| # | Office Holder | Party | Tenure |
|---|---|---|---|
| 1 | Willis King Batchelet | Republican | Nov 9, 1966 to Nov 6, 1968 |
| 2 | John Frederick Augsburger | Republican | Nov 6, 1968 to Nov 8, 1972 |
| 3 | Ernest F. Niemeyer | Republican | Nov 8, 1972 to Nov 7, 1984 |
| Vacant | Nov 7, 1984 to Dec 4, 1984 | ||
| 4 | Dorothy S. (Sue) Landske | Republican | Dec 4, 1984 to Nov 5, 2014 |
| 5 | Rick Niemeyer | Republican | Nov 5, 2014 to Present |