- Region 1
-
Del Norte
-
Humboldt
-
Lake
-
Marin
-
Mendocino
-
Napa
-
San Francisco
-
San Mateo, North
-
Siskiyou, West
-
Sonoma
-
Tuolumne
- Region 2
-
Alpine
-
Amador
-
Butte
-
Calaveras
-
Colusa
-
El Dorado
-
Glenn
-
Lassen
-
Modoc
-
Nevada
-
Placer
-
Plumas
-
Sacramento
-
San Joaquin
-
Shasta
-
Sierra
-
Siskiyou, East
-
Solano
-
Sutter
-
Tehama
-
Tulare
-
Yolo
-
Yuba
- Region 3
-
Alameda
-
Contra Costa
- Region 4
-
Monterey
-
San Benito
-
San Luis Obispo
-
San Mateo, South
-
Santa Clara
-
Santa Cruz
- Region 5
-
Fresno
-
Kern
-
Kings
-
Madera
-
Mariposa
-
Merced
-
Stanislaus
-
Trinity, East
-
Trinity, West
- Region 6.1
-
Los Angeles, East
-
Santa Barbara
- Region 6.2
-
Los Angeles, West
-
Ventura
- Region 7
-
Inyo
-
Mono
-
Riverside
-
San Bernardino
- Region 8
-
Orange
- Region 9
-
Imperial
-
San Diego
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