REGION 1
Del Norte
Humboldt
Mendocino
Lake

REGION 2
Siskiyou
Modoc
Trinity
Shasta
Lassen
Tehama
Plumas
Glenn
Butte

REGION 3
Colusa
Sierra
Nevada
Yuba
Sutter
Placer
Yolo
El Dorado
Sacramento
Alpine
Amador
Mono

REGION 4
Sonoma
Napa
Solano
Marin
Contra Costa

REGION 5
San Francisco
Alameda
San Mateo
Santa Clara
Santa Cruz
San Benito
Monterey

REGION 6
Calaveras
San Joaquin
Tuolumne
Stanislaus
Mariposa
Merced

REGION 7
San Luis Obispo
Santa Barbara
Ventura

REGION 8
Los Angeles

REGION 9
Inyo
San Bernardino
Riverside
Orange

REGION 10
San Diego
Imperial

REGION 11
Madera
Fresno
Kings
Tulare
Kern