Alameda County

• Oakland
• Berkeley
• Fremont
• Hayward
• Livermore
• Pleasanton

Contra Costa County

• Concord
• Walnut Creek
• Richmond
• Antioch
• Pittsburg
• Brentwood

Del Norte County

• Crescent City

El Dorado County

• Placerville

Fresno County (Central Valley, but part of Northern California)

• Fresno
• Clovis
• Reedley
• Selma

Humboldt County

• Eureka (County seat)
• Arcata
• Fortuna
• Rio Dell

Kern County (Part of the Central Valley)

• Bakersfield

Lake County

• Lakeport (County seat)
• Clear Lake
• Middletown

Marin County

• San Rafael
• Novato
• Mill Valley
• Larkspur
• Corte Madera

Mariposa County

• Mariposa
• Catheys Valley

Mendocino County

• Ukiah
• Fort Bragg
• Willits
• Mendocino

Merced County

• Merced
• Atwater
• Los Banos

Napa County

• Napa (County seat)
• American Canyon
• St. Helena
• Calistoga

Nevada County

• Grass Valley
• Nevada City

Placer County

• Auburn
• Roseville
• Rocklin
• Lincoln

Sacramento County

• Sacramento (State capital)
• Citrus Heights
• Elk Grove
• Folsom
• Rancho Cordova

San Benito County

• Hollister
• San Juan Bautista

San Francisco County

• San Francisco (City and county are one)

San Joaquin County

• Stockton (County seat)
• Tracy
• Manteca
• Lathrop

San Mateo County

• San Mateo
• Redwood City
• South San Francisco
• Daly City
• Foster City

Santa Clara County

• San Jose (County seat)
• Santa Clara
• Sunnyvale
• Mountain View
• Cupertino
• Palo Alto

Santa Cruz County

• Santa Cruz (County seat)
• Scotts Valley
• Capitola

Shasta County

• Redding (County seat)
• Anderson

Sierra County

• Downieville

Siskiyou County

• Yreka (County seat)
• Mount Shasta

Solano County

• Fairfield (County seat)
• Vallejo
• Vacaville
• Benicia

Sonoma County

• Santa Rosa (County seat)
• Petaluma
• Rohnert Park
• Windsor
• Healdsburg

Stanislaus County

• Modesto (County seat)
• Turlock
• Ceres
• Patterson

Sutter County

• Yuba City (County seat)
• Live Oak
• Linda

Tehama County

• Red Bluff (County seat)
• Corning

Trinity County

• Weaverville (County seat)
• Hayfork

Tulare County (Part of the Central Valley)

• Visalia (County seat)
• Tulare
• Porterville

Tuolumne County

• Sonora (County seat)
• Jamestown
• Tuolumne

Yolo County

• Woodland (County seat)
• Davis
• West Sacramento

Yuba County

• Marysville (County seat)
• Olivehurst

Service Area through Partnership:

• Southern California