| Topanga Banjo-Fiddle Contest & Folk Festival | Agoura Hills | CA | United States | May | Folk music, with a focus on banjo and fiddle playing, including competitions and performances |
| Dry Diggings | Auburn | CA | United States | August | Pop, Reggae, Rock |
| Berkeley Bluegrass Festival | Berkeley | CA | United States | April | Bluegrass |
| Siesta Valley Strings & Things Music Festival | Berkeley | CA | United States | June | Bluegrass, with elements of Americana, Folk, and Roots music. |
| Berkeley Old Time Music Convention | Berkeley | CA | United States | September | Bluegrass |
| Lucidity Festival | Bradley | CA | United States | April | Alternative, Electronic, Rock |
| South State 48 | Carlsbad | CA | United States | November | Bluegrass |
| CBA South State 48 Bluegrass by the Sea | Carlsbad | CA | United States | November | Americana, Roots, Rock, Blues, Country, and various Americana subgenres. |
| Ohana Festival | Dana Point | CA | United States | September | Alternative, Country, Folk, Indie, Rock |
| Locomotion Fest | Felton | CA | United States | August | Jam, Bluegrass |
| Santa Cruz Mountain Sol Festival | Felton | CA | United States | August | Americana, Roots, Rock, Reggae, and more. |
| Santa Barbara Old-Time Fiddler’s Festival | Goleta | CA | United States | October | Bluegrass |
| Father’s Day Bluegrass Festival | Grass Valley | CA | United States | June | Bluegrass |
| Strawberry Music Festival | Grass Valley | CA | United States | May | Americana, folk, bluegrass, and roots music |
| California WorldFest | Grass Valley | CA | United States | October | Folk, Jam, Reggae |
| CBA Golden Old-time Campout | Guerneville | CA | United States | August | Bluegrass |
| Reggae on the River | Humboldt County | CA | United States | August | Reggae |
| Stagecoach Festival | Indio | CA | United States | April | Country music, with some Americana and roots influences |
| Joshua Tree Festival Fall | Joshua Tree | CA | United States | October | Jam, Rock |
| Lake Tahoe Reggae Festival | Lake Tahoe | CA | United States | August | Reggae |
| CBA Fall Campout | Lodi | CA | United States | October | Bluegrass |
| Long Beach Jazz Festival | Long Beach | CA | United States | August | Jazz |
| Coastal Country Jam | Long Beach | CA | United States | September | Country |
| Lost in Dreams Festival | Los Angeles | CA | United States | July | Variety |
| Love RNB Festival | Los Angeles | CA | United States | September | R&B |
| Mammoth Bluesapalooza | Mammoth Lakes | CA | United States | August | Variety |
| Rebels & Renegades Festival | Monterey | CA | United States | October | Folk, Jam, Country |
| Monterey Jazz Festival | Monterey | CA | United States | September | Jazz |
| Carolina Country Music Festival | Myrtle Beach | CA | United States | June | Country |
| Bottlerock Napa Valley | Napa | CA | United States | May | Alternative, Americana, Hip Hop, Latin, Pop, R&B, Reggae, Rock |
| Camp Redwoods | Navarro | CA | United States | August | Jam |
| Redwood Ramble | Navarro | CA | United States | July | Bluegrass |
| Camp Deep End | Navarro | CA | United States | September | Jam |
| Mosswood Meltdown | Oakland | CA | United States | July | Indie |
| The Huck Finn Jubilee | Ontario | CA | United States | October | Bluegrass, with workshops, competitions, and performances |
| Parkfield Bluegrass Festival | Parkfield | CA | United States | May | Bluegrass |
| Frankly Bluegrass Music Festival | Plymouth | CA | United States | October | Bluegrass |
| Plumas Homegrown Americana Festival | Quincy | CA | United States | September | Americana |
| High Sierra Music Festival | Quincy | CA | United States | July | Bluegrass |
| GoldenSky Country Festival | Sacramento | CA | United States | October | Country |
| Holo Holo California | Sacramento | CA | United States | September | Reggae |
| Huck Finn Jubilee | San Dimas | CA | United States | October | Bluegrass |
| Outside Lands | San Francisco | CA | United States | August | Alternatic, Electronic, Hip Hop, Inide, Rock |
| Hardly Strictly Bluegrass | San Francisco | CA | United States | October | Bluegrass, with some Americana, Folk, and Roots influences |
| San Jose Jazz Festival | San Jose | CA | United States | August | Jazz |
| Cline Country Bluegrass Festival | Sonoma | CA | United States | July | Bluegrass |
| Susanville Bluegrass Festival | Susanville | CA | United States | June | Bluegrass |
| WinterWonderGrass Tahoe | Tahoe | CA | United States | April | Bluegrass, Americana, roots music, with a focus on winter activities and a unique mountain setting |
| Reggae on the Mountain | Topanga | CA | United States | August | Reggae |
| Good Old Fashioned Bluegrass Festival | Tres Pinos | CA | United States | August | Bluegrass |
| Strawberry Music Festival | Tuolumne | CA | United States | May | Bluegrass |
| Calico Bluegrass Festival | Yermo | CA | United States | May | Bluegrass |
