This list provides information about all 66 counties of South Dakota, including details such as their area, county seat, population, and established year. It is available in various file formats, such as MS Excel, PDF, CSV, and Zip, which contain all formats.
S.No.,County,FIPS code,County seat,Area,Population,Established Year,Formed from1,Aurora County,003,Plankinton,"708sqmi(1,834km)","2,748",1881,Cragin and Wetmore Counties2,Beadle County,005,Huron,"1,259sqmi(3,261km)","19,121",1879,"Buchard, Clark, Kingsbury, and Spink Counties"3,Bennett County,007,Martin,"1,185sqmi(3,069km)","3,406",1909,"Lugenbeel, Oglala Lakota, Washabaugh, and Washington Counties"4,Bon Homme County,009,Tyndall,"563sqmi(1,458km)","7,014",1862,Unorganized territory5,Brookings County,011,Brookings,"794sqmi(2,056km)","34,639",1862,Unorganized territory6,Brown County,013,Aberdeen,"1,713sqmi(4,437km)","38,101",1879,Beadle County7,Brule County,015,Chamberlain,"819sqmi(2,121km)","5,242",1875,Charles Mix County8,Buffalo County,017,Gann Valley,"471sqmi(1,220km)","1,923",1873,Unorganized territory9,Butte County,019,Belle Fourche,"2,249sqmi(5,825km)","10,456",1883,Harding County10,Campbell County,021,Mound City,"736sqmi(1,906km)","1,380",1873,Buffalo County11,Charles Mix County,023,Lake Andes,"1,098sqmi(2,844km)","9,163",1862,Unorganized territory12,Clark County,025,Clark,"958sqmi(2,481km)","3,855",1873,Hanson County13,Clay County,027,Vermillion,"412sqmi(1,067km)","15,150",1862,Unorganized territory14,Codington County,029,Watertown,"688sqmi(1,782km)","28,427",1877,Indian lands15,Corson County,031,McIntosh,"2,473sqmi(6,405km)","3,872",1909,Indian lands16,Custer County,033,Custer,"1,558sqmi(4,035km)","8,609",1875,Indian lands17,Davison County,035,Mitchell,"436sqmi(1,129km)","19,878",1873,Hanson County18,Day County,037,Webster,"1,029sqmi(2,665km)","5,414",1879,Clark County19,Deuel County,039,Clear Lake,"624sqmi(1,616km)","4,272",1862,Brookings County20,Dewey County,041,Timber Lake,"2,303sqmi(5,965km)","5,246",1873,Armstrong County and Indian lands21,Douglas County,043,Armour,"434sqmi(1,124km)","2,821",1873,Charles Mix County22,Edmunds County,045,Ipswich,"1,146sqmi(2,968km)","4,033",1873,Buffalo County23,Fall River County,047,Hot Springs,"1,740sqmi(4,507km)","7,202",1883,Custer County24,Faulk County,049,Faulkton,"1,000sqmi(2,590km)","2,137",1873,Unorganized territory25,Grant County,051,Milbank,"682sqmi(1,766km)","7,519",1873,Codington and Deuel Counties26,Gregory County,053,Burke,"1,016sqmi(2,631km)","3,977",1862,Unorganized territory27,Haakon County,055,Philip,"1,813sqmi(4,696km)","1,835",1914,Stanley County28,Hamlin County,057,Hayti,"511sqmi(1,323km)","6,255",1873,Deuel County29,Hand County,059,Miller,"1,437sqmi(3,722km)","3,095",1873,Buffalo County30,Hanson County,061,Alexandria,"435sqmi(1,127km)","3,505",1873,Buffalo and Deuel Counties31,Harding County,063,Buffalo,"2,671sqmi(6,918km)","1,327",1909,Unorganized territory32,Hughes County,065,Pierre,"741sqmi(1,919km)","17,694",1880,Buffalo County33,Hutchinson County,067,Olivet,"813sqmi(2,106km)","7,411",1862,Unorganized territory34,Hyde County,069,Highmore,"861sqmi(2,230km)","1,236",1873,Buffalo County35,Jackson County,071,Kadoka,"1,869sqmi(4,841km)","2,878",1914,Stanley County36,Jerauld County,073,Wessington Springs,"530sqmi(1,373km)","1,636",1883,Aurora County37,Jones County,075,Murdo,"971sqmi(2,515km)",879,1916,Lyman County38,Kingsbury County,077,De Smet,"838sqmi(2,170km)","5,192",1873,Hanson County39,Lake County,079,Madison,"563sqmi(1,458km)","10,851",1873,Brookings and Hanson counties40,Lawrence County,081,Deadwood,"800sqmi(2,072km)","26,165",1875,Unorganized territory41,Lincoln County,083,Canton,"578sqmi(1,497km)","67,870",1867,Unorganized territory42,Lyman County,085,Kennebec,"1,640sqmi(4,248km)","3,764",1873,Unorganized territory43,Marshall County,091,Britton,"839sqmi(2,173km)","4,304",1885,Day County44,McCook County,087,Salem,"575sqmi(1,489km)","5,695",1873,Hanson County45,McPherson County,089,Leola,"1,137sqmi(2,945km)","2,420",1873,Buffalo County46,Meade County,093,Sturgis,"3,471sqmi(8,990km)","30,173",1889,Lawrence County47,Mellette County,095,White River,"1,307sqmi(3,385km)","1,908",1909,Lyman County48,Miner County,097,Howard,"570sqmi(1,476km)","2,314",1873,Hanson County49,Minnehaha County,099,Sioux Falls,"809sqmi(2,095km)","199,685",1862,Unorganized territory50,Moody County,101,Flandreau,"520sqmi(1,347km)","6,315",1873,Brookings and Minnehaha Counties51,Oglala Lakota County,102,,"2,094sqmi(5,423km)","13,586",1875,Fall River County52,Pennington County,103,Rapid City,"2,776sqmi(7,190km)","111,806",1875,Unorganized territory53,Perkins County,105,Bison,"2,872sqmi(7,438km)","2,819",1909,Butte and Harding Counties54,Potter County,107,Gettysburg,"866sqmi(2,243km)","2,475",1875,Buffalo County55,Roberts County,109,Sisseton,"1,101sqmi(2,852km)","10,163",1883,Grant County56,Sanborn County,111,Woonsocket,"569sqmi(1,474km)","2,378",1883,Miner County57,Spink County,115,Redfield,"1,504sqmi(3,895km)","6,269",1873,Hanson County58,Stanley County,117,Fort Pierre,"1,443sqmi(3,737km)","3,032",1873,Unorganized territory59,Sully County,119,Onida,"1,007sqmi(2,608km)","1,476",1873,Potter County60,Todd County,121,,"1,388sqmi(3,595km)","9,286",1909,Meyer and Tripp Counties61,Tripp County,123,Winner,"1,614sqmi(4,180km)","5,569",1873,Unorganized territory62,Turner County,125,Parker,"617sqmi(1,598km)","8,708",1871,Lincoln County63,Union County,127,Elk Point,"460sqmi(1,191km)","16,872",1862,Unorganized territory64,Walworth County,129,Selby,"708sqmi(1,834km)","5,248",1873,Buffalo County65,Yankton County,135,Yankton,"522sqmi(1,352km)","23,297",1862,Unorganized territory66,Ziebach County,137,Dupree,"1,962sqmi(5,082km)","2,380",1911,"Armstrong, Schnasse, and Sterling Counties",,,,,,,https://www.downloadexcelfiles.com/,,,,,,,