| # | Office Holder | Party | Tenure |
|---|---|---|---|
| 1 | Gene E. Snowden | Republican | Nov 9, 1966 to Nov 8, 1972 |
| 2 | John Franklin Shawley | Republican | Nov 8, 1972 to Nov 3, 1976 |
| 3 | Dennis Patrick Neary | Democratic | Nov 3, 1976 to Nov 4, 1992 |
| 4 | Anita Olga Albu Bowser | Democratic | Nov 4, 1992 to Mar 4, 2007 |
| Vacant | Mar 4, 2007 to Mar 25, 2007 | ||
| 5 | Jim Arnold | Democratic | Mar 25, 2007 to Nov 9, 2016 |
| 6 | Mike Bohacek | Republican | Nov 9, 2016 to Present |