University of California

For more information, please visit the University of California Agriculture and Natural Resources Cooperative Extension website.

Metropolitan Areas in California (definition of metropolitan) with links to the local Cooperative Extension office:

Notes:
MSA = Metropolitan Statistical Area
(#) = Rural-Urban Continuum Code

Greater than 1 million population (6)

MSA: Los Angeles – Long Beach – Anaheim

Principal Cities: Anaheim, Arcadia, Burbank, Carson, Costa Mesa, Fountain Valley, Gardena, Glendale, Irvine, Long Beach, Los Angeles, Monterey Park, Newport Beach, Orange, Pasadena, Santa Ana, Santa Monica, Torrance, Tustin
MSA Counties: Los Angeles County, Orange

MSA: Riverside – San Bernardino – Ontario

Principal Cities: Chino, Corona, Ontario, Redlands, Riverside, San Bernardino, Temecula, Victorville
MSA Counties: Riverside, San Bernardino

MSA: Sacramento – Roseville – Arden – Arcade
Arden-Arcade

Principal Cities: Folsom, Rancho Cordov, Roseville, Sacramento
MSA Counties: El Dorado, Placer, Sacramento, Yolo

MSA: San Diego – Carlsbad

Principal Cities: Carlsbad, San Diego
MSA Counties: San Diego

MSA: San Francisco – Oakland – Hayward

Principal Cities: Berkeley, Hayward, Oakland, Pleasanton, Redwood City, San Francisco, San Leandro, San Rafael, San Ramon, South San Francisco, Walnut Creek
MSA Counties: Marin, San Francisco, San Mateo, Alameda, Contra Costa

MSA: San Jose – Sunnyvale – Santa Clara

Principal Cities: Cupertino, Milpitas, Mountain View, Palo Alto, San Jose, Santa Clara, Sunnyvale
MSA Counties: San Benito, Santa Clara

250,000 to 1 million population (13)

MSA: Bakersfield

Principal Cities: Bakersfield
MSA Counties: Kern

MSA: Fresno

Principal Cities: Fresno
MSA Counties: Fresno

MSA: Merced

Principal Cities: Merced
MSA Counties: Merced

MSA: Modesto

Principal Cities: Modesto
MSA Counties: Stanislaus

MSA: Oxnard – Thousand Oaks – Ventura

Principal Cities: Camarillo, Oxnard, San Buenaventura (Ventura), Thousand Oaks
MSA Counties: Ventura

MSA: Salinas

Principal Cities: Salinas
MSA Counties: Monterey

MSA: San Luis Obispo-Paso Robles-Arroyo

Grande

Principal Cities: Arroyo Grande, El Paso de Robles (Paso Robles), San Luis Obispo
MSA Counties: San Luis Obispo

MSA: Santa Cruz – Watsonville

Principal Cities: Santa Cruz, Watsonville
MSA Counties: Santa Cruz

MSA: Santa Maria – Santa Barbara

Principal Cities: Santa Barbara, Santa Maria
MSA Counties: Santa Barbara

MSA: Santa Rosa

Principal Cities: Santa Rosa
MSA Counties: Sonoma

MSA: Stockton – Lodi

Principal Cities: Lodi, Stockton
MSA Counties: San Joaquin

MSA: Vallejo – Fairfield

Principal Cities: Fairfield, Vallejo
MSA Counties: Solano

MSA: Visalia – Porterville

Principal Cities: Porterville, Visalia
MSA Counties: Tulare

Fewer than 250,000 population (7)

MSA: Chico

Principal Cities: Chico
MSA Counties: Butte

MSA: El Centro

Principal Cities: El Centro
MSA Counties: Imperial

MSA: Hanford Corcoran

Principal Cities: Corcoran, Hanford
MSA Counties: Kings

MSA: Madera

Principal Cities: Madera
MSA Counties: Madera

MSA: Napa

Principal Cities: Napa
MSA Counties: Napa

MSA: Redding

Principal Cities: Redding
MSA Counties: Shasta

MSA: Yuba City

Principal Cities: Yuba City
MSA Counties: Sutter, Yuba