| # | Office Holder | Party | Tenure |
|---|---|---|---|
| 1 | Harry E. Thompson | Republican | Nov 8, 1972 to Nov 3, 1976 |
| 2 | James Richard Harris | Republican | Nov 3, 1976 to Jul 30, 1981 |
| Vacant | Jul 30, 1981 to Aug 21, 1981 | ||
| 3 | Gregory Dale Server | Republican | Aug 21, 1981 to Sep 19, 2005 |
| Vacant | Sep 19, 2005 to Sep 26, 2005 | ||
| 4 | Vaneta G. Liley Becker | Republican | Sep 26, 2005 to Present |