South Dakota

South Dakota has 66 Counties

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South Dakota Counties
211 E Prospect Ave
Pierre, SD 57501-2530
Phone: (605)224-4554
http://www.sdcountycommissioners.org

County NACo
Member
2010
Population
Square
Miles
County Seat Board
Size
Founded
Aurora 2,710 708 Plankinton   1881 
Beadle 17,398 1,259 Huron   1879 
Bennett 3,431 1,185 Martin   1909 
Bon Homme 7,070 564 Tyndall   1862 
Brookings 31,965 792 Brookings   1892 
Brown 36,531 1,713 Aberdeen   1879 
Brule 5,255 817 Chamberlain   1875 
Buffalo 1,912 471 Gann Valley   1873 
Butte 10,110 2,250 Belle Fourche   1883 
Campbell 1,466 734 Mound City   1873 
Charles Mix 9,129 1,097 Lake Andes   1862 
Clark 3,691 958 Clark   1873 
Clay 13,864 412 Vermillion   1862 
Codington 27,227 689 Watertown   1877 
Corson 4,050 2,470 McIntosh  1909 
Custer 8,216 1,557 Custer   1875 
Davison 19,504 436 Mitchell   1873 
Day 5,710 1,028 Webster   1879 
Deuel 4,364 623 Clear Lake   1862 
Dewey 5,301 2,302 Timber Lake   1873 
Douglas 3,002 432 Armour   1873 
Edmunds 4,071 1,126 Ipswich   1873 
Fall River 7,094 1,740 Hot Springs   1883 
Faulk 2,364 982 Faulkton   1873 
Grant 7,356 681 Milbank   1873 
Gregory 4,271 1,015 Burke   1862 
Haakon 1,937 1,811 Philip   1914 
Hamlin 5,903 507 Hayti   1873 
Hand 3,431 1,437 Miller   1873 
Hanson 3,331 435 Alexandria   1873 
Harding 1,255 2,671 Buffalo   1909 
Hughes 17,022 742 Pierre   1880 
Hutchinson 7,343 813 Olivet   1862 
Hyde 1,420 861 Highmore   1873 
Jackson 3,031 1,864 Kadoka   1914 
Jerauld 2,071 526 Wessington Springs   1883 
Jones 1,006 970 Murdo   1916 
Kingsbury 5,148 832 De Smet   1873 
Lake 11,200 563 Madison   1873 
Lawrence 24,097 800 Deadwood   1875 
Lincoln 44,828 577 Canton   1867 
Lyman 3,755 1,642 Kennebec   1873 
Marshall 4,656 838 Britton   1885 
McCook 5,618 574 Salem  1873 
McPherson 2,459 1,137 Leola   1873 
Meade 25,434 3,471 Sturgis   1889 
Mellette 2,048 1,307 White River   1909 
Miner 2,389 570 Howard   1873 
Minnehaha 169,468 807 Sioux Falls   1862 
Moody 6,486 519 Flandreau   1873 
Pennington 100,948 2,777 Rapid City   1875 
Perkins 2,982 2,870 Bison   1909 
Potter 2,329 861 Gettysburg   1875 
Roberts 10,149 1,101 Sisseton   1883 
Sanborn 2,355 569 Woonsocket   1883 
Shannon 13,586 2,094 Hot Springs   1875 
Spink 6,415 1,504 Redfield   1873 
Stanley 2,966 1,444 Fort Pierre   1873 
Sully 1,373 1,007 Onida   1873 
Todd 9,612 1,389 Winner   1909 
Tripp 5,644 1,612 Winner   1873 
Turner 8,347 617 Parker   1871 
Union 14,399 461 Elk Point   1862 
Walworth 5,438 709 Selby   1873 
Yankton 22,438 521 Yankton   1862 
Ziebach 2,801 1,961 Dupree   1911