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Wyoming soil by county

Across Wyoming's mapped land, shrink-swell clay limits houses without basements on 12% and a shallow water table limits basements on 3%.

Highest clay shares: Crook County (46%), Weston County (27%), Campbell County (22%), Sheridan County (21%), Lincoln County (19%). Highest water-table shares: Sublette County (13%), Park County (9%), Albany County (7%), Teton County (6%), Carbon County (5%).

Data as of September 22, 2026 · 23 counties

Albany County: 5%Big Horn County: 12%Campbell County: 22%Carbon County: 9%Converse County: 16%Crook County: 46%Fremont County: 4%Goshen County: 1%Hot Springs County: 17%Johnson County: 18%Laramie County: 1%Lincoln County: 19%Natrona County: 17%Niobrara County: 10%Park County: 12%Platte County: 0%Sheridan County: 21%Sublette County: 8%Sweetwater County: 3%Teton County: 7%Uinta County: no dataWashakie County: 5%Weston County: 27%
Expansive clay: share of mapped land where shrink-swell clay limits houses without basementsunder 10%10-25%25-40%40-60%60%+
Albany County: 7%Big Horn County: 4%Campbell County: 1%Carbon County: 5%Converse County: 1%Crook County: 0%Fremont County: 3%Goshen County: 2%Hot Springs County: 3%Johnson County: 1%Laramie County: 2%Lincoln County: 5%Natrona County: 1%Niobrara County: 1%Park County: 9%Platte County: 2%Sheridan County: 1%Sublette County: 13%Sweetwater County: 0%Teton County: 6%Uinta County: no dataWashakie County: 2%Weston County: 1%
High water table: share of mapped land where a shallow water table limits basementsunder 10%10-25%25-40%40-60%60%+

Every county in Wyoming

Select a column heading to sort.
Albany County 5% 7% 100% 4 1978
Big Horn County 12% 4% 100% 1 1968
Campbell County 22% 1% 100% 0 1991
Carbon County 9% 5% 100% 0 1973
Converse County 16% 1% 100% 4 1978
Crook County 46% under 1% 100% 0 1986
Fremont County 4% 3% 94% 7 1978
Goshen County 1% 2% 100% 5 1971
Hot Springs County 17% 3% 100% 0 1974
Johnson County 18% 1% 100% 0 1984
Laramie County 1% 2% 100% 15 1980
Lincoln County 19% 5% 92% 4 1988
Natrona County 17% 1% 100% 7 1977
Niobrara County 10% 1% 100% 0 1962
Park County 12% 9% 84% 2 1983
Platte County under 1% 2% 100% 1 1976
Sheridan County 21% 1% 100% 16 1983
Sublette County 8% 13% 42% 0 1985
Sweetwater County 3% under 1% 100% 1 1980
Teton County 7% 6% 12% 5 1989
Uinta County n/a n/a 100% 1 1984
Washakie County 5% 2% 100% 1 1972
Weston County 27% 1% 100% 0 1974

How these shares are counted

Shares are of mapped land in USDA's soil survey (SSURGO), weighted by each soil's share of every map unit. Drought is the US Drought Monitor's D1-or-worse share on the September 22, 2026 map. Flood losses are FEMA NFIP records since 2016. Sources and methods.