| 1979-84 | Joseph P. Murphy, Casper |
| 1984-88 | Donald B. Hunton, Cheyenne |
| 1988-92 | James A. Maddy, Casper |
| 1992-96 | Darryl D. Bindschadler, Cheyenne |
| 1996-00 | Daniel S. Klein, Laramie |
| 2000-04 | Harmon H. Davis II, Cheyenne |
| 2004-08 | Thomas H. Niethammer, Sheridan |
| 2008-12 | Eric J. Wedell, Cheyenne |
| 2012-16 | James F. Bush, Cheyenne |
| 2016-2020 | Michael D. Tracy, Powell |
| 2020-2024 | Robert Monger, Cheyenne |
| 2024-2028 | Sierra Gross, Sheridan |