American Viticultural Areas Located in California by County
The table below summarizes all approved American Viticultural Areas located in California by the counties that they are located in. Many viticultural areas occupy area in more than one county. The county name in the first column is linked to county information on another web site. Official county sites were used whenever we could locate them. Text and PDF versions of the regulations are provided through links to the Government Printing Office databases. Please be patient - it may take a few moments for the page to load. Newer AVAs may not be in the GPO database. Finally, effective dates and acreage are also provided. Clicking on the hyperlinked name will query the U.S. government printing office for the current regulation. Users may want to review the AVA FILES section to obtain the most recent rulemaking history for specific viticultural areas.When downloading PDF files on a Windows system, you will need to rename the file. Please remember to use the "*.PDF" naming convention when renaming the file so that the file can be properly associated with the Acrobat reader.
| COUNTY | AVA Name | Text | Acreage | Eff Date | |
| Alameda | Central Coast | TEXT | 4000000 | 11/25/1985 | |
| Alameda | Livermore Valley | TEXT | 96000 | 10/1/1982 | |
| Amador | California Shenandoah Valley | TEXT | 10000 | 2/27/1987 | |
| Amador | Fiddletown | TEXT | 11500 | 11/3/1983 | |
| Amador | Sierra Foothills | TEXT | 2600000 | 12/18/1987 | |
| Calaveras | Sierra Foothills | TEXT | 2600000 | 12/18/1987 | |
| Contra Costa | Central Coast | TEXT | 4000000 | 11/25/1985 | |
| El Dorado | California Shenandoah Valley | TEXT | 10000 | 2/27/1987 | |
| El Dorado | El Dorado | TEXT | 416 | 11/14/1983 | |
| El Dorado | Fair Play | TEXT | 21120 | 4/27/2001 | |
| El Dorado | Sierra Foothills | TEXT | 2600000 | 12/18/1987 | |
| Fresno | Madera | TEXT | 230000 | 1/7/1985 | |
| Humboldt | Willow Creek | TEXT | 6000 | 9/19/1983 | |
| Lake | Benmore Valley | TEXT | 1440 | 11/18/1991 | |
| Lake | Clear Lake | TEXT | 168960 | 6/7/1984 | |
| Lake | Guenoc Valley | TEXT | 4396 | 12/21/1981 | |
| Lake | High Valley | TEXT | 14000 | 8/1/2005 | |
| Lake | North Coast | TEXT | 3008000 | 10/21/1983 | |
| Lake | Red Hills Lake County | TEXT | 0 | 9/10/2004 | |
| Los Angeles | Malibu-Newton Canyon | TEXT | 850 | 6/13/1996 | |
| Madera | Madera | TEXT | 230000 | 1/7/1985 | |
| Marin | North Coast | TEXT | 3008000 | 10/21/1983 | |
| Mariposa | Sierra Foothills | TEXT | 2600000 | 12/18/1987 | |
| Mendocino | Anderson Valley | TEXT | 600 | 9/19/1983 | |
| Mendocino | Cole Ranch | TEXT | 150 | 5/16/1983 | |
| Mendocino | Dos Rios | TEXT | 15500 | 11/14/2005 | |
| Mendocino | McDowell Valley | TEXT | 540 | 2/27/1987 | |
| Mendocino | Mendocino Ridge | TEXT | 87466 | 12/26/1997 | |
| Mendocino | North Coast | TEXT | 3008000 | 10/21/1983 | |
| Mendocino | Potter Valley | TEXT | 27500 | 11/14/1983 | |
| Mendocino | Redwood Valley | TEXT | 22400 | 2/21/1997 | |
| Mendocino | Yorkville Highlands | TEXT | 40000 | 6/8/1998 | |
| Monterey | Arroyo Seco | TEXT | 18240 | 5/16/1983 | |
| Monterey | Carmel Valley | TEXT | 19200 | 1/13/1983 | |
| Monterey | Central Coast | TEXT | 4000000 | 11/25/1985 | |
| Monterey | Chalone | TEXT | 8540 | 7/14/1982 | |
| Monterey | Hames Valley | TEXT | 10240 | 4/25/1994 | |
| Monterey | Monterey | TEXT | 35758 | 7/16/1984 | |
| Monterey | San Bernabe | TEXT | 24796 | 8/30/2004 | |
| Monterey | San Lucas | TEXT | 33920 | 3/2/1987 | |
| Monterey | Santa Lucia Highlands | TEXT | 22000 | 6/15/1992 | |
| Napa | Atlas Peak | TEXT | 11400 | 2/24/1992 | |
| Napa | Chiles Valley | TEXT | 6000 | 4/19/1999 | |
| Napa | Diamond Mountain District | TEXT | 5000 | 7/31/2001 | |
| Napa | Howell Mountain | TEXT | 14080 | 1/30/1984 | |
| Napa | Los Carneros | TEXT | 0 | 9/19/1987 | |
| Napa | Mount Veeder | TEXT | 15000 | 3/22/1990 | |
| Napa | Napa Valley | TEXT | 225280 | 2/27/1981 | |
| Napa | North Coast | TEXT | 3008000 | 10/21/1983 | |
| Napa | Oak Knoll District of Napa Valley | TEXT | 8300 | 4/26/2004 | |
| Napa | Oakville | TEXT | 5760 | 8/2/1993 | |
| Napa | Rutherford | TEXT | 6650 | 8/2/1993 | |
| Napa | Saint Helena | TEXT | 9060 | 10/11/1995 | |
| Napa | Spring Mountain District | TEXT | 8600 | 6/14/1993 | |
| Napa | Stags Leap District | TEXT | 2700 | 2/27/1989 | |
| Napa | Wild Horse Valley | TEXT | 3300 | 12/30/1988 | |
| Napa | Yountville | TEXT | 8260 | 5/18/1999 | |
| Nevada | Sierra Foothills | TEXT | 2600000 | 12/18/1987 | |
| Placer | Sierra Foothills | TEXT | 2600000 | 12/18/1987 | |
| Riverside | Cucamonga Valley | TEXT | 109400 | 5/1/1995 | |
| Riverside | South Coast | TEXT | 115200 | 12/23/1985 | |
| Riverside | Temecula Valley | TEXT | 33000 | 2/7/1986 | |
| Sacramento | Clarksburg | TEXT | 64640 | 2/22/1984 | |
| Sacramento | Lodi | TEXT | 458000 | 3/17/1986 | |
| San Benito | Central Coast | TEXT | 4000000 | 11/25/1985 | |
| San Benito | Chalone | TEXT | 8540 | 7/14/1982 | |
| San Benito | Cienega Valley | TEXT | 0 | 9/20/1982 | |
| San Benito | Lime Kiln Valley | TEXT | 2300 | 7/6/1982 | |
| San Benito | Mount Harlan | TEXT | 7440 | 12/17/1990 | |
| San Benito | Pacheco Pass | TEXT | 3200 | 4/11/1984 | |
| San Benito | Paicines | TEXT | 4500 | 9/15/1982 | |
| San Benito | San Francisco Bay | TEXT | 1566713 | 3/22/1999 | |
| San Bernardino | Cucamonga Valley | TEXT | 109400 | 5/1/1995 | |
| San Diego | San Pasqual Valley | TEXT | 9000 | 9/16/1981 | |
| San Diego | South Coast | TEXT | 115200 | 12/23/1985 | |
| San Francisco | Central Coast | TEXT | 4000000 | 11/25/1985 | |
| San Francisco | San Francisco Bay | TEXT | 1566713 | 3/22/1999 | |
| San Joaquin | Lodi | TEXT | 458000 | 3/17/1986 | |
| San Joaquin | River Junction | TEXT | 1300 | 7/9/2001 | |
| San Luis Obispo | Arroyo Grande Valley | TEXT | 42880 | 2/5/1990 | |
| San Luis Obispo | Central Coast | TEXT | 4000000 | 11/25/1985 | |
| San Luis Obispo | Edna Valley | TEXT | 22400 | 6/11/1987 | |
| San Luis Obispo | Paso Robles | TEXT | 666618 | 11/3/1983 | |
| San Luis Obispo | Santa Maria Valley | TEXT | 80000 | 9/4/1981 | |
| San Luis Obispo | York Mountain | TEXT | 9360 | 2/27/1987 | |
| San Mateo | Central Coast | TEXT | 4000000 | 11/25/1985 | |
| San Mateo | San Francisco Bay | TEXT | 1566713 | 3/22/1999 | |
| San Mateo | Santa Cruz Mountains | TEXT | 0 | 1/4/1982 | |
| Santa Barbara | Central Coast | TEXT | 4000000 | 11/25/1985 | |
| Santa Barbara | Santa Maria Valley | TEXT | 80000 | 9/4/1981 | |
| Santa Barbara | Santa Rita Hills | TEXT | 30720 | 7/30/2001 | |
| Santa Barbara | Santa Ynez Valley | TEXT | 76800 | 5/16/1983 | |
| Santa Clara | Central Coast | TEXT | 4000000 | 11/25/1985 | |
| Santa Clara | San Francisco Bay | TEXT | 1566713 | 3/22/1999 | |
| Santa Clara | San Ysidro District | TEXT | 2340 | 12/17/1990 | |
| Santa Clara | Santa Clara Valley | TEXT | 332800 | 4/27/1989 | |
| Santa Clara | Santa Cruz Mountains | TEXT | 0 | 1/4/1982 | |
| Santa Cruz | Ben Lomond | TEXT | 38400 | 1/8/1988 | |
| Santa Cruz | Central Coast | TEXT | 4000000 | 11/25/1985 | |
| Santa Cruz | San Francisco Bay | TEXT | 1566713 | 3/22/1999 | |
| Santa Cruz | Santa Cruz Mountains | TEXT | 0 | 1/4/1982 | |
| Siskiyou | Seiad Valley | TEXT | 2160 | 6/20/1994 | |
| Solano | Clarksburg | TEXT | 64640 | 2/22/1984 | |
| Solano | North Coast | TEXT | 3008000 | 10/21/1983 | |
| Solano | Solano County Green Valley | TEXT | 2560 | 1/28/1983 | |
| Solano | Suisun Valley | TEXT | 15360 | 12/27/1982 | |
| Solano | Wild Horse Valley | TEXT | 3300 | 12/30/1988 | |
| Sonoma | Alexander Valley | TEXT | 32536 | 6/13/1988 | |
| Sonoma | Bennett Valley | TEXT | 8140 | 12/29/2003 | |
| Sonoma | Chalk Hill | TEXT | 22400 | 6/13/1988 | |
| Sonoma | Dry Creek Valley | TEXT | 80000 | 9/6/1983 | |
| Sonoma | Knights Valley | TEXT | 36240 | 11/21/1983 | |
| Sonoma | Los Carneros | TEXT | 0 | 9/19/1987 | |
| Sonoma | North Coast | TEXT | 3008000 | 10/21/1983 | |
| Sonoma | Northern Sonoma | TEXT | 348000 | 9/25/1986 | |
| Sonoma | Rockpile | TEXT | 15400 | 4/29/2002 | |
| Sonoma | Russian River Valley | TEXT | 126600 | 11/21/1983 | |
| Sonoma | Sonoma Coast | TEXT | 480000 | 7/13/1987 | |
| Sonoma | Sonoma County Green Valley | TEXT | 32000 | 12/21/1983 | |
| Sonoma | Sonoma Mountain | TEXT | 5000 | 2/22/1985 | |
| Sonoma | Sonoma Valley | TEXT | 4000 | 1/24/1982 | |
| Stanislaus | Diablo Grande | TEXT | 30000 | 8/21/1998 | |
| Stanislaus | Salado Creek | TEXT | 2940 | 8/30/2004 | |
| Trinity | Trinity Lakes | TEXT | 96000 | 4/29/2005 | |
| Trinity | Willow Creek | TEXT | 6000 | 9/19/1983 | |
| Tuolumne | Sierra Foothills | TEXT | 2600000 | 12/18/1987 | |
| Yolo | Clarksburg | TEXT | 64640 | 2/22/1984 | |
| Yolo | Dunnigan Hills | TEXT | 89000 | 6/14/1993 | |
| Yolo | Merritt Island | TEXT | 5000 | 2/27/1987 | |
| Yuba | North Yuba | TEXT | 22400 | 8/30/1985 | |
| Yuba | Sierra Foothills | TEXT | 2600000 | 12/18/1987 |
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