Regionals/California/Sonoma County
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| Current Victor: | Granada Hills Charter High School |
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Results for Sonoma County[edit]
In 2021, Contra Costa, Lake, Marin, Monterey, Mendocino, Napa, San Benito, San Francisco, San Mateo, Santa Clara, Santa Cruz, Solano, Sonoma, and Yolo Counties began competing together in the Bay Region Academic Decathlon. While each county has its own region champion and ADSIC page, links to any year after 2020 on this page go to Bay competitions.
From 2006 to 2020, Marin, Mendocino, Napa, Solano, Sonoma and Yolo Counties competed together in the North Bay Region Academic Decathlon. While each county has its own region champion and ADSIC page, links to any year between 2006 and 2020 on this page go to North Bay competitions.
Years given are for the year of the State competition; in the 1997-1998 Academic Decathlon season, the date for regional competitions changed from November the year before the state competition to the February before the state competition.
| Year | Winner | Score |
|---|---|---|
| 2022 | Casa Grande High School | ? |
| 2021 | Casa Grande High School | 30,754 |
| 2020 | Casa Grande High School | 33,418 |
| 2019 | Casa Grande High School | 37,457 |
| 2018 | Casa Grande High School | 42,895 |
| 2017 | Casa Grande High School | 46,976 |
| 2016 | Casa Grande High School | 45,607 |
| 2015 | Casa Grande High School | 49,934 (with SQ) |
| 2014 | Casa Grande High School | 41,882 |
| 2013 | Casa Grande High School | 43,748 |
| 2012 | Casa Grande High School | 41,639 |
| 2011 | Casa Grande High School | 42,539 |
| 2010 | Casa Grande High School | 40,660 |
| 2009 | Casa Grande High School | 45,101 |
| 2008 | Casa Grande High School | 45,658 |
| 2007 | Casa Grande High School | 42,489.0 |
| 2006 | Casa Grande High School | 40,752.5 |
| 2005 | Casa Grande High School | 40,823.9 |
| 2004 | Casa Grande High School | 42,658.0 |
| 2003 | Casa Grande High School | 40,178 |
| 2002 | Casa Grande High School | 42,793 |
| 2001 | Casa Grande High School | 39,418 |
| 2000 | Casa Grande High School | 42,804 |
| 1999 | Casa Grande High School | 32,784 |
| 1998 | Casa Grande High School | 43,168 |
| 1997 | Casa Grande High School | 42,492 |
| 1996 | Casa Grande High School | 42,944 |
| 1995 | Casa Grande High School | 45,320 |
| 1994 | Casa Grande High School | |
| 1993 | Casa Grande High School | |
| 1992 | Casa Grande High School | |
| 1991 | Casa Grande High School | |
| 1990 | Casa Grande High School | |
| 1989 | Casa Grande High School | |
| 1988 | Casa Grande High School | |
| 1987 | Casa Grande High School | |
| 1986 | Casa Grande High School |
