List of counties in South Dakota

There are 66 counties in the U.S. state of South Dakota with FIPS codes.

Counties of South Dakota
LocationState of South Dakota
Number66
Populations855 (Jones) – 206,930 (Minnehaha)
Areas412 square miles (1,070 km2) (Clay) – 3,471 square miles (8,990 km2) (Meade)
Government
Subdivisions

Todd County and Oglala Lakota County are the only counties in South Dakota which do not have their own county seats. Hot Springs in Fall River County serves as the administrative center for Oglala Lakota County. Winner in Tripp County serves as the administrative center for Todd County.[1] These are two of six counties in South Dakota which are entirely within an Indian reservation. (The other four counties are Bennett, Corson, Dewey, and Ziebach.)

South Dakota's postal abbreviation is SD and its FIPS state code is 46.

Table of counties

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County
FIPS code[2]County seat[3]Est.[3]Formed fromEtymologyPopulation[4]Area[3]Map
Aurora County003Plankinton1881Cragin and Wetmore CountiesAurora, Roman goddess of dawn2,782708 sq mi
(1,834 km2)
Beadle County005Huron1879Buchard, Clark, Kingsbury, and Spink CountiesWilliam Henry Harrison Beadle, chief surveyor of Dakota Territory19,5911,259 sq mi
(3,261 km2)
Bennett County007Martin1909Lugenbeel, Oglala Lakota, Washabaugh, and Washington CountiesGranville G. Bennett, justice of the Supreme Court for the Dakota Territory3,3051,185 sq mi
(3,069 km2)
Bon Homme County009Tyndall1862Unorganized territoryFrench phrase meaning "good man"7,065563 sq mi
(1,458 km2)
Brookings County011Brookings1862Unorganized territoryWilmot Brookings (1830 - 1905), Dakota Territory Supreme Court justice35,980794 sq mi
(2,056 km2)
Brown County013Aberdeen1879Beadle CountyAlfred Brown, territorial legislator37,7331,713 sq mi
(4,437 km2)
Brule County015Chamberlain1875Charles Mix CountyBrulé Sioux Native Americans5,311819 sq mi
(2,121 km2)
Buffalo County017Gann Valley1873Unorganized territoryAmerican Bison1,884471 sq mi
(1,220 km2)
Butte County019Belle Fourche1883Harding CountyButtes in the region10,8632,249 sq mi
(5,825 km2)
Campbell County021Mound City1873Buffalo CountyNorman B. Campbell, territorial legislator1,340736 sq mi
(1,906 km2)
Charles Mix County023Lake Andes1862Unorganized territoryCharles Eli Mix, commissioner of Indian Affairs9,2401,098 sq mi
(2,844 km2)
Clark County025Clark1873Hanson CountyNewton Clark, territorial legislator3,948958 sq mi
(2,481 km2)
Clay County027Vermillion1862Unorganized territoryHenry Clay (1777 - 1852), U.S. Senator from Kentucky and prominent 19th Century political figure15,431412 sq mi
(1,067 km2)
Codington County029Watertown1877Indian landsReverend G.S. Codington, territorial legislator28,971688 sq mi
(1,782 km2)
Corson County031McIntosh1909Indian landsDighton Corson, a Justice of the South Dakota Supreme Court3,7822,473 sq mi
(6,405 km2)
Custer County033Custer1875Indian landsGeneral George Armstrong Custer (1839 - 1876), key figure in the Indian Wars9,1171,558 sq mi
(4,035 km2)
Davison County035Mitchell1873Hanson CountyHenry C. Davison, prominent merchant and early settler19,922436 sq mi
(1,129 km2)
Day County037Webster1879Clark CountyMerritt H. Day, territorial legislator5,4511,029 sq mi
(2,665 km2)
Deuel County039Clear Lake1862Brookings CountyJacob S. Deuel, territorial legislator4,354624 sq mi
(1,616 km2)
Dewey County041Timber Lake1873Armstrong County and Indian landsWilliam P. Dewey, territorial surveyor-general5,2082,303 sq mi
(5,965 km2)
Douglas County043Armour1873Charles Mix CountyStephen A. Douglas (1813 - 1861), U.S. Senator from Illinois and advocate of popular sovereignty as a middle ground in the slavery debate2,838434 sq mi
(1,124 km2)
Edmunds County045Ipswich1873Buffalo CountyNewton Edmunds, Governor of Dakota Territory4,0571,146 sq mi
(2,968 km2)
Fall River County047Hot Springs1883Custer CountyFall River7,3931,740 sq mi
(4,507 km2)
Faulk County049Faulkton1873Unorganized territoryAndrew Jackson Faulk, Governor of Dakota Territory2,1511,000 sq mi
(2,590 km2)
Grant County051Milbank1873Codington and Deuel CountiesUlysses S. Grant (1822 - 1885), U.S. President and American Civil War general7,553682 sq mi
(1,766 km2)
Gregory County053Burke1862Unorganized territoryJohn Shaw Gregory, territorial legislator4,0181,016 sq mi
(2,631 km2)
Haakon County055Philip1914Stanley CountyKing Haakon VII of Norway1,8511,813 sq mi
(4,696 km2)
Hamlin County057Hayti1873Deuel CountyHannibal Hamlin, Vice-President and United States Senator from Maine6,451511 sq mi
(1,323 km2)
Hand County059Miller1873Buffalo CountyGeorge H. Hand, territorial legislator3,1071,437 sq mi
(3,722 km2)
Hanson County061Alexandria1873Buffalo and Deuel CountiesJoseph R. Hanson, army major in the Indian Wars and early settler3,471435 sq mi
(1,127 km2)
Harding County063Buffalo1909Unorganized territoryJ.A. Harding, Speaker of the House for Dakota Territory1,3242,671 sq mi
(6,918 km2)
Hughes County065Pierre1880Buffalo CountyAlexander Hughes, territorial legislator17,624741 sq mi
(1,919 km2)
Hutchinson County067Olivet1862Unorganized territoryJohn Hutchinson, territorial legislator7,394813 sq mi
(2,106 km2)
Hyde County069Highmore1873Buffalo CountyJames Hyde, territorial legislator1,186861 sq mi
(2,230 km2)
Jackson County071Kadoka1914Stanley CountyJ.R. Jackson, territorial legislator2,7761,869 sq mi
(4,841 km2)
Jerauld County073Wessington Springs1883Aurora CountyH.J. Jerauld, territorial legislator1,660530 sq mi
(1,373 km2)
Jones County075Murdo1916Lyman CountyGeorge Wallace Jones, territorial legislator855971 sq mi
(2,515 km2)
Kingsbury County077De Smet1873Hanson CountyGeorge W. Kingsbury and T.A. Kingsbury, brothers and territorial legislators5,276838 sq mi
(2,170 km2)
Lake County079Madison1873Brookings and Hanson countiesLakes within the county11,031563 sq mi
(1,458 km2)
Lawrence County081Deadwood1875Unorganized territoryJohn Lawrence (1839 - 1889), territorial legislator28,053800 sq mi
(2,072 km2)
Lincoln County083Canton1867Unorganized territoryAbraham Lincoln, the 16th President of the United States,[5] or, possibly, Lincoln County, Maine.73,238578 sq mi
(1,497 km2)
Lyman County085Kennebec1873Unorganized territoryW.P. Lyman, territorial legislator3,7051,640 sq mi
(4,248 km2)
Marshall County091Britton1885Day CountyMarshall Vincent, Day County Commissioner4,390839 sq mi
(2,173 km2)
McCook County087Salem1873Hanson CountyEdwin McCook, Secretary of Dakota Territory5,809575 sq mi
(1,489 km2)
McPherson County089Leola1873Buffalo CountyJames B. McPherson (1828 - 1864), Civil War general2,3341,137 sq mi
(2,945 km2)
Meade County093Sturgis1889Lawrence CountyGeorge Meade (1815 - 1872), Civil War general30,9543,471 sq mi
(8,990 km2)
Mellette County095White River1909Lyman CountyArthur C. Mellette, first Governor of South Dakota1,8511,307 sq mi
(3,385 km2)
Miner County097Howard1873Hanson CountyNelson Miner and Ephriam Miner, brothers and territorial legislators2,280570 sq mi
(1,476 km2)
Minnehaha County099Sioux Falls1862Unorganized territorySioux term for waterfall206,930809 sq mi
(2,095 km2)
Moody County101Flandreau1873Brookings and Minnehaha CountiesGideon C. Moody, Speaker of the House for Dakota Territory6,450520 sq mi
(1,347 km2)
Oglala Lakota County1021875Fall River CountyOglala Lakota tribe13,4342,094 sq mi
(5,423 km2)
Pennington County103Rapid City1875Unorganized territoryJohn L. Pennington (1829 - 1900), Governor of Dakota Territory115,9032,776 sq mi
(7,190 km2)
Perkins County105Bison1909Butte and Harding CountiesHenry E. Perkins, state senator2,8342,872 sq mi
(7,438 km2)
Potter County107Gettysburg1875Buffalo CountyJoel A. Potter, territorial legislator2,413866 sq mi
(2,243 km2)
Roberts County109Sisseton1883Grant CountyS.G. Roberts, territorial legislator10,2061,101 sq mi
(2,852 km2)
Sanborn County111Woonsocket1883Miner CountyGeorge W. Sanborn, president of the Milwaukee Railroad2,399569 sq mi
(1,474 km2)
Spink County115Redfield1873Hanson CountySolomon Spink, Secretary of Dakota Territory6,1661,504 sq mi
(3,895 km2)
Stanley County117Fort Pierre1873Unorganized territoryDavid S. Stanley, commander of Fort Sully3,0431,443 sq mi
(3,737 km2)
Sully County119Onida1873Potter CountyFort Sully, itself named after General Alfred Sully1,4941,007 sq mi
(2,608 km2)
Todd County1211909Meyer and Tripp CountiesJohn Blair Smith Todd, territorial delegate to Congress9,1991,388 sq mi
(3,595 km2)
Tripp County123Winner1873Unorganized territoryBartlett Tripp, Chief Justice of the Dakota Territorial Supreme Court5,6211,614 sq mi
(4,180 km2)
Turner County125Parker1871Lincoln CountyJohn W. Turner, territorial legislator9,027617 sq mi
(1,598 km2)
Union County127Elk Point1862Unorganized territoryThe union of the American states17,183460 sq mi
(1,191 km2)
Walworth County129Selby1873Buffalo CountyWalworth County, Wisconsin, itself named for Reuben Walworth5,269708 sq mi
(1,834 km2)
Yankton County135Yankton1862Unorganized territoryYankton Sioux Native Americans23,517522 sq mi
(1,352 km2)
Ziebach County137Dupree1911Armstrong, Schnasse, and Sterling CountiesFrank M. Ziebach, publisher and army major during the Indian Wars2,3221,962 sq mi
(5,082 km2)

Former names

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  • Shannon County: renamed Oglala Lakota County in 2015
  • Boreman County: Renamed Corson County in 1909
  • Mandan County: Renamed Lawrence County
  • Pratt County: Renamed Jones County

Former counties

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  • Armstrong County (1883–1952): Created by Dakota Territory as Pyatt County in 1883 from Cheyenne, Rusk (Dewey), and Stanley Counties. Renamed Armstrong in 1895. The western half was annexed to form part of the second Ziebach County, in 1911. The remainder was annexed into Dewey in 1952.
  • Ashmore County
  • Big Sioux County
  • Bramble County
  • Bruguier County
  • Burchard County
  • Burdick County
  • Cheyenne County
  • Choteau County: Abolished when it merged into Perkins County along with Martin, Rinehart and Wagner Counties.
  • Cole County: organized in 1862, was named for Austin Cole, who was a member of the first Territorial Legislature. Two years later, the boundaries were rearranged and the name changed to Union because of sentiment for the Union side of the civil war.
  • Cragin County
  • Delano County: Absorbed by Meade County
  • Ewing County (1889–1890): Created upon statehood. Abolished one year later, when it became the northern half of Harding County.
  • Forsythe County
  • Greely County, South Dakota
  • Jayne County
  • Lugenbeel County (1875–1909): Created by Dakota Territory from unorganized lands and Meyer and Pratt Counties in 1875. Abolished in 1909 when it became part of Bennett and Todd Counties.
  • Martin County: Abolished when it merged into Perkins County along with Choteau, Rinehart and Wagner Counties.
  • Meyer County
  • Midway County
  • Mills County
  • Nowlin County (1883–1898): Created by Dakota Territory in 1883 from Cheyenne and White River Counties. Abolished in 1898 when it became part of Haakon County.
  • Presho County: Absorbed by Lyman County
  • Pyatt County (1883–1895): Created by Dakota Territory from unorganized lands in 1883. Renamed Armstrong in 1895. Later divided between the revived Ziebach County and Dewey County.
  • Rinehart County: Abolished when it merged into Perkins County along with Choteau, Martin, and Wagner Counties.
  • Rusk County
  • Schnasse County (1883–1911): Created by Dakota Territory from unorganized lands and part of Boreman County in 1883. Later absorbed into Boreman and the revived Ziebach Counties
  • Scobey County: Absorbed by Meade County
  • Sterling County (1883–1911): Created by Dakota Territory from Cheyenne County. Abolished in 1911 when it became part of Haakon and Ziebach Counties
  • Stone County
  • Thompson County
  • Wagner County: Abolished when it merged into Perkins County along with Choteau, Martin, and Rinehart Counties.
  • Washabaugh County (1883–1983): South Dakota's most recent county to be eliminated. Created by Dakota Territory in 1883. Abolished in 1983 when it was merged with Jackson County.
  • Washington County (1888–1943): Abolished in 1943 when it was divided between Pennington and Shannon Counties.
  • Wetmore County
  • White River County
  • Wood County
  • Ziebach County (1889–1890): Created in 1889, upon statehood. Abolished in 1890, becoming the eastern portion of Pennington County. The name was revived in 1911, when a second Ziebach County was created from parts of Sterling, Schnasse and Pyatt Counties.

Population density map

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Map showing the density of South Dakota's counties

Darker colors indicate heavier density.

See also

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References

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