South Dakota U.S. Senators (2026)
SD · U.S. Senate Delegation
Joined the Union
November 2, 1889
Population (Est.)
919,818
Current U.S. Senators
Delegation Voting Summary
119th CongressAgreement Rate
97.6%
Mike Rounds and John Thune voted the same way on 860 of 881 shared votes
Both are Republicans
Mike Rounds
Senior Senator
Party Unity
98.9%
Missed Votes
0.9%
882 votes cast of 890 roll calls
John Thune
Junior Senator
Party Unity
97.9%
Missed Votes
0.1%
889 votes cast of 890 roll calls
Former Senators from South Dakota
All 25 former U.S. senators who represented South Dakota, most recent first.
- Tim Johnson 1997 – 2015
- Thomas Daschle 1987 – 2005
- Larry Pressler 1979 – 1997
- James Abdnor 1981 – 1987
- George McGovern 1963 – 1981
- James Abourezk 1973 – 1979
- Karl Mundt 1948 – 1973
- Joseph Bottum 1962 – 1963
- Francis Case 1951 – 1962
- Chan Gurney 1939 – 1951
- Vera Bushfield 1948
- Harlan Bushfield 1943 – 1948
- William Bulow 1931 – 1943
- Gladys Pyle 1938 – 1939
- Herbert Hitchcock 1936 – 1938
- Peter Norbeck 1921 – 1936
- William McMaster 1925 – 1931
- Thomas Sterling 1913 – 1925
- Edwin Johnson 1915 – 1921
- Coe Crawford 1909 – 1915
- Robert Gamble 1901 – 1913
- Alfred Kittredge 1901 – 1909
- James Kyle 1891 – 1901
- Richard Pettigrew 1889 – 1901
- Gideon Moody 1889 – 1891