| Year | Class 4A/AA | Time | Class 3A/A | Time | Class 2A/B | Time | Class 1A/C | Time |
|---|---|---|---|---|---|---|---|---|
| State meet records | Thunder Basin 2024 | 3:19.02 | Douglas 2015 | 3:23.49 | Wright 1990 | 3:26.81 | Lingle 2022 | 3:27.43 |
| 2024 | Thunder Basin | 3:19.02 | Douglas | 3:27.23 | Lingle | 3:30.53 | Southeast | 3:38.63 |
| 2023 | Thunder Basin | 3:20.40 | Lander | 3:23.84 | Burns | 3:27.57 | Cokeville | 3:34.44 |
| 2022 | Thunder Basin | 3:25.41 | Lander | 3:28.55 | Tongue River | 3:32.33 | Lingle | 3:27.43 |
| 2021 | Sheridan | 3:28.18 | Rawlins | 3:34.02 | Big Horn | 3:42.93 | Cokeville | 3:35.82 |
| 2020 | No meet | - | No meet | - | No meet | - | No meet | - |
| 2019 | Evanston | 3:26.07 | Powell | 3:31.09 | Big Horn | 3:33.64 | Cokeville | 3:40.28 |
| 2018 | Sheridan | 3:22.74 | Star Valley | 3:27.65 | Lovell | 3:31.11 | Kaycee | 3:36.40 |
| 2017 | Laramie | 3:20.29 | Douglas | 3:30.32 | Southeast | 3:30.75 | Lingle | 3:36.53 |
| 2016 | Campbell County | 3:23.95 | Douglas | 3:27.25 | Big Horn | 3:32.96 | Upton | 3:37.80 |
| 2015 | Cheyenne Central | 3:23.36 | Douglas | 3:23.49 | Thermopolis | 3:29.99 | Cokeville | 3:37.90 |
| 2014 | Natrona County | 3:20.07 | Douglas | 3:26.30 | Saratoga | 3:32.09 | Guernsey | 3:36.11 |
| 2013 | Natrona County | 3:20.90 | Lander | 3:29.22 | Saratoga | 3:33.68 | Cokeville | 3:33.30 |
| 2012 | Campbell County | 3:26.52 | Powell | 3:27.57 | Saratoga | 3:32.25 | Snake River | 3:32.96 |
| 2011 | Cheyenne Central | 3:29.59 | Powell | 3:30.62 | Big Piney | 3:38.03 | Snake River | 3:42.88 |
| 2010 | Cheyenne Central | 3:28.44 | Powell | 3:32.67 | Wind River | 3:35.47 | Snake River | 3:42.76 |
| 2009 | Campbell County | 3:24.84 | Powell | 3:28.57 | Pine Bluffs | 3:30.98 | Cokeville | 3:36.37 |
| 2008 | Natrona County | 3:23.89 | Cody | 3:25.11 | Guernsey | 3:30.69 | Cokeville | 3:38.15 |
| 2007 | Laramie | 3:25.33 | Powell | 3:27.06 | Southeast | 3:34.66 | Lingle | 3:35.32 |
| 2006 | Campbell County | 3:24.50 | Powell | 3:28.92 | Lyman | 3:32.77 | Lingle | 3:31.04 |
| 2005 | Campbell County | 3:23.51 | Lander | 3:24.79 | Lingle | 3:36.59 | Cokeville | 3:38.65 |
| 2004 | Natrona County | 3:23.57 | Lander | 3:31.01 | Pine Bluffs | 3:35.10 | Cokeville | 3:40.63 |
| 2003 | Green River | 3:26.18 | Powell | 3:30.09 | Pinedale | 3:32.06 | Guernsey | 3:41.89 |
| 2002 | Evanston | 3:28.24 | Douglas | 3:31.17 | Big Horn | 3:33.89 | Burlington | 3:36.57 |
| 2001 | Campbell County | 3:20.98 | Powell | 3:27.50 | Lusk | 3:30.46 | Dubois | 3:38.97 |
| 2000 | Campbell County | 3:24.75 | Powell | 3:29.03 | Big Piney | 3:29.62 | Southeast | 3:36.52 |
| 1999 | Campbell County | 3:23.56 | Powell | 3:28.27 | Pinedale | 3:32.68 | Albin | 3:35.07 |
| 1998 | Cheyenne Central | 3:24.44 | Torrington | 3:27.20 | Pinedale | 3:34.88 | Dubois | 3:40.05 |
| 1997 | Cheyenne Central | 3:25.01 | Star Valley | 3:26.03 | Lovell | 3:33.24 | Lingle | 3:35.19 |
| 1996 | Sheridan | 3:28.53 | Torrington | 3:28.08 | Pinedale | 3:34.31 | Lingle | 3:43.03 |
| 1995 | Cheyenne East | 3:24.52 | Torrington | 3:26.15 | Big Piney | 3:29.33 | Dubois | 3:44.20 |
| 1994 | Cody | 3:24.09 | Torrington | 3:28.48 | Greybull | 3:31.61 | Dubois | 3:39.85 |
| 1993 | Cody | 3:23.00 | Lander | 3:26.35 | Lusk | 3:35.00 | Southeast | 3:41.70 |
| 1992 | Cody | 3:25.15 | Worland | 3:24.30 | Moorcroft | 3:30.80 | Dubois | 3:36.32 |
| 1991 | Campbell County | 3:27.30 | Star Valley | 3:29.47 | Big Piney | 3:31.73 | Meeteetse | 3:36.72 |
| 1990 | Green River | 3:21.69 | Douglas | 3:26.16 | Wright | 3:26.81 | Dubois | 3:36.18 |
| 1989 | Campbell County | 3:26.41 | Powell | 3:27.35 | Wright | 3:31.86 | Dubois | 3:38.95 |
| 1988 | Natrona County | 3:24.34 | Douglas | 3:29.22 | Greybull | 3:34.97 | Encampment | 3:37.28 |
| 1987 | Kelly Walsh | 3:26.56 | Douglas | 3:28.83 | Basin | 3:31.74 | Big Horn | 3:35.31 |
| 1986 | Cody | 3:25.81 | Glenrock | 3:26.06 | Big Piney | 3:35.84 | Wright | 3:36.18 |
| 1985 | Natrona County | 3:26.50 | Worland | 3:32.04 | Hanna | 3:35.52 | Wright | 3:39.52 |
| 1984 | Natrona County | 3:25.65 | Worland | 3:26.84 | Hanna | 3:31.93 | Big Horn | 3:37.12 |
| 1983 | Worland | 3:28.94 | Evanston | 3:35.19 | Wind River | 3:29.56 | Meeteetse | 3:41.13 |
| 1982 | Kelly Walsh | 3:23.63 | Buffalo | 3:33.28 | Wind River | 3:30.97 | Ten Sleep | 3:41.76 |
| 1981 | Cheyenne East | 3:27.10 | Douglas | 3:32.00 | Southeast | 3:32.59 | Albin | 3:45.09 |
| 1980 | Cheyenne Central | 3:22.37 | Torrington | 3:30.70 | Guernsey | 3:34.32 | Goshen Hole | 3:34.50 |
| 1979 | not contested at AA level | Buffalo | 3:32.956 | Guernsey | 3:38.732 | not contested at C level |