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Oklahoma soil by county

Across Oklahoma's mapped land, shrink-swell clay limits houses without basements on 26% and a shallow water table limits basements on 17%.

Highest clay shares: Kay County (59%), Cotton County (54%), Kiowa County (54%), Coal County (54%), Craig County (53%). Highest water-table shares: Coal County (71%), Craig County (58%), Washington County (55%), Okmulgee County (53%), Tulsa County (52%).

Data as of September 22, 2026 · 77 counties

Adair County: 14%Alfalfa County: 8%Atoka County: 45%Beaver County: 6%Beckham County: 3%Blaine County: 16%Bryan County: 42%Caddo County: 6%Canadian County: 20%Carter County: 23%Cherokee County: 16%Choctaw County: 47%Cimarron County: 22%Cleveland County: 21%Coal County: 54%Comanche County: 38%Cotton County: 54%Craig County: 53%Creek County: 27%Custer County: 0%Delaware County: 5%Dewey County: 1%Ellis County: 3%Garfield County: 46%Garvin County: 30%Grady County: 7%Grant County: 48%Greer County: 26%Harmon County: 25%Harper County: 3%Haskell County: 32%Hughes County: 31%Jackson County: 35%Jefferson County: 17%Johnston County: 21%Kay County: 59%Kingfisher County: 25%Kiowa County: 54%Latimer County: 50%Le Flore County: 33%Lincoln County: 27%Logan County: 21%Love County: 17%Major County: 13%Marshall County: 30%Mayes County: 31%McClain County: 12%McCurtain County: 37%McIntosh County: 35%Murray County: 29%Muskogee County: 35%Noble County: 38%Nowata County: 48%Okfuskee County: 30%Oklahoma County: 21%Okmulgee County: 37%Osage County: 41%Ottawa County: 31%Pawnee County: 33%Payne County: 25%Pittsburg County: 44%Pontotoc County: 28%Pottawatomie County: 23%Pushmataha County: 27%Roger Mills County: 0%Rogers County: 38%Seminole County: 17%Sequoyah County: 6%Stephens County: 19%Texas County: 30%Tillman County: 47%Tulsa County: 47%Wagoner County: 34%Washington County: 52%Washita County: 1%Woods County: 13%Woodward County: 8%
Expansive clay: share of mapped land where shrink-swell clay limits houses without basementsunder 10%10-25%25-40%40-60%60%+
Adair County: 21%Alfalfa County: 10%Atoka County: 36%Beaver County: 7%Beckham County: 2%Blaine County: 6%Bryan County: 19%Caddo County: 2%Canadian County: 4%Carter County: 3%Cherokee County: 20%Choctaw County: 36%Cimarron County: 2%Cleveland County: 5%Coal County: 71%Comanche County: 4%Cotton County: 4%Craig County: 58%Creek County: 38%Custer County: 1%Delaware County: 23%Dewey County: 2%Ellis County: 4%Garfield County: 6%Garvin County: 6%Grady County: 2%Grant County: 10%Greer County: 3%Harmon County: 2%Harper County: 2%Haskell County: 36%Hughes County: 43%Jackson County: 10%Jefferson County: 1%Johnston County: 19%Kay County: 19%Kingfisher County: 4%Kiowa County: 1%Latimer County: 29%Le Flore County: 30%Lincoln County: 10%Logan County: 2%Love County: 2%Major County: 7%Marshall County: 1%Mayes County: 44%McClain County: 5%McCurtain County: 28%McIntosh County: 36%Murray County: 7%Muskogee County: 48%Noble County: 1%Nowata County: 49%Okfuskee County: 39%Oklahoma County: 3%Okmulgee County: 53%Osage County: 40%Ottawa County: 51%Pawnee County: 22%Payne County: 7%Pittsburg County: 41%Pontotoc County: 15%Pottawatomie County: 6%Pushmataha County: 26%Roger Mills County: 1%Rogers County: 42%Seminole County: 25%Sequoyah County: 26%Stephens County: 2%Texas County: 3%Tillman County: 2%Tulsa County: 52%Wagoner County: 48%Washington County: 55%Washita County: 1%Woods County: 8%Woodward County: 6%
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 Oklahoma

Select a column heading to sort.
Adair County 14% 21% 100% 5 1982
Alfalfa County 8% 10% 100% 1 1959
Atoka County 45% 36% 100% 2 1984
Beaver County 6% 7% 100% 0 1968
Beckham County 3% 2% 100% 1 1978
Blaine County 16% 6% 100% 0 1972
Bryan County 42% 19% 100% 1 1989
Caddo County 6% 2% 100% 6 1972
Canadian County 20% 4% 100% 28 1999
Carter County 23% 3% 100% 12 1978
Cherokee County 16% 20% 100% 38 1989
Choctaw County 47% 36% 100% 1 1982
Cimarron County 22% 2% 100% 0 1963
Cleveland County 21% 5% 100% 45 1990
Coal County 54% 71% 100% 0 1976
Comanche County 38% 4% 100% 213 1977
Cotton County 54% 4% 100% 3 1971
Craig County 53% 58% 100% 14 1974
Creek County 27% 38% 100% 6 1985
Custer County under 1% 1% 100% 6 1978
Delaware County 5% 23% 100% 37 1987
Dewey County 1% 2% 100% 0 1974
Ellis County 3% 4% 100% 0 1969
Garfield County 46% 6% 100% 6 1970
Garvin County 30% 6% 100% 17 1973
Grady County 7% 2% 100% 7 1982
Grant County 48% 10% 100% 0 1967
Greer County 26% 3% 100% 3 1964
Harmon County 25% 2% 100% 2 1964
Harper County 3% 2% 100% 0 1965
Haskell County 32% 36% 100% 0 1984
Hughes County 31% 43% 100% 0 1971
Jackson County 35% 10% 100% 2 1973
Jefferson County 17% 1% 100% 0 1970
Johnston County 21% 19% 100% 0 1983
Kay County 59% 19% 100% 34 1964
Kingfisher County 25% 4% 100% 3 1978
Kiowa County 54% 1% 100% 6 1962
Latimer County 50% 29% 100% 1 1983
Le Flore County 33% 30% 100% 13 1985
Lincoln County 27% 10% 100% 1 1986
Logan County 21% 2% 100% 12 1993
Love County 17% 2% 100% 0 1984
Major County 13% 7% 100% 2 1976
Marshall County 30% 1% 100% 0 1985
Mayes County 31% 44% 100% 30 1981
McClain County 12% 5% 100% 6 1997
McCurtain County 37% 28% 100% 21 1983
McIntosh County 35% 36% 100% 1 1983
Murray County 29% 7% 100% 1 1980
Muskogee County 35% 48% 100% 109 1978
Noble County 38% 1% 100% 2 1975
Nowata County 48% 49% 100% 5 1977
Okfuskee County 30% 39% 100% 0 1980
Oklahoma County 21% 3% 100% 97 1978
Okmulgee County 37% 53% 100% 30 1976
Osage County 41% 40% 100% 16 1980
Ottawa County 31% 51% 100% 73 1974
Pawnee County 33% 22% 100% 1 1978
Payne County 25% 7% 100% 10 1984
Pittsburg County 44% 41% 100% 6 1979
Pontotoc County 28% 15% 100% 7 1978
Pottawatomie County 23% 6% 100% 10 1980
Pushmataha County 27% 26% 100% 1 1982
Roger Mills County under 1% 1% 100% 0 1974
Rogers County 38% 42% 100% 38 1993
Seminole County 17% 25% 100% 11 1976
Sequoyah County 6% 26% 100% 12 1986
Stephens County 19% 2% 100% 13 1975
Texas County 30% 3% 94% 3 1976
Tillman County 47% 2% 100% 0 1963
Tulsa County 47% 52% 100% 264 1979
Wagoner County 34% 48% 100% 41 1995
Washington County 52% 55% 100% 38 1971
Washita County 1% 1% 100% 3 1964
Woods County 13% 8% 100% 0 1960
Woodward County 8% 6% 100% 3 1978

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.