Pollen count and allergy info for Santa Clarita
Santa Clarita pollen and allergy report • 12:00, Apr 23
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Moderate
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Daily allergy forecast
Santa Clarita pollen count forecast
Today 20 km/h25°10° 39% | Friday 21 km/h22°13° 58% | Saturday 29 km/h18°11° 69% |
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How does the pollen count in Santa Clarita, California compare between different times of the day?
Understanding the dynamics of pollen counts in Santa Clarita is vital, especially for individuals prone to allergies. Observations indicate that pollen concentrations exhibit notable variation during the day, with distinct patterns emerging at different times.
At the start of the day, from dawn to mid-morning, pollen counts are at their peak. This spike is primarily due to the overnight accumulation of pollen and the morning release by plants. Most plants, including trees, grasses, and a variety of weeds, begin to release pollen at first light. The still morning air means that the pollen is not yet widely dispersed, leading to higher concentration levels near the source.
As the sun rises and the day warms, thermal updrafts begin to form, and breezes pick up. These winds play a crucial role in the dispersal of pollen, carrying it over various distances. This distribution can cause a reduction in pollen density in localized areas, although this is not always immediate or consistent across different zones in Santa Clarita. However, it's not unusual to observe a midday lull in pollen counts, as the increased air movement helps to disperse the pollen more evenly throughout the atmosphere.
Contrary to what one might expect, the pollen count often experiences another surge in the late afternoon. The temperature rise towards the afternoon can trigger more plants to release pollen, and the receding heat of the day can sometimes create favourable conditions for pollen to settle at ground level, leading to increased concentrations. Moreover, the activities of insects, particularly bees and butterflies, which are active pollinators during these hours, can also contribute to the increased pollen levels.
Human activities, such as construction work, landscaping, and traffic, can significantly affect pollen distribution, especially during peak commuting hours. The agitation of air and disturbance of vegetation by vehicles and machinery can lift settled pollen back into the air, increasing the count. Consequently, areas with high levels of human activity can experience fluctuating pollen levels throughout the day.
As evening approaches, the cooling temperatures and settling air currents can lead to a decrease in pollen counts. The absence of sunlight halts the release of pollen, and the stabilising atmosphere allows the pollen to settle, reducing the overall count. Night-time often brings the lowest pollen levels of the day, offering a respite to those with allergies.
Individuals with allergies are advised to monitor real-time pollen counts, which are available through various online platforms and local news outlets. These resources provide updates that can help in planning outdoor activities and in taking necessary precautions to manage allergy symptoms effectively. Awareness of the daily patterns can be a crucial tool for those looking to minimise exposure to pollen and its associated effects on health.
What are the seasonal differences in the pollen count in Santa Clarita, California?
In Santa Clarita, the pollen count undergoes significant shifts as the seasons change, each phase presenting its unique challenges to those sensitive to pollen.
During spring, which spans from March to May, Santa Clarita witnesses the most pronounced rise in pollen levels. This is when a variety of trees enter their pollination phase. Oaks, elms, and maples are particularly prolific producers of pollen during this time. The fine particles are designed to be carried by the wind, and as these trees bloom en masse, the air becomes heavily laden with pollen.
Following spring, the late spring and early summer months, typically from late May through June, transition the pollen source primarily to grasses. The grass pollen season can cause discomfort for many as these plants are widespread, not just in rural areas but also in urban settings, including lawns, parks, and grasslands. This period often sees a sustained high pollen count, as the warm weather and longer days favour grass growth and pollen release.
As summer progresses into its later stages, from July to September, the pollen profile of Santa Clarita changes again. The focus shifts from grasses to weeds. Weeds such as sagebrush and ragweed become the dominant pollen producers. These plants are hardy and can thrive in the hot, dry summer conditions typical of the region. They continue to release pollen into the air, which can extend the discomfort for allergy sufferers well into the season.
With the advent of autumn, from October to November, the region sees a general decline in pollen counts. This is due to cooler temperatures and the life cycle of plants as they prepare for dormancy. However, it is not a complete reprieve, as some weeds continue to pollinate, and if conditions are right, certain trees and grasses can have a second, though usually less intense, pollination period.
Winter in Santa Clarita, spanning December through February, is marked by the lowest pollen counts of the year. Most plants are dormant during this time, reducing the pollen in the air to minimal levels. Nonetheless, in response to warmer spells or in particularly mild winters, certain tree species might release pollen, causing isolated spikes in the pollen count.
Understanding these seasonal patterns is crucial for anticipating and managing allergy symptoms. Residents and visitors with sensitivities are encouraged to keep abreast of local horticultural and meteorological reports, which can provide more precise and timely data on pollen levels, enabling better management of exposure and symptoms.
Does the weather affect the pollen count in Santa Clarita, California?
The influence of weather on pollen counts in Santa Clarita is substantial, with various meteorological conditions exerting different effects on the presence and movement of pollen particles in the atmosphere.
Dry and windy conditions, which are not uncommon in this region, tend to increase the pollen count. The wind lifts pollen from the flora and disperses it over wide areas. On days with strong winds, pollen grains can travel long distances, and when the air is dry, these particles remain airborne longer, potentially affecting a larger population.
Rain, on the other hand, has a dual effect on pollen levels. Initially, a rainfall event can lead to a notable decline in airborne pollen as the droplets cause the grains to settle to the ground. This can provide temporary relief to allergy sufferers. However, this effect is often short-lived. Prolonged or consistent rain can foster robust plant growth and, subsequently, result in an increase in pollen production once the weather clears. This means that after a period of rain, there may be a surge in pollen count as plants resume their pollination.
Temperature also has a direct correlation with pollen production and distribution. Warmer temperatures tend to encourage plant growth, leading to higher pollen counts. This is particularly noticeable in early spring when warmer days signal the start of the growing season and plants begin their reproductive cycles. Conversely, cooler temperatures slow down plant growth and can lead to a decrease in pollen release.
Santa Clarita's unique climate, characterized by its semi-arid conditions, plays a significant role in the year-round pollen levels. Weather patterns such as Santa Ana winds, which are warm, dry winds that typically arise in the autumn and winter, can exacerbate pollen distribution, leading to higher pollen counts even when plants are not actively growing.
Weather conditions are a critical factor in determining daily and seasonal pollen counts in Santa Clarita. These counts can fluctuate widely based on the interplay of wind, rain, and temperature changes, all of which contribute to the complex nature of pollen distribution in the area. For those affected by pollen, understanding these weather-related patterns is essential for managing exposure and mitigating allergy symptoms.
How does the pollen count in Santa Clarita, California affect people with allergies?
The effect of pollen count on people with allergies in Santa Clarita is a significant health concern. Pollen, being one of the most common allergens, can provoke the immune system of sensitized individuals to react as if it were a harmful substance. This reaction results in the release of chemicals like histamine into the body, leading to an array of allergy symptoms.
When the pollen count is high, individuals with sensitivities may experience an increase in symptoms such as sneezing, nasal congestion, and a runny or itchy nose. These are typical hay fever responses. The eyes can also be affected, leading to redness, watering, and an itching sensation, often referred to as allergic conjunctivitis.
In addition to these discomforts, the respiratory system can be severely affected. Individuals may suffer from an irritating cough, throat irritation, or even difficulty breathing, particularly if they have a pre-existing respiratory condition like asthma. High pollen counts can lead to an asthma exacerbation, characterized by wheezing, shortness of breath, chest tightness, and overall difficulty in breathing.
Furthermore, pollen allergies can also impact the quality of life. They can disrupt sleep due to nocturnal symptoms, lead to fatigue or lethargy, and interfere with daily activities. For some, the cognitive impact known as "brain fog" can lead to difficulties with concentration and memory.
Given these varied impacts, it is crucial for individuals with pollen allergies in Santa Clarita to monitor pollen forecasts regularly. Such vigilance allows for pre-emptive measures, such as taking antihistamines before symptoms start, planning outdoor activities when pollen counts are lower, and implementing strategies to reduce pollen exposure, such as keeping windows closed during high pollen periods and using air purifiers indoors.
Long-term management may include consulting with healthcare providers to devise a comprehensive allergy management plan. This could encompass medications, immunotherapy, or lifestyle adjustments to minimize exposure and alleviate symptoms. Staying ahead of the pollen count can empower those with allergies to maintain control over their symptoms and improve their overall well-being.
Does the pollen count in Santa Clarita, California impact the overall air quality index?
The Air Quality Index (AQI) is a standardized indicator used to report daily air quality. It focuses on health effects one might experience within a few hours or days after breathing polluted air. The AQI in Santa Clarita measures the concentration of five major air pollutants: ground-level ozone, particulate matter, carbon monoxide, sulphur dioxide, and nitrogen dioxide.
Pollen, while a significant environmental presence, is not one of these measured pollutants and thus does not directly alter the AQI readings. Pollen is a biological particle, not a chemical pollutant, and its levels are monitored separately from the AQI.
However, for individuals with pollen allergies, high levels of pollen can have a similar impact on their comfort and health as would a poor AQI. For these individuals, a high pollen count can significantly decrease the perceived quality of the air as it may trigger symptoms such as itchy eyes, nasal congestion, and respiratory difficulties. In essence, even if the AQI indicates that the air quality is in the 'good' or 'moderate' range, the presence of high pollen levels can still lead to adverse health effects for a subset of the population.
Consequently, it is important for residents, especially those with allergies or respiratory conditions, to track both the AQI and pollen counts. While the AQI provides a broad understanding of pollution levels, pollen counts offer specific information about the potential for allergenic discomfort. This dual approach ensures a more comprehensive view of air healthiness and allows individuals to take appropriate measures to protect themselves, such as staying indoors on high pollen days or using air filtration systems to reduce indoor pollen levels.
Moreover, understanding the interaction between pollen and pollutants can be essential. For instance, certain air pollutants can exacerbate the inflammatory response to pollen in sensitive individuals, leading to more severe allergy symptoms. Therefore, paying attention to both sets of data – AQI and pollen counts – can be integral to managing health and well-being in Santa Clarita's variable climate.
Where is the highest pollen level in California?
- Agoura Hills3
- Albany3
- Alpine3
- Altadena3
- Anaheim3
- Arbuckle3
- Arvin3
- Atascadero3
- Atherton3
- Avenal3
- Avocado Heights3
- Bakersfield3
- Beale Air Force Base3
- Bear Valley Springs3
- Bell3
- Bell Gardens3
- Benbow3
- Bend3
- Berkeley3
- Biggs3
- Bishop3
- Bloomington3
- Bonadelle Ranchos3
- Bonita3
- Boonville3
- Bostonia3
- Bradbury3
- Brea3
- Brooktrails3
- Buena Park3
- Burbank, Los Angeles County3
- Butte Meadows3
- Buttonwillow3
- Cabazon3
- Calabasas3
- Camarillo3
- Cambria3
- Canby3
- Cantua Creek3
- Carlsbad3
- Carpinteria3
- Carson3
- Casa Conejo3
- Casa de Oro-Mount Helix3
- Chico3
- Chino3
- Chino Hills3
- Claremont3
- Clearlake3
- Clearlake Oaks3
- Clearlake Riviera3
- Clovis3
- Coachella3
- Coalinga3
- Cobb3
- Colton3
- Colusa County3
- Commerce3
- Comptche3
- Compton3
- Corcoran3
- Corning3
- Corona3
- Coronita3
- Costa Mesa3
- Coto de Caza3
- Crest3
- Crestline3
- Creston3
- Cudahy3
- Cutler3
- Cuyama3
- Cypress3
- Dana Point3
- Del Aire3
- Del Mar3
- Desert Center3
- Desert View Highlands3
- Diamond Bar3
- Dixon Lane-MeadowCreek3
- Duarte3
- Dunnigan3
- Durham3
- East Los Angeles3
- East Oakdale3
- East Porterville3
- East Rancho Dominguez3
- East Richmond Heights3
- East Whittier3
- Eastvale3
- El Cajon3
- El Cerrito, Contra Costa County3
- El Segundo3
- Emeryville3
- Encinitas3
- Escalon3
- Esparto3
- Eucalyptus Hills3
- Exeter3
- Farmersville3
- Farmington3
- Ferndale3
- Fillmore3
- Florence-Graham3
- Fontana3
- Ford City3
- Fortuna3
- Fresno3
- Fullerton3
- Garberville3
- Garden Grove3
- Garnet3
- Gerber3
- Glendale3
- Glendora3
- Glenn3
- Gold River3
- Grand Terrace3
- Granite Hills3
- Greenacres3
- Grimes3
- Guinda3
- Hacienda Heights3
- Harbison Canyon3
- Hasley Canyon3
- Hermosa Beach3
- Hesperia3
- Hidden Hills3
- Hidden Meadows3
- Hidden Valley Lake3
- Highgrove3
- Holtville3
- Home Garden3
- Hopland3
- Hornbrook3
- Hornitos3
- Huntington Park3
- Huron3
- Hydesville3
- Idlewild3
- Indio3
- Inyo County3
- Jamul3
- Keeler3
- Kelseyville3
- Kensington3
- King City3
- La Cañada Flintridge3
- La Crescenta-Montrose3
- La Cresta3
- La Habra3
- La Habra Heights3
- La Mesa3
- La Mirada3
- La Palma3
- La Presa3
- La Puente3
- La Verne3
- Ladera Ranch3
- Laguna Beach3
- Laguna Niguel3
- Lake Forest3
- Lake Sherwood3
- Lakeport3
- Lakeside, San Diego County3
- Lamont3
- Las Flores, Orange County3
- Lawndale3
- Lemon Cove3
- Lemon Grove3
- Lennox3
- Linda3
- Lindsay3
- Live Oak, Sutter County3
- Long Beach3
- Los Angeles County3
- Los Molinos3
- Lucerne3
- Lynwood3
- Madison3
- Malibu3
- Manhattan Beach3
- Maricopa3
- Marina del Rey3
- Marysville3
- Matheny3
- Maxwell3
- Maywood3
- McFarland3
- Mecca3
- Mendocino County3
- Merced County3
- Mesa3
- Middletown3
- Mira Monte3
- Modjeska3
- Mojave3
- Monrovia3
- Montclair3
- Montebello3
- Montecito3
- Monterey County3
- Monterey Park3
- Monument Hills3
- Moorpark3
- Mountain House3
- Mountain View Acres3
- Needles3
- New Cuyama3
- Newport Beach3
- Nice3
- Norco3
- Nord3
- North Fair Oaks3
- North Lakeport3
- North Tustin3
- Oak Park3
- Oak View3
- Oakdale3
- Oildale3
- Olivehurst3
- Ontario3
- Orange Cove3
- Orinda3
- Orland3
- Orosi3
- Oroville3
- Palmdale3
- Palos Verdes Estates3
- Paramount3
- Parksdale3
- Parkwood3
- Pasadena3
- Paso Robles3
- Patterson Tract3
- Petaluma3
- Philo3
- Pico Rivera3
- Pine Mountain Club3
- Placentia3
- Pomona3
- Porterville3
- Potter Valley3
- Poway3
- Rainbow3
- Rancho Cordova3
- Rancho Cucamonga3
- Rancho Palos Verdes3
- Rancho San Diego3
- Rancho Santa Margarita3
- Rancho Tehama Reserve3
- Red Bluff3
- Redondo Beach3
- Redway3
- Redwood City3
- Redwood Valley3
- Rialto3
- Richgrove3
- Rio Dell3
- Robbins3
- Rosedale3
- Round Valley3
- Rowland Heights3
- San Clemente3
- San Dimas3
- San Fernando3
- San Juan Capistrano3
- San Miguel, San Luis Obispo County3
- Santa Ana3
- Santa Clara County3
- Santa Margarita3
- Santa Monica3
- Santa Rosa Valley3
- Santa Susana3
- Santee3
- Selma3
- Shandon3
- Sierra Madre3
- Signal Hill3
- Simi Valley3
- Smartsville3
- Soda Bay3
- Solana Beach3
- South El Monte3
- South Gate3
- South Pasadena3
- South San Gabriel3
- South San Jose Hills3
- South Taft3
- South Whittier3
- Spring Valley Lake3
- Spring Valley, San Diego County3
- Springville3
- Stallion Springs3
- Stanton3
- Stonyford3
- Strathmore3
- Summerland3
- Sun Village3
- Taft3
- Taft Heights3
- Talmage3
- Tancred3
- Tarpey Village3
- Tehama County3
- Temecula3
- Templeton3
- Terra Bella3
- Thermal3
- Thermalito3
- Thousand Oaks3
- Three Rivers3
- Topanga3
- Toro Canyon3
- Torrance3
- Trabuco Canyon3
- Tracy3
- Tulare County3
- Ukiah3
- Upland3
- Val Verde3
- Valinda3
- Valley Center3
- Vernon3
- Villa Park3
- Vina3
- Visalia3
- Vista3
- Vista Santa Rosa3
- Walnut3
- Walnut Park3
- Weedpatch3
- Weldon3
- West Bishop3
- West Sacramento3
- West Whittier-Los Nietos3
- Westlake Village3
- Westminster3
- Whittier3
- Wilkerson3
- Williams3
- Willits3
- Willowbrook3
- Willows3
- Winter Gardens3
- Woodlake3
- Woodland3
- Yolo County3
- Yorba Linda3
- Yuba City3
- Adelanto2
- Alhambra2
- Alondra Park2
- Alta Sierra, Kern County2
- Alturas2
- Antelope2
- Apple Valley2
- Arcadia2
- Armona2
- Aromas2
- Artesia2
- Auberry2
- August2
- Azusa2
- Baker2
- Baldwin Park2
- Banning2
- Bellflower2
- Bermuda Dunes2
- Beverly Hills2
- Big Pine2
- Bonsall2
- Borrego Springs2
- Calexico2
- California Pines2
- Calipatria2
- Camp Pendleton South2
- Canyon Lake2
- Cartago2
- Caruthers2
- Castaic2
- Castroville2
- Cathedral City2
- Cayucos2
- Cedar Ridge2
- Cerritos2
- Charter Oak2
- Chester2
- Chinese Camp2
- Chula Vista2
- Citrus2
- Coronado2
- Country Club2
- Covina2
- Culver City2
- Del Dios2
- Denair2
- Desert Edge2
- Desert Hot Springs2
- Desert Shores2
- Dorris2
- Downey2
- Dunsmuir2
- East Pasadena2
- East San Gabriel2
- Easton2
- El Monte, Contra Costa County2
- Elverta2
- Escondido2
- Fairbanks Ranch2
- Fairview2
- French Camp2
- Fresno County2
- Gardena2
- Green Valley, Los Angeles County2
- Greenville2
- Hamilton Branch2
- Hanford2
- Hawaiian Gardens2
- Hawthorne2
- Heber2
- Highland2
- Home Gardens2
- Homestead Valley2
- Hoopa2
- Imperial Beach2
- Independence2
- Indian Wells2
- Inglewood2
- Irvine2
- Irwindale2
- Joshua Tree2
- Jurupa Valley2
- Kennedy2
- Kerman2
- Kettleman City2
- Kings2
- Klamath County2
- La Quinta2
- Ladera Heights2
- Lake Almanor Country Club2
- Lake Almanor West2
- Lake Elsinore2
- Lakeland Village2
- Lakewood2
- Las Lomas2
- Lathrop2
- Laton2
- Leona Valley2
- Lincoln Village2
- Littlerock2
- Lockwood, Monterey County2
- Loma Linda2
- Lomita2
- Lone Pine2
- Los Alamitos2
- Los Alamos2
- Los Angeles2
- Lucerne Valley2
- Macdoel2
- Madera Acres2
- Manteca2
- March ARB2
- Marina2
- Mayfair2
- Mayflower Village2
- Meadowbrook2
- Meiners Oaks2
- Mentone2
- Mi-Wuk Village2
- Mineral2
- Moreno Valley2
- Morongo Valley2
- Morro Bay2
- Muscoy2
- National City2
- Newell2
- Niland2
- North El Monte2
- North Highlands2
- North Shore2
- Norwalk2
- Oak Hills2
- Oasis2
- Oceanside2
- Ocotillo2
- Ojai2
- Olancha2
- Old Fig Garden2
- Orange County2
- Pajaro2
- Palm Desert2
- Palm Springs2
- Phelan2
- Piru2
- Poplar-Cotton Center2
- Rancho Mirage2
- Rancho Santa Fe2
- Randsburg2
- Redlands2
- Ridgecrest2
- Rio Linda2
- Rio Vista2
- Riverside2
- Riverside County2
- Rolling Hills Estates2
- Rolling Hills, Los Angeles County2
- Rosamond2
- Rosemead2
- Rossmoor2
- Salton City2
- San Antonio Heights2
- San Diego2
- San Gabriel2
- San Joaquin County2
- San Luis Obispo2
- San Marino2
- San Pasqual2
- Santa Clarita2
- Santa Fe Springs2
- Santa Paula2
- Saticoy2
- Seal Beach2
- Searles Valley2
- Seeley2
- Shafter2
- Sky Valley2
- Somis2
- Stevenson Ranch2
- Stockton2
- Sunnyside2
- Taft Mosswood2
- Temple City2
- Tennant2
- Thousand Palms2
- Trona2
- Tulelake2
- Turlock2
- Tustin2
- Twentynine Palms2
- Ventura2
- View Park-Windsor Hills2
- Vincent2
- Warm Springs2
- Weitchpec2
- West Athens2
- West Carson2
- West Covina2
- West Hollywood2
- West Puente Valley2
- West Rancho Dominguez2
- Westmont2
- Westwood2
- Willow Creek2
- Wofford Heights2
- Woodcrest2
- Woodville2
- Yermo2
- Yucca Valley2
- Acalanes Ridge1
- Acampo1
- Acton1
- Adin1
- Agua Dulce1
- Aguanga1
- Ahwahnee1
- Alameda County1
- Alamo1
- Albion1
- Alhambra Valley1
- Aliso Viejo1
- Allendale1
- Allensworth1
- Alpaugh1
- Alta1
- Alum Rock1
- Amador1
- Amador City1
- American Canyon1
- Amesti1
- Anderson1
- Angels1
- Angwin1
- Antioch1
- Anza1
- Aptos1
- Aptos Hills-Larkin Valley1
- Arcata1
- Arden-Arcade1
- Arnold1
- Arroyo Grande1
- Ashland1
- Atwater1
- Auburn1
- Auburn Lake Trails1
- Avalon1
- Avery1
- Avila Beach1
- Bakersfield Country Club1
- Barstow1
- Bass Lake1
- Bay Point1
- Bayview, Humboldt County1
- Baywood Park1
- Bear Valley, Mariposa County1
- Beaumont1
- Beckwourth1
- Bella Vista1
- Belmont1
- Belvedere1
- Ben Lomond1
- Benicia1
- Benton1
- Berry Creek1
- Bertsch-Oceanview1
- Bethel Island1
- Big Bear City1
- Big Bear Lake1
- Big River1
- Biola1
- Black Point-Green Point1
- Blackhawk1
- Blacklake1
- Blue Lake1
- Blythe1
- Bodega1
- Bodega Bay1
- Bodfish1
- Bolinas1
- Bonny Doon1
- Bootjack1
- Boron1
- Boronda1
- Boulder Creek1
- Boyes Hot Springs1
- Brawley1
- Brentwood1
- Bret Harte1
- Bridgeport1
- Brisbane1
- Broadmoor1
- Brookdale1
- Brooks1
- Buckhorn1
- Bucks Lake1
- Buellton1
- Burlingame1
- Burney1
- Butte1
- Butte Creek Canyon1
- Butte Valley1
- Byron1
- Bystrom1
- Calaveras1
- California City1
- Calimesa1
- Calistoga1
- Callender1
- Calpine1
- Camanche Village1
- Cambrian Park1
- Cameron Park1
- Camino1
- Camino Tassajara1
- Camp Nelson1
- Camp Pendleton Mainside1
- Campbell1
- Campo1
- Camptonville1
- Canyondam1
- Capitola1
- Carmel-by-the-Sea1
- Carmel Valley Village1
- Carmet1
- Carmichael1
- Carnelian Bay1
- Caspar1
- Castle Hill1
- Castro Valley1
- Catheys Valley1
- Cazadero1
- Cedar Flat1
- Centerville, Fresno County1
- Ceres1
- Chalfant1
- Challenge-Brownsville1
- Channel Islands Beach1
- Cherry Valley1
- Cherryland1
- China Lake Acres1
- Chowchilla1
- Chualar1
- Citrus Heights1
- Clay1
- Clayton1
- Clio1
- Clipper Mills1
- Cloverdale1
- Clyde1
- Coarsegold1
- Coffee Creek1
- Cold Springs, Tuolumne County1
- Coleville1
- Colfax1
- Collierville1
- Colma1
- Coloma1
- Columbia1
- Concord1
- Concow1
- Contra Costa Centre1
- Contra Costa County1
- Copperopolis1
- Corralitos1
- Corte Madera1
- Cotati1
- Cottonwood, Shasta County1
- Courtland1
- Covelo1
- Crescent City1
- Crockett1
- Cromberg1
- Crowley Lake1
- Cupertino1
- Cutten1
- Daly City1
- Danville1
- Davenport1
- Davis1
- Day Valley1
- Deer Park1
- Del Monte Forest1
- Del Rey1
- Del Rey Oaks1
- Del Rio1
- Delano1
- Delhi1
- Descanso1
- Diablo1
- Diamond Springs1
- Dillon Beach1
- Dinuba1
- Discovery Bay1
- Dixon1
- Dobbins1
- Dogtown1
- Dollar Point1
- Dorrington1
- Dos Palos1
- Downieville1
- Dublin1
- Dutch Flat1
- Earlimart1
- East Foothills1
- East Hemet1
- East Palo Alto1
- East Quincy1
- East Shore1
- East Sonora1
- Edwards Air Force Base1
- El Centro1
- El Dorado County1
- El Dorado Hills1
- El Granada1
- El Portal1
- El Rio1
- El Sobrante, Contra Costa County1
- El Verano1
- Eldridge1
- Elk Creek1
- Elk Grove1
- Elkhorn1
- Emerald Lake Hills1
- Empire1
- Etna1
- Fair Oaks1
- Fairfax, Marin County1
- Fairfield1
- Fairmead1
- Fallbrook1
- Felton1
- Fetters Hot Springs-Agua Caliente1
- Fiddletown1
- Fieldbrook1
- Fields Landing1
- Firebaugh1
- Fish Camp1
- Florin1
- Folsom1
- Foothill Farms1
- Forest Meadows1
- Forest Ranch1
- Foresta1
- Foresthill1
- Forestville1
- Fort Bragg1
- Fort Irwin1
- Fort Jones1
- Foster City1
- Fountain Valley1
- Fowler1
- Franklin, Sacramento County1
- Frazier Park1
- Freedom1
- Fremont1
- French Gulch1
- French Valley1
- Friant1
- Fruitdale1
- Fruitridge Pocket1
- Fulton1
- Galt1
- Garden Acres1
- Gasquet1
- Georgetown1
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