| # | Office Holder | Party | Tenure |
|---|---|---|---|
| 1 | Herman Joseph Fanning, Jr. | Democratic | Nov 9, 1966 to Nov 8, 1972 |
| Jack Herman Mankin | Democratic | Nov 9, 1966 to Nov 6, 1968 | |
| 3 | Leonard Francis Conrad | Democratic | Nov 6, 1968 to Nov 8, 1972 |
| 4 | Joseph William Harrison | Republican | Nov 8, 1972 to Nov 8, 2006 |
| 5 | Phil Boots | Republican | Nov 8, 2006 to Nov 9, 2022 |
| 6 | Spencer R. Deery | Republican | Nov 9, 2022 to Present |