| Year | Class 4A/AA | Class 3A/A | Class 2A/B | Class 1A/C |
|---|---|---|---|---|
| 2023 | Laramie | Mountain View | Big Horn | Cokeville |
| 2022 | Kelly Walsh | Mountain View | Burns | Riverside |
| 2021 | Laramie | Lyman | Big Horn | Kaycee |
| 2020 | Laramie | Mountain View | Sundance | Cokeville |
| 2019 | Kelly Walsh | Rawlins | Sundance | Cokeville |
| 2018 | Kelly Walsh | Lyman | Wright | Cokeville |
| 2017 | Kelly Walsh | Douglas | Sundance | Cokeville |
| 2016 | Cheyenne East | Star Valley | Wright | Snake River |
| 2015 | Cheyenne East | Worland | Wright | Encampment |
| 2014 | Cheyenne East | Douglas | Wright | Cokeville |
| 2013 | Natrona | Powell | Kemmerer | Cokeville |
| 2012 | Cheyenne East | Torrington | Lovell | Cokeville |
| 2011 | Sheridan | Cody | Wright | Cokeville |
| 2010 | Kelly Walsh | Cody | Rocky Mountain | Kaycee |
| 2009 | Green River | Wheatland | Big Horn | Burlington |
| 2008 | Kelly Walsh | Powell | Big Horn | Cokeville |
| 2007 | Natrona | Wheatland | Big Horn | Hulett |
| 2006 | Cheyenne Central | Wheatland | Sundance | Burlington |
| 2005 | Kelly Walsh | Star Valley | Pine Bluffs | Guernsey |
| 2004 | Cheyenne East | Star Valley | Pine Bluffs | Snake River |
| 2003 | Cheyenne East | Star Valley | Pine Bluffs | Snake River |
| 2002 | Kelly Walsh | Star Valley | Lusk | Burlington |
| 2001 | Kelly Walsh | Rawlins | Sundance | Cokeville |
| 2000 | Campbell County | Wheatland | Big Horn | Cokeville |
| 1999 | Natrona | Rawlins | Pinedale | Cokeville |
| 1998 | Natrona | Douglas | Wright | Cokeville |
| 1997 | Campbell County | Mountain View | Lovell | Cokeville |
| 1996 | Campbell County | Star Valley | Tongue River | Cokeville |
| 1995 | Campbell County | Mountain View | Tongue River | Cokeville |
| 1994 | Laramie | Lyman | Tongue River | Burlington |
| 1993 | Cody | Lyman | Tongue River | Cokeville |
| 1992 | Campbell County | Rawlins | Burns | Cokeville |
| 1991 | Cody | Star Valley | Saratoga | Cokeville |
| 1990 | Riverton | Lyman | Mountain View | Cokeville |
| 1989 | Campbell County | Worland | Pine Bluffs | Cokeville |
| 1988 | Cody | Worland | Greybull | Cokeville |
| 1987 | Riverton | Powell | Pine Bluffs | Cokeville |
| 1986 | Sheridan | Worland | Pine Bluffs | Cokeville |
| 1985 | Cody | Wheatland | Burns | Cokeville |
| 1984 | Rawlins | Buffalo | Pine Bluffs | Snake River |
| 1983 | Riverton | Wheatland | Kemmerer | Manderson |
| 1982 | Riverton | Wheatland | Pine Bluffs | Manderson |
| 1981 | Natrona | Wheatland | Pine Bluffs | Ten Sleep |
| 1980 | Worland | Star Valley | Pine Bluffs | Manderson |
| 1979 | Lander | Wheatland | Pine Bluffs | Byron |
| 1978 | Lander | Star Valley | Pine Bluffs | Manderson |
| 1977 | Riverton | Greybull | Big Piney | Encampment |
| 1976 | Natrona | Jackson | St. Mary's | Meeteetse |
| 1975 | Cheyenne East | Jackson | Upton | Encampment |
| 1974 | Cheyenne East | - | St. Mary's | - |
| 1973 | Cheyenne East | - | Sundance | - |
| 1972 | Douglas | - | - | - |
| 1971 | Kelly Walsh | - | - | - |
Total team championships
Cokeville: 26
Pine Bluffs: 12
Kelly Walsh: 10
Cheyenne East, Star Valley, Wheatland: 9
Big Horn, Campbell County, Cody, Mountain View, Natrona, Sundance, Wright: 6
Lyman, Rawlins, Riverton, Worland: 5
Burlington, Douglas, Laramie, Manderson, Snake River, Tongue River: 4
Burns, Encampment, Powell: 3
Greybull, Jackson, Kaycee, Kemmerer, Lander, Lovell, St. Mary’s, Sheridan: 2
Big Piney, Buffalo, Byron, Cheyenne Central, Green River, Guernsey, Hulett, Lusk, Meeteetse, Pinedale, Riverside, Rocky Mountain, Saratoga, Ten Sleep, Torrington, Upton: 1