300px|thumb|South Dakotas countyn. Shannon County har bytt namn till Oglala Lakota County. Detta är en lista över de 66 countyn som finns i delstaten South Dakota i USA.National Association of Counties - Find a county
County Centralort (County Seat) GrundatAurora County Plankinton 1881Beadle County Huron 1879Bennett County Martin 1909Bon Homme County Tyndall 1862Brookings County Brookings 1862Brown County Aberdeen 1879Brule County Chamberlain 1875Buffalo County Gann Valley 1873Butte County Belle Fourche 1883Campbell County Mound City 1873Charles Mix County Lake Andes 1862Clark County Clark 1873Clay County Vermillion 1862Codington County Watertown 1877Corson County McIntosh 1909Custer County Custer 1875Davison County Mitchell 1873Day County Webster 1879Deuel County Clear Lake 1862Dewey County Timber Lake 1873Douglas County Armour 1873Edmunds County Ipswich 1873Fall River County Hot Springs 1883Faulk County Faulkton 1873Grant County Milbank 1873Gregory County Burke 1862Haakon County Philip 1914Hamlin County Hayti 1873Hand County Miller 1873Hanson County Alexandria 1873Harding County Buffalo 1909Hughes County Pierre 1880Hutchinson County Olivet 1862Hyde County Highmore 1873Jackson County Kadoka 1914Jerauld County Wessington Springs 1883Jones County Murdo 1916Kingsbury County De Smet 1873Lake County Madison 1873Lawrence County Deadwood 1875Lincoln County Canton 1867Lyman County Kennebec 1873Marshall County Britton 1885McCook County Salem 1873McPherson County Leola 1873Meade County Sturgis 1889Mellette County White River 1909Miner County Howard 1873Minnehaha County Sioux Falls 1862Moody County Flandreau 1873Oglala Lakota County - 1875Pennington County Rapid City 1875Perkins County Bison 1909Potter County Gettysburg 1875Roberts County Sisseton 1883Sanborn County Woonsocket 1883Spink County Redfield 1873Stanley County Fort Pierre 1873Sully County Onida 1873Todd County Mission 1909Tripp County Winner 1873Turner County Parker 1871Union County Elk Point 1862Walworth County Selby 1873Yankton County Yankton 1862Ziebach County Dupree 1911
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South Dakota South Dakotas countyn