Pollen count and allergy info for Castro Valley
Castro Valley pollen and allergy report • 22:00, Nov 10
Index
Low
Tree
Low
Grass
None
Weed
Low
16°
2 km/h
83%Daily allergy forecast
Castro Valley pollen count forecast
Today  6 km/h 24 °14° 48% | Wednesday  10 km/h 23°14° 46% | Thursday 29 km/h 17°12° 74% |
Air pollutants
Air quality in Castro Valley today
AQI⁺
Air quality index
22AQI⁺ US
PM2.5
Fine particles (≤ 2.5 µm)
4µg/m³
Learn more about pollen in Castro Valley
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Where is the highest pollen level in California?
- Allensworth3
- Alpaugh3
- Alpine3
- Alum Rock3
- Avenal3
- Baker3
- Bakersfield3
- Bakersfield Country Club3
- Banning3
- Barstow3
- Benton Park3
- Biola3
- Bloomington3
- Blythe3
- Bonadelle Ranchos3
- Bonsall3
- Brooktrails3
- Burbank, Santa Clara County3
- Cabazon3
- Calabasas3
- California City3
- California Polytechnic State University3
- Calimesa3
- Calwa3
- Camarillo3
- Cambrian Park3
- Canyon Lake3
- Casa Conejo3
- Casa Loma3
- Cathedral City3
- Cayucos3
- Centerville, Fresno County3
- Chico3
- Chinese Camp3
- Chualar3
- Clovis3
- Coalinga3
- Coarsegold3
- Colton3
- Copperopolis3
- Corcoran3
- Corona3
- Coronita3
- Covelo3
- Creston3
- Cutler3
- Cuyama3
- Del Dios3
- Del Rey3
- Desert Center3
- Desert Hot Springs3
- Desert Palms3
- Dos Palos3
- Earlimart3
- East Foothills3
- East Hemet3
- East Porterville3
- Easton3
- Edna3
- Escondido3
- Exeter3
- Fallbrook3
- Farmersville3
- Fiddletown3
- Fillmore3
- Firebaugh3
- Fontana3
- Ford City3
- Fowler3
- French Valley3
- Fresno3
- Fresno County3
- Friant3
- Fruitdale3
- Fulton3
- Gonzales3
- Good Hope3
- Grand Terrace3
- Green Acres3
- Greenacres3
- Harbison Canyon3
- Hayward3
- Hemet3
- Hidden Meadows3
- Highgrove3
- Highland3
- Home Gardens3
- Homeland3
- Hornitos3
- Huron3
- Ione3
- Ivanhoe3
- Joshua Tree3
- Jurupa Valley3
- Kettleman City3
- Kings3
- La Cresta3
- Ladera3
- Lake Don Pedro3
- Lake Elsinore3
- Lake Nacimiento3
- Lake Sherwood3
- Lakeland Village3
- Lakeview3
- Lamont3
- Larkfield-Wikiup3
- Le Grand3
- Lemon Cove3
- Lemoore Station3
- Lenwood3
- Lindsay3
- Livermore3
- Lompoc3
- Los Altos3
- Los Altos Hills3
- Lost Hills3
- Loyola3
- Madera3
- Madera Acres3
- Madera County3
- Maricopa3
- Mayfair3
- Mead Valley3
- Meadowbrook3
- Mendocino County3
- Menifee3
- Mentone3
- Mesa Verde3
- Millerton3
- Milpitas3
- Minkler3
- Mission Hills3
- Moorpark3
- Morro Bay3
- Mountain View, Santa Clara County3
- Murrieta3
- Muscoy3
- Needles3
- New Cuyama3
- Norco3
- Nuevo3
- Oak Park3
- Oildale3
- Ojai3
- Old Fig Garden3
- Orcutt3
- Orosi3
- Palm Desert3
- Palm Springs3
- Palo Alto3
- Parksdale3
- Parkwood3
- Pepperdine University3
- Perris3
- Piru3
- Planada3
- Plymouth3
- Poplar-Cotton Center3
- Porterville3
- Portola Valley3
- Potrero3
- Poway3
- Rainbow3
- Ramona3
- Rancho Calaveras3
- Rancho Cucamonga3
- Redlands3
- Rexland Acres3
- Rialto3
- Ridgemark3
- Riverside3
- Riverside County3
- Rolling Hills, Madera County3
- Romoland3
- Rosedale3
- Sacramento3
- San Bernardino3
- San Bernardino County3
- San Diego Country Estates3
- San Diego County3
- San Jacinto3
- San Jose3
- San Juan Bautista3
- San Luis Obispo3
- San Luis Obispo County3
- San Miguel, San Luis Obispo County3
- Sanger3
- Santa Barbara County3
- Santa Clara3
- Santa Clarita3
- Santa Maria3
- Santa Rosa Valley3
- Santa Ynez3
- Searles Valley3
- Shandon3
- Sisquoc3
- Solvang3
- Somis3
- South Dos Palos3
- South Taft3
- Springville3
- Stanford3
- Stevenson Ranch3
- Stratford3
- Strathmore3
- Sunnyside3
- Sunnyvale3
- Taft3
- Taft Heights3
- Talmage3
- Tarpey Village3
- Temecula3
- Temescal Valley3
- Terra Bella3
- Teviston3
- Thousand Oaks3
- Three Rivers3
- Tipton3
- Tooleville3
- Trona3
- Tulare County3
- Twentynine Palms3
- Ukiah3
- Valle Vista3
- Valley Center3
- Valley Springs3
- Vandenberg AFB3
- Vandenberg Village3
- Vista3
- Warm Springs3
- Wasco3
- Waukena3
- West Menlo Park3
- West Sacramento3
- Wildomar3
- Willits3
- Winchester3
- Windsor3
- Woodcrest3
- Woodlake3
- Woodville3
- Yermo3
- Yosemite Lakes3
- Alameda2
- Alameda County2
- Albion2
- Alhambra Valley2
- Amesti2
- Aptos Hills-Larkin Valley2
- Aromas2
- Atascadero2
- Atherton2
- Bay Point2
- Baywood Park2
- Beale Air Force Base2
- Beaumont2
- Belmont2
- Belvedere2
- Ben Lomond2
- Benicia2
- Bodega2
- Bodega Bay2
- Boonville2
- Boronda2
- Boulder Creek2
- Boyes Hot Springs2
- Bradley2
- Broadmoor2
- Brookdale2
- Buellton2
- Buttonwillow2
- Campo2
- Caspar2
- Castroville2
- Cherry Valley2
- Chino Hills2
- Cloverdale2
- Clyde2
- Colma2
- Comptche2
- Concord2
- Corralitos2
- Corte Madera2
- Cotati2
- Coto de Caza2
- Crockett2
- Daly City2
- Davenport2
- Del Norte County2
- Del Rey Oaks2
- Del Rio2
- Dillon Beach2
- Dublin2
- El Granada2
- El Sobrante, Contra Costa County2
- El Verano2
- Eldridge2
- Elkhorn2
- Emerald Lake Hills2
- Fairfield2
- Fairview2
- Fetters Hot Springs-Agua Caliente2
- Florin2
- Fort Bragg2
- Foster City2
- Freedom2
- Fremont2
- Garden Acres2
- Gasquet2
- Geyserville2
- Glen Ellen2
- Granite Bay2
- Graton2
- Green Valley, Los Angeles County2
- Green Valley, Solano County2
- Greenfield, Monterey County2
- Groveland2
- Half Moon Bay2
- Healdsburg2
- Hercules2
- Highlands2
- Hiouchi2
- Hollister2
- Hopland2
- Inverness2
- Kenwood2
- King City2
- Klamath County2
- La Honda2
- La Selva Beach2
- Lagunitas-Forest Knolls2
- Lake Forest2
- Lake San Marcos2
- Larkspur2
- Las Flores, Orange County2
- Las Lomas2
- Leona Valley2
- Lexington Hills2
- Little River2
- Loma Mar2
- Lompico2
- Loomis2
- Los Alamos2
- Los Berros2
- Los Gatos2
- Marin City2
- Marin County2
- Marina2
- Martinez2
- Mather2
- Maxwell2
- Mendocino2
- Mill Valley2
- Montalvin Manor2
- Montara2
- Monte Sereno2
- Monterey County2
- Morada2
- Moraga2
- Morgan Hill2
- Moss Beach2
- Moss Landing2
- Mount Hermon2
- Mountain View, Contra Costa County2
- Napa2
- Newark2
- Nicasio2
- North Fair Oaks2
- Oakland2
- Occidental2
- Orinda2
- Pacheco2
- Pacifica2
- Pajaro2
- Penngrove2
- Pescadero2
- Philo2
- Piedmont2
- Pine Canyon2
- Pinole2
- Pittsburg2
- Pleasant Hill2
- Pleasanton2
- Point Arena2
- Point Reyes Station2
- Potter Valley2
- Prunedale2
- Rancho Santa Margarita2
- Redwood City2
- Redwood Valley2
- Rio Dell2
- Rio Vista2
- Riverbank2
- Rocklin2
- Rodeo2
- Rohnert Park2
- Rollingwood2
- Rosemont2
- Sacramento County2
- Salinas2
- San Antonio Heights2
- San Ardo2
- San Carlos2
- San Francisco2
- San Marcos2
- San Martin2
- San Mateo2
- San Mateo County2
- San Pablo2
- Santa Margarita2
- Santa Rosa2
- Sausalito2
- Scotia2
- Scotts Valley2
- Sea Ranch2
- Seaside2
- Sebastopol2
- Sheridan2
- Solano2
- Soledad2
- Sonoma2
- Sonoma State University2
- Spreckels2
- Strawberry, Marin County2
- Suisun City2
- Sunol2
- Tamalpais-Homestead Valley2
- Tara Hills2
- Temelec2
- Tiburon2
- Timber Cove2
- Tomales2
- Valley Ford2
- Vine Hill2
- Vineyard2
- Watsonville2
- Wheatland2
- Woodside2
- Yucaipa2
- Zayante2
- Acalanes Ridge1
- Acampo1
- Acton1
- Adelanto1
- Adin1
- Agoura Hills1
- Agua Dulce1
- Aguanga1
- Ahwahnee1
- Airport1
- Alamo1
- Albany1
- Alhambra1
- Aliso Viejo1
- Allendale1
- Alondra Park1
- Alpine County1
- Alpine Village1
- Alta1
- Alta Sierra, Kern County1
- Alta Sierra, Nevada County1
- Altadena1
- Alturas1
- Amador1
- Amador City1
- Amador Pines1
- American Canyon1
- Anaheim1
- Anderson1
- Angels1
- Angwin1
- Antelope1
- Antioch1
- Anza1
- Apple Valley1
- Aptos1
- Arbuckle1
- Arcadia1
- Arcata1
- Arden-Arcade1
- Armona1
- Arnold1
- Arroyo Grande1
- Artesia1
- Arvin1
- Ashland1
- Atwater1
- Auberry1
- Auburn1
- Auburn Lake Trails1
- August1
- Avalon1
- Avery1
- Avila Beach1
- Avocado Heights1
- Azusa1
- Baldwin Park1
- Bass Lake1
- Bayview, Humboldt County1
- Bear Valley, Alpine County1
- Bear Valley, Mariposa County1
- Bear Valley Springs1
- Beckwourth1
- Bell1
- Bell Canyon1
- Bell Gardens1
- Bella Vista1
- Bellflower1
- Benbow1
- Bend1
- Benton1
- Berkeley1
- Bermuda Dunes1
- Berry Creek1
- Bertsch-Oceanview1
- Bethel Island1
- Beverly Hills1
- Bieber1
- Big Bear City1
- Big Bear Lake1
- Big Pine1
- Big River1
- Biggs1
- Bishop1
- Black Point-Green Point1
- Blackhawk1
- Blacklake1
- Blue Lake1
- Bodfish1
- Bolinas1
- Bonita1
- Bonny Doon1
- Bootjack1
- Boron1
- Borrego Springs1
- Bostonia1
- Bradbury1
- Brawley1
- Brea1
- Brentwood1
- Bret Harte1
- Bridgeport1
- Brisbane1
- Brooks1
- Buckhorn1
- Bucks Lake1
- Buena Park1
- Buena Vista1
- Burbank, Los Angeles County1
- Burlingame1
- Burney1
- Burnt Ranch1
- Butte1
- Butte Creek Canyon1
- Butte Meadows1
- Butte Valley1
- Byron1
- Bystrom1
- Calaveras1
- Calexico1
- California Pines1
- Calistoga1
- Callender1
- Calpine1
- Camanche Village1
- Cambria1
- Cameron Park1
- Camino1
- Camino Tassajara1
- Camp Nelson1
- Camp Pendleton Mainside1
- Camp Pendleton South1
- Campbell1
- Camptonville1
- Canby1
- Cantua Creek1
- Canyondam1
- Capitola1
- Carlsbad1
- Carmel-by-the-Sea1
- Carmel Valley Village1
- Carmet1
- Carmichael1
- Carnelian Bay1
- Carpinteria1
- Carson1
- Cartago1
- Caruthers1
- Casa de Oro-Mount Helix1
- Castaic1
- Castle Hill1
- Castro Valley1
- Catheys Valley1
- Cazadero1
- Cedar Flat1
- Cedar Ridge1
- Centerville, Shasta County1
- Ceres1
- Cerritos1
- Chalfant1
- Challenge-Brownsville1
- Channel Islands Beach1
- Charter Oak1
- Cherryland1
- Chester1
- China Lake Acres1
- Chino1
- Chowchilla1
- Chula Vista1
- Citrus1
- Citrus Heights1
- Claremont1
- Clarksburg1
- Clay1
- Clayton1
- Clearlake1
- Clearlake Oaks1
- Clearlake Riviera1
- Clio1
- Clipper Mills1
- Coachella1
- Cobb1
- Coffee Creek1
- Cohasset1
- Cold Springs, El Dorado County1
- Cold Springs, Tuolumne County1
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- Colfax1
- Collierville1
- Coloma1
- Columbia1
- Colusa1
- Colusa County1
- Commerce1
- Compton1
- Concow1
- Contra Costa Centre1
- Contra Costa County1
- Corning1
- Coronado1
- Costa Mesa1
- Cottonwood, Shasta County1
- Country Club1
- Courtland1
- Covina1
- Cowan1
- Crescent City1
- Crest1
- Crestline1
- Cromberg1
- Crowley Lake1
- Cudahy1
- Culver City1
- Cupertino1
- Cutten1
- Cypress1
- Dana Point1
- Danville1
- Davis1
- Day Valley1
- Deer Park1
- Del Aire1
- Del Mar1
- Del Monte Forest1
- Delano1
- Delhi1
- Denair1
- Descanso1
- Desert Edge1
- Desert Shores1
- Desert View Highlands1
- Diablo1
- Diamond Bar1
- Diamond Springs1
- Dinuba1
- Discovery Bay1
- Dixon1
- Dixon Lane-MeadowCreek1
- Dobbins1
- Dogtown1
- Dollar Point1
- Dorrington1
- Dorris1
- Downey1
- Downieville1
- Duarte1
- Dunnigan1
- Durham1
- Dutch Flat1
- East Los Angeles1
- East Nicolaus1
- East Oakdale1
- East Palo Alto1
- East Pasadena1
- East Quincy1
- East Rancho Dominguez1
- East Richmond Heights1
- East San Gabriel1
- East Shore1
- East Sonora1
- East Whittier1
- Eastern Goleta Valley1
- Eastvale1
- Edwards Air Force Base1
- El Cajon1
- El Centro1
- El Cerrito, Contra Costa County1
- El Dorado County1
- El Dorado Hills1
- El Macero1
- El Monte, Contra Costa County1
- El Portal1
- El Rio1
- El Segundo1
- Elk Creek1
- Elk Grove1
- Elmira1
- Elverta1
- Emeryville1
- Empire1
- Encinitas1
- Escalon1
- Esparto1
- Etna1
- Eucalyptus Hills1
- Eureka1
- Fair Oaks1
- Fairbanks Ranch1
- Fairfax, Marin County1
- Fairmead1
- Farmington1
- Felton1
- Ferndale1
- Fieldbrook1
- Fields Landing1
- Fish Camp1
- Florence-Graham1
- Folsom1
- Foothill Farms1
- Forest Meadows1
- Forest Ranch1
- Foresta1
- Foresthill1
- Forestville1
- Fort Bidwell1
- Fort Irwin1
- Fort Jones1
- Fortuna1
- Fountain Valley1
- Franklin, Merced County1
- Franklin, Sacramento County1
- Frazier Park1
- French Camp1
- French Gulch1
- Fruitridge Pocket1
- Fullerton1
- Galt1
- Garberville1
- Garden Grove1
- Gardena1
- Garnet1
- Georgetown1
- Gerber1
- Gilroy1
- Glendale1
- Glendora1
- Glenn1
- Gold Mountain1
- Gold River1
- Golden Hills1
- Goleta1
- Goshen1
- Graeagle1
- Granite Hills1
- Grass Valley1
- Grayson1
- Greenview1
- Greenville1
- Grenada1
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- Grizzly Flats1
- Grover Beach1
- Guadalupe1
- Guerneville1
- Guinda1
- Gustine1
- Hacienda Heights1
- Hamilton Branch1
- Hanford1
- Happy Camp1
- Happy Valley1
- Hardwick1
- Hartland1
- Hartley1
- Hasley Canyon1
- Hathaway Pines1
- Hawaiian Gardens1
- Hawthorne1
- Hayfork1
- Heber1
- Herald1
- Hermosa Beach1
- Hesperia1
- Hidden Hills1
- Hidden Valley Lake1
- Hillsborough1
- Hilmar-Irwin1
- Holtville1
- Home Garden1
- Homestead Valley1
- Hoopa1
- Hornbrook1
- Hughson1
- Humboldt County1
- Humboldt Hill1
- Huntington Beach1
- Huntington Park1
- Hydesville1
- Idlewild1
- Idyllwild-Pine Cove1
- Igo1
- Imperial1
- Imperial Beach1
- Imperial County1
- Independence1
- Indian Wells1
- Indianola1
- Indio1
- Inglewood1
- Interlaken1
- Inyo County1
- Inyokern1
- Iron Horse1
- Irvine1
- Irwindale1
- Isla Vista1
- Isleton1
- Jackson1
- Jamestown1
- Jamul1
- Janesville1
- Jenner1
- Johnstonville1
- Johnsville1
- Julian1
- June Lake1
- Keeler1
- Kelly Ridge1
- Kelseyville1
- Kennedy1
- Kensington1
- Kentfield1
- Kep'el1
- Kerman1
- Kern1
- Kernville1
- Keyes1
- Kings Beach1
- Kingsburg1
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- La Habra1
- La Habra Heights1
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- Lake Almanor Country Club1
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- Lakehead1
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- Lakeside, San Diego County1
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- Lancaster1
- Lathrop1
- Laton1
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- Laytonville1
- Lebec1
- Lee Vining1
- Leggett1
- Lemon Grove1
- Lemon Hill1
- Lennox1
- Lewiston1
- Lincoln1
- Lincoln Village1
- Linda1
- Linden1
- Little Grass Valley1
- Littlerock1
- Live Oak CDP1
- Live Oak, Sutter County1
- Livingston1
- Lockeford1
- Lockwood, Amador County1
- Lockwood, Monterey County1
- Lodi1
- Loma Linda1
- Loma Rica1
- Lomita1
- London1
- Lone Pine1
- Long Barn1
- Long Beach1
- Lookout1
- Los Alamitos1
- Los Angeles1
- Los Angeles County1
- Los Banos1
- Los Molinos1
- Los Olivos1
- Los Osos1
- Lower Lake1
- Loyalton1
- Lucas Valley-Marinwood1
- Lucerne1
- Lucerne Valley1
- Lynwood1
- Macdoel1
- Madeline1
- Madison1
- Magalia1
- Malibu1
- Mammoth Lakes1
- Manchester1
- Manhattan Beach1
- Manila1
- Manteca1
- Manton1
- March ARB1
- Marina del Rey1
- Mariposa1
- Mariposa County1
- Markleeville1
- Martell1
- Marysville1
- Matheny1
- Mayflower Village1
- Maywood1
- McArthur1
- McClellan Park1
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- McSwain1
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- Mecca1
- Meiners Oaks1
- Mendota1
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- Merced1
- Merced County1
- Mesa1
- Mesa Vista1
- Meyers1
- Mi-Wuk Village1
- Middletown1
- Midpines1
- Midway City1
- Millbrae1
- Millville1
- Mineral1
- Mira Monte1
- Mission Canyon1
- Mission Viejo1
- Modesto1
- Modjeska1
- Modoc County1
- Mojave1
- Mono1
- Mono Vista1
- Monrovia1
- Montague1
- Montclair1
- Monte Rio1
- Montecito1
- Monterey1
- Monterey Park1
- Montgomery Creek1
- Monument Hills1
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- Mount Shasta1
- Mountain Gate1
- Mountain House1
- Mountain Ranch1
- Mountain View Acres1
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- Napa County1
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- Oakdale1
- Oakhurst1
- Oakley1
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- Ocotillo1
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- Old Station1
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- Ontario1
- Onyx1
- Orange1
- Orange County1
- Orange Cove1
- Orangevale1
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- Oroville East1
- Oxnard1
- Pacific Grove1
- Palermo1
- Palmdale1
- Palo Cedro1
- Palos Verdes Estates1
- Paradise, Paradise County1
- Paradise Park1
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- Parklawn1
- Parkway1
- Parlier1
- Pasadena1
- Pasatiempo1
- Paso Robles1
- Patterson Tract1
- Penn Valley1
- Petaluma1
- Phelan1
- Phoenix Lake1
- Pico Rivera1
- Pike1
- Pine Flat1
- Pine Grove1
- Pine Hills1
- Pine Mountain Club1
- Pine Mountain Lake1
- Pine Valley1
- Piñon Hills1
- Pioneer1
- Pismo Beach1
- Pixley1
- Placentia1
- Placer County1
- Placerville1
- Platina1
- Pleasure Point1
- Plumas1
- Plumas Lake1
- Pollock Pines1
- Pomona1
- Port Hueneme1
- Portola1
- Quartz Hill1
- Quincy1
- Rail Road Flat1
- Raisin City1
- Rancho Cordova1
- Rancho Mirage1
- Rancho Mission Viejo1
- Rancho Murieta1
- Rancho Palos Verdes1
- Rancho San Diego1
- Rancho Santa Fe1
- Rancho Tehama Reserve1
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- Red Bluff1
- Red Corral1
- Redding1
- Redondo Beach1
- Redway1
- Reedley1
- Reliez Valley1
- Richgrove1
- Richmond1
- Ridgecrest1
- Rio del Mar1
- Rio Linda1
- Ripon1
- Riverdale1
- Riverdale Park1
- Robbins1
- Rolling Hills Estates1
- Rolling Hills, Los Angeles County1
- Rosamond1
- Rosemead1
- Roseville1
- Ross1
- Rossmoor1
- Rough and Ready1
- Round Valley1
- Rouse1
- Rowland Heights1
- Running Springs1
- Rutherford1
- Salida1
- San Andreas1
- San Anselmo1
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