Pollen count and allergy info for Ontario
Ontario pollen and allergy report • 15:00, Jun 9
Index
Moderate
Tree
Low
Grass
Moderate
Weed
None
27°
20 km/h
43%Daily allergy forecast
Ontario pollen count forecast
Today  24 km/h 33°18° 45% | Wednesday 23 km/h35°19° 38% | Thursday 20 km/h 38°28° 21% |
Air pollutants
Air quality in Ontario today
AQI⁺
Air quality index
60AQI⁺ US
PM2.5
Fine particles (≤ 2.5 µm)
13.7µg/m³
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Where is the highest pollen level in California?
- Adelanto3
- Agoura Hills3
- Aguanga3
- Ahwahnee3
- Alhambra3
- Alhambra Valley3
- Allensworth3
- Alpaugh3
- Alpine3
- Alpine County3
- Alpine Village3
- Alta Sierra, Nevada County3
- Altadena3
- Amador3
- Amador City3
- Amador Pines3
- Anaheim3
- Angels3
- Anza3
- Apple Valley3
- Arcadia3
- Arnold3
- Aromas3
- Artesia3
- Ashland3
- Auberry3
- Auburn Lake Trails3
- Avery3
- Avocado Heights3
- Azusa3
- Baldwin Park3
- Bass Lake3
- Bay Point3
- Bear Valley, Mariposa County3
- Bell3
- Bell Gardens3
- Bellflower3
- Benicia3
- Benton3
- Big Bear City3
- Big Bear Lake3
- Big Pine3
- Bishop3
- Black Point-Green Point3
- Bodfish3
- Bonita3
- Bonsall3
- Bootjack3
- Boronda3
- Bostonia3
- Bradbury3
- Brea3
- Bridgeport3
- Broadmoor3
- Buckhorn3
- Buellton3
- Buena Park3
- Buena Vista3
- Burbank, Los Angeles County3
- Burney3
- Calaveras3
- Camanche Village3
- Camarillo3
- Cameron Park3
- Camino3
- Camp Pendleton Mainside3
- Canyon Lake3
- Carmel-by-the-Sea3
- Carmel Valley Village3
- Carmet3
- Carnelian Bay3
- Carson3
- Cartago3
- Casa Conejo3
- Casa de Oro-Mount Helix3
- Castro Valley3
- Castroville3
- Cayucos3
- Cedar Flat3
- Cedar Ridge3
- Cerritos3
- Challenge-Brownsville3
- Charter Oak3
- Cherryland3
- Chino Hills3
- Chula Vista3
- Citrus3
- Clipper Mills3
- Clyde3
- Coarsegold3
- Coffee Creek3
- Cold Springs, Tuolumne County3
- Coleville3
- Colfax3
- Colma3
- Coloma3
- Columbia3
- Commerce3
- Compton3
- Concord3
- Corcoran3
- Costa Mesa3
- Cotati3
- Coto de Caza3
- Covina3
- Crest3
- Crestline3
- Crockett3
- Cromberg3
- Cudahy3
- Cuyama3
- Cypress3
- Daly City3
- Del Dios3
- Del Mar3
- Del Monte Forest3
- Del Norte County3
- Del Rey3
- Del Rey Oaks3
- Del Rio3
- Descanso3
- Desert View Highlands3
- Diamond Bar3
- Diamond Springs3
- Dixon Lane-MeadowCreek3
- Dobbins3
- Dollar Point3
- Dorrington3
- Downey3
- Downieville3
- Duarte3
- East Los Angeles3
- East Palo Alto3
- East Pasadena3
- East Quincy3
- East Rancho Dominguez3
- East San Gabriel3
- East Sonora3
- East Whittier3
- Edna3
- El Cajon3
- El Dorado County3
- El Dorado Hills3
- El Monte, Contra Costa County3
- El Portal3
- El Sobrante, Contra Costa County3
- Elk Creek3
- Elkhorn3
- Escondido3
- Etna3
- Eucalyptus Hills3
- Fairbanks Ranch3
- Fairfax, Marin County3
- Fairview3
- Fallbrook3
- Fillmore3
- Florence-Graham3
- Ford City3
- Forest Meadows3
- Foresta3
- Foresthill3
- Frazier Park3
- Fullerton3
- Fulton3
- Galt3
- Garden Grove3
- Gasquet3
- Gilroy3
- Glendale3
- Golden Hills3
- Gonzales3
- Granite Hills3
- Graton3
- Greenfield, Monterey County3
- Greenview3
- Grenada3
- Groveland3
- Guerneville3
- Gustine3
- Hacienda Heights3
- Harbison Canyon3
- Hathaway Pines3
- Hawaiian Gardens3
- Hercules3
- Hesperia3
- Hidden Meadows3
- Hiouchi3
- Hollister3
- Homestead Valley3
- Huntington Park3
- Idlewild3
- Idyllwild-Pine Cove3
- Imperial Beach3
- Independence3
- Interlaken3
- Inyo County3
- Irvine3
- Irwindale3
- Jackson3
- Jamestown3
- Jamul3
- Jenner3
- Julian3
- Keeler3
- Kentfield3
- Kern3
- Kernville3
- Kettleman City3
- Klamath County3
- La Cañada Flintridge3
- La Crescenta-Montrose3
- La Habra3
- La Habra Heights3
- La Honda3
- La Mesa3
- La Mirada3
- La Palma3
- La Presa3
- La Puente3
- Ladera3
- Lagunitas-Forest Knolls3
- Lake Arrowhead3
- Lake Elsinore3
- Lake Forest3
- Lake Isabella3
- Lake Nacimiento3
- Lake of the Pines3
- Lake Riverside3
- Lake Shastina3
- Lake Sherwood3
- Lake Wildwood3
- Lakeland Village3
- Lakeside, San Diego County3
- Lakewood3
- Lamont3
- Larkfield-Wikiup3
- Las Flores, Orange County3
- Las Lomas3
- Lebec3
- Lee Vining3
- Lemon Grove3
- Lexington Hills3
- Lockwood, Amador County3
- Lockwood, Monterey County3
- Loma Mar3
- Lone Pine3
- Long Barn3
- Long Beach3
- Los Alamitos3
- Los Alamos3
- Los Angeles County3
- Los Berros3
- Los Gatos3
- Los Olivos3
- Lucas Valley-Marinwood3
- Lynwood3
- Madera County3
- Mariposa3
- Mariposa County3
- Markleeville3
- Martell3
- Martinez3
- Mayflower Village3
- Maywood3
- McCloud3
- Meadow Vista3
- Meadowbrook3
- Meiners Oaks3
- Menlo Park3
- Mesa3
- Mesa Vista3
- Mi-Wuk Village3
- Midpines3
- Mira Monte3
- Mission Canyon3
- Mission Hills3
- Modjeska3
- Mojave3
- Mokelumne Hill3
- Mono Vista3
- Monrovia3
- Montalvin Manor3
- Monte Rio3
- Monte Sereno3
- Montebello3
- Monterey3
- Monterey Park3
- Moorpark3
- Morgan Hill3
- Morro Bay3
- Mount Shasta3
- Mountain View Acres3
- Mountain View, Contra Costa County3
- Muir Beach3
- Murphys3
- Napa County3
- Nevada County3
- New Cuyama3
- Newman3
- North El Monte3
- North Fork3
- North San Juan3
- North Tustin3
- Norwalk3
- Novato3
- Oak Park3
- Oak View3
- Oakhurst3
- Occidental3
- Ojai3
- Olancha3
- Old Station3
- Onyx3
- Orange3
- Orange County3
- Orcutt3
- Pacheco3
- Pacific Grove3
- Pajaro3
- Palmdale3
- Paramount3
- Pasadena3
- Penn Valley3
- Penngrove3
- Phelan3
- Phoenix Lake3
- Pico Rivera3
- Pine Flat3
- Pine Grove3
- Pine Mountain Club3
- Pine Mountain Lake3
- Pine Valley3
- Pinole3
- Piñon Hills3
- Placentia3
- Placer County3
- Placerville3
- Pleasant Hill3
- Plumas3
- Point Reyes Station3
- Pollock Pines3
- Portola Valley3
- Potrero3
- Poway3
- Prunedale3
- Quincy3
- Rancho Murieta3
- Rancho San Diego3
- Rancho Santa Fe3
- Rancho Santa Margarita3
- Ridgemark3
- Rio Dell3
- River Pines3
- Rodeo3
- Rohnert Park3
- Rollingwood3
- Rosamond3
- Rosemead3
- Ross3
- Rossmoor3
- Round Valley3
- Rowland Heights3
- Running Springs3
- Salinas3
- San Andreas3
- San Anselmo3
- San Benito County3
- San Gabriel3
- San Juan Bautista3
- San Lorenzo3
- San Marino3
- San Martin3
- San Miguel, San Luis Obispo County3
- San Pablo3
- San Pasqual3
- San Rafael3
- Sanger3
- Santa Ana3
- Santa Clara County3
- Santa Fe Springs3
- Santa Maria3
- Santa Paula3
- Santa Rosa Valley3
- Santa Susana3
- Santa Venetia3
- Santee3
- Saticoy3
- Scotia3
- Scotts Valley3
- Seal Beach3
- Seaside3
- Sebastopol3
- Sereno del Mar3
- Shaver Lake3
- Shelter Cove3
- Shingle Springs3
- Shingletown3
- Sierra Madre3
- Signal Hill3
- Simi Valley3
- Siskiyou County3
- Sisquoc3
- Sleepy Hollow3
- Solana Beach3
- Somis3
- Sonoma State University3
- Sonora3
- Soulsbyville3
- South El Monte3
- South Gate3
- South Pasadena3
- South San Gabriel3
- South San Jose Hills3
- South Taft3
- South Whittier3
- Spreckels3
- Spring Valley Lake3
- Spring Valley, San Diego County3
- Stanford3
- Stanton3
- Strawberry, Tuolumne County3
- Sun Village3
- Sunnyside-Tahoe City3
- Sutter Creek3
- Swall Meadows3
- Taft Heights3
- Tahoe Vista3
- Tahoma3
- Tara Hills3
- Tehachapi3
- Temecula3
- Temple City3
- Thousand Oaks3
- Three Rivers3
- Tomales3
- Trabuco Canyon3
- Trinity Center3
- Tuolumne County3
- Tustin3
- Twin Lakes, Mono County3
- Valinda3
- Vallecito3
- Valley Center3
- Ventura3
- Vernon3
- Victorville3
- Villa Park3
- Vincent3
- Vine Hill3
- Virginia Lakes3
- Vista3
- Volcano3
- Walker3
- Walnut3
- Walnut Park3
- Warm Springs3
- Waukena3
- Weed3
- Weldon3
- West Bishop3
- West Covina3
- West Menlo Park3
- West Puente Valley3
- West Whittier-Los Nietos3
- Westlake Village3
- Westminster3
- Whittier3
- Wilkerson3
- Willowbrook3
- Windsor3
- Winter Gardens3
- Woodacre3
- Wrightwood3
- Yorba Linda3
- Yosemite Valley3
- Yucca Valley3
- Zayante3
- Acalanes Ridge2
- Acampo2
- Acton2
- Adin2
- Agua Dulce2
- Alameda2
- Alameda County2
- Alamo2
- Albany2
- Albion2
- Aliso Viejo2
- Allendale2
- Alta2
- Alta Sierra, Kern County2
- Alturas2
- Alum Rock2
- American Canyon2
- Amesti2
- Anderson2
- Angwin2
- Antelope2
- Antioch2
- Aptos2
- Aptos Hills-Larkin Valley2
- Arbuckle2
- Arcata2
- Arden-Arcade2
- Armona2
- Arroyo Grande2
- Arvin2
- Atascadero2
- Atherton2
- Atwater2
- Auburn2
- August2
- Avenal2
- Avila Beach2
- Baker2
- Bakersfield2
- Bakersfield Country Club2
- Banning2
- Barstow2
- Baywood Park2
- Beale Air Force Base2
- Bear Valley, Alpine County2
- Bear Valley Springs2
- Beaumont2
- Beckwourth2
- Bella Vista2
- Belmont2
- Belvedere2
- Ben Lomond2
- Bend2
- Benton Park2
- Berkeley2
- Bermuda Dunes2
- Berry Creek2
- Bertsch-Oceanview2
- Bethel Island2
- Beverly Hills2
- Big River2
- Biggs2
- Biola2
- Blackhawk2
- Blacklake2
- Bloomington2
- Blue Lake2
- Blythe2
- Bodega2
- Bodega Bay2
- Bonadelle Ranchos2
- Boron2
- Borrego Springs2
- Boulder Creek2
- Boyes Hot Springs2
- Brawley2
- Brentwood2
- Bret Harte2
- Brisbane2
- Brookdale2
- Brooks2
- Brooktrails2
- Burlingame2
- Butte2
- Butte Creek Canyon2
- Butte Valley2
- Buttonwillow2
- Byron2
- Bystrom2
- Cabazon2
- Calabasas2
- Calexico2
- California City2
- California Pines2
- California Polytechnic State University2
- Calimesa2
- Calipatria2
- Calistoga2
- Calpine2
- Cambria2
- Cambrian Park2
- Camino Tassajara2
- Camp Nelson2
- Camp Pendleton South2
- Campbell2
- Campo2
- Camptonville2
- Canby2
- Canyondam2
- Carlsbad2
- Carmichael2
- Carpinteria2
- Caruthers2
- Caspar2
- Castaic2
- Castle Hill2
- Cathedral City2
- Catheys Valley2
- Centerville, Fresno County2
- Centerville, Shasta County2
- Ceres2
- Channel Islands Beach2
- Cherry Valley2
- Chester2
- Chico2
- China Lake Acres2
- Chinese Camp2
- Chino2
- Chowchilla2
- Chualar2
- Citrus Heights2
- Claremont2
- Clarksburg2
- Clay2
- Clayton2
- Clearlake2
- Clearlake Oaks2
- Clearlake Riviera2
- Clio2
- Cloverdale2
- Clovis2
- Coachella2
- Coalinga2
- Cobb2
- Cohasset2
- Collierville2
- Colton2
- Colusa2
- Colusa County2
- Comptche2
- Concow2
- Contra Costa Centre2
- Contra Costa County2
- Copperopolis2
- Corning2
- Corona2
- Coronado2
- Coronita2
- Corralitos2
- Corte Madera2
- Cottonwood, Shasta County2
- Country Club2
- Courtland2
- Covelo2
- Crescent City2
- Creston2
- Crowley Lake2
- Cupertino2
- Cutler2
- Dana Point2
- Danville2
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- Deer Park2
- Delano2
- Delhi2
- Denair2
- Desert Center2
- Desert Edge2
- Desert Hot Springs2
- Desert Palms2
- Diablo2
- Dillon Beach2
- Dinuba2
- Discovery Bay2
- Dixon2
- Dogtown2
- Dorris2
- Dos Palos2
- Dublin2
- Dunnigan2
- Dunsmuir2
- Durham2
- Dutch Flat2
- Earlimart2
- East Foothills2
- East Hemet2
- East Oakdale2
- East Porterville2
- East Richmond Heights2
- East Shore2
- Eastern Goleta Valley2
- Easton2
- Eastvale2
- Edwards Air Force Base2
- El Centro2
- El Cerrito, Contra Costa County2
- El Granada2
- El Rio2
- El Verano2
- Eldridge2
- Elk Grove2
- Elmira2
- Elverta2
- Emerald Lake Hills2
- Emeryville2
- Empire2
- Encinitas2
- Escalon2
- Esparto2
- Exeter2
- Fair Oaks2
- Fairfield2
- Fairmead2
- Farmersville2
- Farmington2
- Ferndale2
- Fetters Hot Springs-Agua Caliente2
- Fiddletown2
- Fieldbrook2
- Firebaugh2
- Fish Camp2
- Florin2
- Folsom2
- Fontana2
- Foothill Farms2
- Forest Ranch2
- Forestville2
- Fort Bidwell2
- Fort Bragg2
- Fort Irwin2
- Fort Jones2
- Fortuna2
- Foster City2
- Fountain Valley2
- Fowler2
- Franklin, Sacramento County2
- Freedom2
- Fremont2
- French Camp2
- French Gulch2
- French Valley2
- Fresno2
- Fresno County2
- Friant2
- Fruitdale2
- Fruitridge Pocket2
- Garden Acres2
- Garnet2
- Georgetown2
- Gerber2
- Geyserville2
- Glen Ellen2
- Glendora2
- Glenn2
- Gold Mountain2
- Gold River2
- Goleta2
- Good Hope2
- Goshen2
- Graeagle2
- Grand Terrace2
- Granite Bay2
- Grass Valley2
- Grayson2
- Green Acres2
- Green Valley, Los Angeles County2
- Green Valley, Solano County2
- Greenacres2
- Greenville2
- Grimes2
- Grizzly Flats2
- Grover Beach2
- Guinda2
- Half Moon Bay2
- Hamilton Branch2
- Hanford2
- Happy Valley2
- Hartland2
- Hartley2
- Hasley Canyon2
- Hayfork2
- Hayward2
- Healdsburg2
- Heber2
- Hemet2
- Herald2
- Hidden Hills2
- Hidden Valley Lake2
- Highgrove2
- Highland2
- Highlands2
- Hillsborough2
- Hilmar-Irwin2
- Holtville2
- Home Garden2
- Home Gardens2
- Homeland2
- Hoopa2
- Hopland2
- Hornbrook2
- Hornitos2
- Hughson2
- Humboldt County2
- Huntington Beach2
- Huron2
- Hydesville2
- Igo2
- Imperial2
- Imperial County2
- Indian Wells2
- Indio2
- Inglewood2
- Inverness2
- Inyokern2
- Ione2
- Iron Horse2
- Isla Vista2
- Isleton2
- Ivanhoe2
- Janesville2
- Johnstonville2
- Johnsville2
- Joshua Tree2
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- Jurupa Valley2
- Kelly Ridge2
- Kelseyville2
- Kennedy2
- Kensington2
- Kenwood2
- Kerman2
- Keyes2
- King City2
- Kings2
- Kings Beach2
- Kingsburg2
- Kirkwood2
- Knightsen2
- La Cresta2
- La Quinta2
- La Riviera2
- La Selva Beach2
- La Verne2
- Ladera Ranch2
- Lafayette2
- Laguna Beach2
- Laguna Hills2
- Laguna Niguel2
- Laguna Woods2
- Lake Almanor Country Club2
- Lake Almanor West2
- Lake California2
- Lake County2
- Lake Don Pedro2
- Lake Los Angeles2
- Lake San Marcos2
- Lakehead2
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- Lassen County2
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- Le Grand2
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- Lemoore Station2
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- Lincoln Village2
- Linda2
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- London2
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- Modoc County2
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- Montgomery Creek2
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- Moreno Valley2
- Morongo Valley2
- Moss Beach2
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- Mountain Gate2
- Mountain House2
- Mountain Ranch2
- Mountain View, Santa Clara County2
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- Old Fig Garden2
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- Oroville East2
- Oxnard2
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- Palo Alto2
- Palo Cedro2
- Palos Verdes Estates2
- Paradise, Paradise County2
- Parklawn2
- Parksdale2
- Parkway2
- Parkwood2
- Parlier2
- Paso Robles2
- Patterson Tract2
- Pepperdine University2
- Perris2
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- Riverside County2
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- Rolling Hills, Los Angeles County2
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- Roseville2
- Rough and Ready2
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- Sacramento2
- Sacramento County2
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- San Diego Country Estates2
- San Diego County2
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- San Francisco2
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- San Jose2
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- San Luis Obispo County2
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- San Mateo County2
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- Santa Clara2
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- Santa Monica2
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- Sonoma County2
- Soquel2
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- South Lake Tahoe2
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- Spring Valley, Lake County2
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- Squaw Valley2
- St. Helena2
- Stallion Springs2
- Stanislaus2
- Stevenson Ranch2
- Stirling City2
- Stockton2
- Stonyford2
- Stratford2
- Strathmore2
- Strawberry, Marin County2
- Suisun City2
- Summerland2
- Sunny Slopes2
- Sunnyside2
- Sunnyvale2
- Sunol2
- Susanville2
- Sutter2
- Sutter County2
- Taft2
- Taft Mosswood2
- Talmage2
- Tamalpais-Homestead Valley2
- Tancred2
- Tarpey Village2
- Taylorsville2
- Tehama County2
- Temelec2
- Temescal Valley2
- Templeton2
- Tennant2
- Terra Bella2
- Teviston2
- Thermal2
- Thermalito2
- Thornton2
- Thousand Palms2
- Tiburon2
- Tipton2
- Tooleville2
- Topanga2
- Toro Canyon2
- Torrance2
- Tracy2
- Tranquillity2
- Trinidad2
- Trinity2
- Trona2
- Truckee2
- Tulare County2
- Tulelake2
- Tuolumne City2
- Turlock2
- Twain Harte2
- Twentynine Palms2
- Ukiah2
- Union City2
- University of California-Santa Barbara2
- Upland2
- Upper Lake2
- Vacaville2
- Val Verde2
- Valle Vista2
- Vallejo2
- Valley Ford2
- Valley Springs2
- Vandenberg AFB2
- Vandenberg Village2
- Verdi2
- View Park-Windsor Hills2
- Vina2
- Vineyard2
- Visalia2
- Vista Santa Rosa2
- Walnut Creek2
- Walnut Grove2
- Washington2
- Waterford2
- Watsonville2
- Wawona2
- Weedpatch2
- Weitchpec2
- West Carson2
- West Hollywood2
- West Modesto2
- West Park2
- West Point2
- West Sacramento2
- Westhaven-Moonstone2
- Westley2
- Westmorland2
- Westwood2
- Wheatland2
- Whitehawk2
- Whitmore2
- Wildomar2
- Williams2
- Willits2
- Willow Creek2
- Willows2
- Wilsonia2
- Wilton2
- Winchester2
- Winterhaven2
- Winters2
- Winton2
- Wofford Heights2
- Woodbridge2
- Woodcrest2
- Woodlake2
- Woodland2
- Woodside2
- Woodville2
- Yermo2
- Yolo2
- Yolo County2
- Yosemite Lakes2
- Yosemite West2
- Yountville2
- Yreka2
- Yuba2
- Yuba City2
- Yucaipa2
- Alondra Park1
- Avalon1
- Bayview, Humboldt County1
- Benbow1
- Bolinas1
- Bonny Doon1
- Boonville1
- Butte Meadows1
- Callender1
- Cantua Creek1
- Capitola1
- Culver City1
- Cutten1
- Del Aire1
- Desert Shores1
- El Segundo1
- Eureka1
- Felton1
- Fields Landing1
- Garberville1
- Gardena1
- Guadalupe1
- Happy Camp1
- Hawthorne1
- Hermosa Beach1
- Humboldt Hill1
- Indianola1
- Kep'el1
- Ladera Heights1
- Lawndale1
- Lennox1
- Lewiston1
- Live Oak CDP1
- Los Angeles1
- Manhattan Beach1
- Myrtletown1
- National City1
- Paradise Park1
- Pasatiempo1
- Pine Hills1
- Pleasure Point1
- Redondo Beach1
- Redway1
- Salton City1
- San Buenaventura (Ventura)1
- Santa Cruz1
- Santa Cruz County1
- Stinson Beach1
- Twin Lakes, Santa Cruz County1
- Wasco1
- Weaverville1
- West Athens1
- West Rancho Dominguez1
- Westmont1
- Woodlands1
