| 1978 | Amador Valley | 1995 | Amador Valley | 2012 | Carondelet |
| 1979 | Amador Valley | 1996 | Amador Valley | 2013 | Carondelet |
| 1980 | Amador Valley | 1997 | Amador Valley | 2014 | Carondelet |
| 1981 | Amador Valley | 1998 | Berkeley | 2015 | Carondelet |
| 1982 | Amador Valley | 1999 | Berkeley | 2016 | Carondelet |
| 1983 | Granada | 2000 | Berkeley | 2017 | Carondelet |
| 1984 | Foothill | 2001 | Amador Valley | 2018 | Carondelet |
| 1985 | San Ramon Valley | 2002 | Amador Valley | 2019 | San Ramon Valley |
| 1986 | Amador Valley | 2003 | Monte Vista | 2020 | San Ramon Valley |
| 1987 | San Ramon Valley | 2004 | Amador Valley | 2021 | COVID YEAR |
| 1988 | Dublin | 2005 | Amador Valley | 2022 | San Ramon Valley |
| 1989 | San Ramon Valley | 2006 | San Ramon Valley | 2023 | San Ramon Valley |
| 1990 | San Ramon Valley | 2007 | Amador Valley / Monte Vista | 2024 | San Ramon Valley |
| 1991 | Monte Vista | 2008 | Monte Vista | 2025 | San Ramon Valley |
| 1992 | Amador Valley | 2009 | Carondelet / Monte Vista | 2026 | |
| 1993 | Monte Vista | 2010 | Carondelet | 2027 | |
| 1994 | Amador Valley | 2011 | Carondelet | 2028 |