• Marty J. Jackley (R), 2009-Present
• Larry Long (R), 2003-2009
• Mark Barnett (R), 1991-2003
• Roger Tellinghuisen (R) 1987-1991
• Mark V. Meierhenry (R), 1979-1987
• William J. Janklow (R), 1975-1979
• Kermit A. Sande (D), 1973-1975
• Gordon J. Mydland (R), 1969-1973
• Frank L. Farrar (R), 1963-1969
• A.C. Miller (R), 1961-1963
• Parnell J. Donahue (D), 1959-1961
• Phil Saunders (R), 1955-1959
• Ralph A. Dunham (R), 1951-1955
• Sigurd Anderson (R), 1947-1951
• George T. Mickelson (R), 1943-1947
• Leo A. Temmey (R), 1939-1943
• Clair Roddewig (D), 1937-1939
• Walter Conway (R), 1933-1937
• Merrell Q. Sharpe (R), 1929-1933
• Buell F. Jones (R), 1923-1929
• Byron S. Payne (R), 1919-1923
• Clarence C. Caldwell (R), 1915-1919
• Royal C. Johnson (R), 1911-1915
• S.W. Clark (R), 1907-1911
• Philo Hall (R), 1903-1907
• A. W. Burtt (R), 1902-1903
• John L. Pyle (R), 1899-1902 *
• Melvin Grigsby (R), 1897-1899
• Coe I. Crawford (R), 1893-1897
• Robert Dollard (R), 1889-1893

* John L. Pyle died February 21, 1902, and A. W. Burtt was appointed to fill the vacancy.