Aurora County (1883 - Present)
Beadle County (1879 - Present)
Bennett County (1909 - Present)
Bon Homme County (1862 - Present)
Boreman County (1889 - 1909)
Brookings County (1873 - Present)
Brown County (1879 - Present)
Brule County (1883 - Present)
Buffalo County (1883 - Present)
Butte County (1889 - Present)
Campbell County (1883 - Present)
Charles Mix County (1875 - Present)
Choteau County (1883 - 1898)
Clark County (1885 - Present)
Clay County (1862 - Present)
Codington County (1877 - Present)
Corson County (1909 - Present)
Custer County (1883 - Present)
Davison County (1881 - Present)
Day County (1889 - Present)
Delano County (1883 - 1898)
Deuel County (1873 - Present)
Dewey County (1883 - Present)
Douglas County (1873 - Present)
Edmunds County (1885 - Present)
Ewing County (1889 - 1894)
Fall River County (1883 - Present)
Faulk County (1883 - Present)
Grant County (1889 - Present)
Gregory County (1882 - Present)
Haakon County (1914 - Present)
Hamlin County (1877 - Present)
Hand County (1879 - Present)
Hanson County (1881 - Present)
Harding County (1889 - Present)
Hughes County (1873 - Present)
Hutchinson County (1879 - Present)
Hyde County (1883 - Present)
Jackson County (1883 - Present)
Jerauld County (1883 - Present)
Jones County (1916 - Present)
Kingsbury County (1879 - Present)
Lake County (1873 - Present)
Lawrence County (1889 - Present)
Lincoln County (1871 - Present)
Lugenbeel County (1883 - 1909)
Lyman County (1873 - Present)
Marshall County (1885 - Present)
Martin County (1889 - 1898)
Mccook County (1879 - Present)
Mcpherson County (1885 - Present)
Meade County (1889 - Present)
Mellette County (1909 - Present)
Meyer County (1875 - 1909)
Miner County (1883 - Present)
Minnehaha County (1873 - Present)
Moody County (1873 - Present)
Nowlin County (1883 - 1898)
Pennington County (1877 - Present)
Perkins County (1908 - Present)
Potter County (1883 - Present)
Pratt County (1883 - 1909)
Presho County (1883 - 1907)
Pyatt County (1883 - 1952)
Rinehart County (1883 - 1898)
Roberts County (1885 - Present)
Sanborn County (1883 - Present)
Schnasse County (1889 - 1911)
Scobey County (1883 - 1898)
Shannon County (1883 - Present)
Spink County (1879 - Present)
Stanley County (1883 - Present)
Sterling County (1883 - 1911)
Sully County (1873 - Present)
Todd County (1909 - Present)
Todd County Original (1882 - 1897)
Tripp County (1882 - Present)
Turner County (1871 - Present)
Union County (1871 - Present)
Wagner County (1889 - 1898)
Walworth County (1873 - Present)
Washabaugh Ext County (1883 - Present)
Washington County (1883 - 1944)
Yankton County (1862 - Present)
Ziebach County (1911 - Present)
Ziebach County Original (1877 - 1898)