Steppe, Casper Arch, Foothill Shrublands and Low Mountains, among others.
A broad dry basin is interrupted by hills and low mountains. Grassland and shrubland dominate the regional setting between the more heavily forested surrounding ranges.
Regional context: Wyoming Basin ↗ · Regional mapping across the county footprint
Where the landscape changes
Natrona County intersects 9 mapped regional units. The largest mapped shares are:
- Rolling Sagebrush Steppe42.9%
- Casper Arch19%
- Foothill Shrublands and Low Mountains15%
- Powder River Basin9.6%
- Salt Desert Shrub Basins5.1%
Northwestern Great Plains in Natrona County
Rolling semiarid plains are punctuated by buttes, badlands and river breaks. Much of the regional terrain developed on sandstone, siltstone and shale without the leveling influence of continental glaciers.
Read the regional source ↗Southern Rockies in Natrona County
Steep mountains rise through distinct vegetation bands, from lower grass and shrub country to conifers and alpine terrain. Elevation is a defining difference across Southern Rocky Mountain landscapes.
Read the regional source ↗Finding your parcel within Natrona County
The atlas lists 18 cities, towns, townships, and Census communities associated with Natrona County, including Casper Mountain, Casper, Antelope Hills. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Natrona County by land and water
The Census records 35.1 square miles of water within Natrona County, or 0.7% of its total area. That share is close to Natrona County’s 0.7%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Natrona County has 901.7 times the land area of nearby Powder River CDP (5.92 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Carbon County, Converse County, Fremont County, Johnson County, Washakie County within Wyoming. A tract near one of these lines should be matched to the county identifier on its own records.

