Pollen count and allergy info for Modesto
Modesto pollen and allergy report • 00:00, Oct 2
Index
Moderate
Tree
None
Grass
None
Weed
Moderate
Daily allergy forecast
Modesto pollen count forecast
Today 14 km/h37°20° 39% | Saturday 13 km/h40°21° 30% | Sunday 16 km/h39°21° 17% |
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How does the pollen count in Modesto, California compare between different times of the day?
Understanding the dynamics of pollen dispersion in Modesto, California, requires a grasp of several meteorological and botanical factors that influence its concentration in the air. Pollen levels are not static and exhibit significant variation over the course of a day due to a complex interplay of temperature, humidity, and wind activity, among other factors.
In the early hours after dawn, pollen counts are typically at their lowest. The overnight coolness results in dew formation, which contributes to the settling of pollen particles close to the ground. The higher moisture content in the air during these early hours aids in weighing down the pollen, reducing its presence in the air column.
As the sun rises and the day progresses, the temperature begins to climb, leading to the evaporation of the morning dew. Consequently, the air holds less moisture, creating conditions that allow pollen to become airborne more easily. These conditions facilitate a gradual increase in pollen concentration.
The pollen count tends to reach its peak between late morning and early afternoon. During these hours, the combination of dry air and rising temperatures creates an optimal condition for pollen grains to be released from plants and become suspended in the air. The increased warmth also encourages the opening of flowers, further contributing to the release of pollen.
Additionally, wind plays a pivotal role in the distribution and concentration of pollen. On days with strong winds, pollen can be carried over considerable distances, increasing the count across a broader area. Conversely, still air can lead to higher localised concentrations of pollen.
Rain, on the other hand, can lead to a marked decrease in pollen levels. Precipitation effectively washes pollen out of the air, leading to a temporary respite for allergy sufferers. However, the aftermath of a rain shower can lead to a surge in pollen production as plants respond to the increased availability of water.
It is worth noting that various types of pollen have different peak times during the day and respond differently to weather conditions. For example, grass pollen, which is a common allergen, typically has higher levels in the afternoon and early evening.
Individuals with sensitivities to pollen are advised to stay informed through real-time pollen reports. These reports can provide a more accurate and immediate understanding of pollen levels, which is essential for planning daily activities and managing allergy symptoms.
Meteorological services and various online platforms offer updates on pollen counts, which can assist individuals in making informed decisions about spending time outdoors. These updates often include specific details on the types of pollen currently in the air, which can be particularly useful since some people may be allergic to certain types of pollen and not others.
The pollen count in Modesto is dynamic and influenced by a range of environmental factors. Understanding these patterns can be crucial for individuals who are affected by airborne allergens.
What are the seasonal differences in the pollen count in Modesto, California?
Understanding the seasonal variation of pollen counts in Modesto, California, requires a comprehensive look at the local flora and how it responds to the region's climatic conditions throughout the year. The cycle of pollen release is primarily dictated by the reproductive patterns of plants and is influenced by environmental factors such as temperature, rainfall, and wind patterns.
In the spring, which typically starts in March and extends through May, Modesto experiences a rise in pollen counts as a variety of trees enter their pollination cycle. Key contributors during this period include oak, ash, and elm. These species, adapted to the Mediterranean climate of the region, begin to disperse large volumes of pollen as they flower, which is transported by the wind across various distances.
As spring transitions to early summer, around June, there is a shift in the predominant pollen types. Grasses begin to pollinate during this time, with species like Bermuda grass and ryegrass becoming significant sources of airborne pollen. The dry and warm weather of early summer provides optimal conditions for grasses to release pollen, which can be especially troublesome for individuals with sensitivities.
The latter part of summer, which includes July and August, continues to see grass pollen in the air. Additionally, this period marks the emergence of weed pollen. Weeds such as sagebrush and ragweed become more active in their pollination, releasing pollen that can be highly allergenic. The continuation of warm, dry weather facilitates the spread of these pollen types, which can lead to increased discomfort for people with allergies.
Autumn, spanning from September to November, sees a shift towards the presence of weed pollen and the introduction of mould spores. The decay of vegetation, which is a natural part of the seasonal cycle, leads to the proliferation of moulds. These spores can become airborne and add to the allergen load in the environment. The cooler temperatures and increased rainfall associated with autumn can also contribute to mould growth and spore release.
During winter, from December to February, Modesto generally experiences a lower pollen count. Most plants are dormant during this period, reducing the amount of pollen in the air. However, the count is not non-existent. Weather patterns, such as storms, can stir up pollen and mould spores that have settled on the ground, causing variations in the pollen count. Furthermore, certain tree species, such as junipers and cedars, may release pollen during warmer spells in the winter months.
Throughout the year, factors such as rainfall, temperature fluctuations, and human activities like gardening and landscaping can affect daily pollen counts. Rain can help to clear pollen from the air, leading to lower counts following precipitation. Conversely, dry, windy conditions can increase airborne pollen levels by dispersing it over wider areas.
The patterns of pollen release and the associated counts in Modesto are thus a reflection of the interplay between the biological cycles of plants and the climatic conditions of the region. These patterns are crucial for individuals with allergies to understand and manage their symptoms effectively. It is also important for local healthcare providers to be aware of these variations to better advise their patients on how to mitigate allergy-related issues throughout the year.
Are there any efforts in Modesto, California to reduce the pollen count and improve air quality?
In Modesto, California, there is recognition of the challenges presented by high pollen counts and the associated impact on air quality. The local authorities, alongside environmental and health organisations, have implemented a series of measures aimed at addressing this issue.
Urban landscaping is one of the key areas where Modesto has made changes. The city has established guidelines that promote the use of low-pollen-producing plants in public spaces. This strategy is particularly relevant as certain trees and plants are known to produce a significant amount of pollen which can contribute to allergy symptoms. By selecting species that are less likely to generate pollen, the city can help to mitigate this problem.
In addition to landscaping choices, there is a push to encourage residents to consider the types of plants they cultivate. Programs are in place to educate the community about the benefits of selecting less allergenic trees and plants. Some initiatives may offer incentives for the planting of these alternatives, fostering a more hypoallergenic environment.
Policies focused on air quality also play a critical role in Modesto's approach. These policies target a reduction in pollutants, such as vehicle emissions and industrial by-products, which can aggravate pollen-related issues. Measures include enforcing stricter emissions standards, promoting public transport, and supporting the transition to electric vehicles.
Public advisories are another component of the effort. These advisories are particularly prevalent during peak pollen times. They serve to inform the public about the pollen count, providing advice on how to reduce exposure. Suggestions often include staying indoors during high pollen periods, keeping windows closed, and using air purifiers.
Education campaigns complement these advisories by increasing public understanding of how pollen affects health. They provide guidance on maintaining clean indoor environments to alleviate symptoms. This can involve regular cleaning to remove pollen from surfaces and using high-efficiency particulate air (HEPA) filters to capture airborne particles.
In schools and workplaces, there is an emphasis on awareness, with information provided about how to manage environments to help those affected by pollen. This includes regular cleaning protocols and the installation of air filtration systems.
Modesto's multifaceted approach reflects an understanding of the complex nature of pollen production and its interaction with air quality. By addressing the issue from various angles — urban planning, public policy, community education, and individual action — the city is working towards creating a more comfortable and healthier environment for its residents.
Does the pollen count in Modesto, California impact the overall air quality index?
The relationship between pollen counts and the Air Quality Index (AQI) in Modesto, California, is one of indirect influence rather than direct causation. Pollen, a natural substance released by plants for reproduction, is ubiquitous in outdoor environments, especially during certain times of the year. While pollen is a significant factor in the quality of air, particularly for individuals with allergies, it is not a component measured by the AQI. The AQI is a tool used to communicate how polluted the air currently is or how polluted it is forecast to become.
The AQI in the United States is calculated based on the presence of five major air pollutants regulated by the Clean Air Act: ground-level ozone, particulate matter, carbon monoxide, sulphur dioxide, and nitrogen dioxide. These pollutants are known to cause harm to humans and the environment, and their levels are used to determine the safety or risk of outdoor air. Ground-level ozone and airborne particles are the two pollutants that pose the broadest health threats; hence they are the primary focus of the AQI in many areas.
Modesto, situated in California's Central Valley, often experiences high levels of pollen, especially during the spring and summer months when plants are in bloom. The region's climate, agricultural activity, and natural vegetation all contribute to the levels of pollen in the air. For individuals with pollen allergies, the presence of high pollen levels can cause symptoms such as sneezing, coughing, and itchy eyes, which can be mistaken for reactions to poor air quality. These symptoms can significantly affect individuals' comfort and health, much like the effects of the pollutants measured by the AQI.
It is crucial to understand that while pollen has a substantial impact on those with allergies, it does not alter the AQI. Nevertheless, local weather stations and health departments may issue pollen alerts alongside AQI warnings when levels are high. These alerts can inform individuals prone to allergies when they should take precautions to minimise discomfort, such as staying indoors, using air filters, or taking allergy medication.
Moreover, despite not being a factor in AQI calculations, the effects of pollen are serious enough that many consider it an aspect of air quality in a broader sense. Health professionals and those who study the environment often advocate for public awareness of pollen levels in the same manner as pollutant concentrations. This is particularly relevant in places like Modesto, where agriculture and flora contribute to fluctuating pollen counts throughout the year.
While pollen does not contribute to AQI readings, its impact on air quality is non-negligible, especially for those with allergies. Public health advice often includes information on both AQI and pollen counts, offering a more comprehensive understanding of the air's quality. It is this broader definition of air quality that is of practical importance to the public, ensuring they are informed and can take appropriate action to protect their health in areas with high levels of airborne allergens.
Can the pollen count in Modesto, California affect pets or animals?
The impact of pollen counts on pets and animals in areas such as Modesto, California, is a matter of concern for many pet owners. When the pollen count is high, a number of animals, much like humans, can experience allergic reactions. These reactions are due to their immune system responding to pollen as if it were a harmful substance. The symptoms observed in pets can vary but often include responses such as itching, skin irritation, and respiratory issues. For instance, a dog may scratch more frequently, or a cat may show signs of discomfort on its skin. Respiratory reactions might also be observed, with pets potentially sneezing or exhibiting nasal discharge.
Animals that have outdoor access are at a higher risk of coming into contact with pollen, which they can then carry into the home on their fur and paws. This transfer of pollen can worsen the indoor air quality, thus posing a risk not only to other animals in the household but also to humans, particularly those with pollen allergies. The pollen grains carried indoors can settle on various surfaces, contributing to a cycle of allergy triggers.
Addressing this issue involves a multi-faceted approach. Pet owners are advised to increase the frequency of grooming during periods when the pollen count is high. This grooming can include brushing and bathing, which may help to remove pollen from the animal's fur. However, it is important to use appropriate pet-friendly grooming products to avoid further skin irritation.
In addition to grooming, pet owners can take steps to improve the quality of indoor air. This can involve the use of air filters, particularly those with HEPA filters which are known to be effective in capturing pollen particles. Regular replacement or cleaning of these filters is essential to maintain their effectiveness.
Cleaning routines within the home can also play a significant role in managing pollen levels. Regular vacuuming with a vacuum cleaner equipped with a HEPA filter can reduce the presence of pollen in carpets and upholstery. Washing bedding and other fabrics that pets come into contact with can also help to reduce pollen accumulation.
For pet owners, understanding the local pollen forecast can be beneficial. On days when the pollen count is predicted to be particularly high, it may be advisable to limit pets' outdoor activities. Keeping windows and doors closed can also prevent pollen from entering the home.
These measures, when combined, can assist in managing the impact of pollen on pets and the wider household. It is worth noting that if a pet displays severe symptoms, consultation with a veterinarian is important to ensure proper diagnosis and treatment. This may include the administration of medications or other interventions to alleviate the discomfort caused by allergies.
Where is the highest pollen level in California?
- Alamo3
- Ashland3
- Burlingame3
- Burney3
- Cambria3
- Carmet3
- Castro Valley3
- Castroville3
- Cayucos3
- Cazadero3
- Cherryland3
- Contra Costa County3
- Dublin3
- Eastern Goleta Valley3
- Etna3
- Goleta3
- Greenview3
- Grenada3
- Guerneville3
- Hamilton Branch3
- Hayward3
- Hillsborough3
- Isla Vista3
- Jenner3
- Klamath County3
- La Honda3
- Lagunitas-Forest Knolls3
- Lake Almanor Country Club3
- Lake Arrowhead3
- Loma Mar3
- Los Osos3
- Millbrae3
- Monte Rio3
- Morro Bay3
- Moss Landing3
- Newport Beach3
- Piñon Hills3
- Pleasanton3
- Running Springs3
- San Bruno3
- San Leandro3
- San Lorenzo3
- San Miguel, Contra Costa County3
- Santa Barbara3
- Shell Ridge3
- Siskiyou County3
- Union City3
- University of California-Santa Barbara3
- Walnut Creek3
- Westwood3
- Wrightwood3
- Acalanes Ridge2
- Acampo2
- Adin2
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- Albany2
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- Walker2
- Walnut Grove2
- Wasco2
- Waterford2
- Watsonville2
- Waukena2
- Weaverville2
- Weitchpec2
- Weldon2
- West Bishop2
- West Menlo Park2
- West Modesto2
- West Park2
- West Point2
- Westhaven-Moonstone2
- Westley2
- Wheatland2
- Whitehawk2
- Whitmore2
- Wildomar2
- Wilkerson2
- Williams2
- Willits2
- Willow Creek2
- Willows2
- Wilton2
- Winchester2
- Windsor2
- Winton2
- Woodacre2
- Woodbridge2
- Woodland2
- Woodlands2
- Woodside2
- Woodville2
- Yolo2
- Yolo County2
- Yosemite Valley2
- Yountville2
- Yreka2
- Yuba City2
- Zayante2
- Acton1
- Adelanto1
- Agoura Hills1
- Agua Dulce1
- Ahwahnee1
- Aliso Viejo1
- Alondra Park1
- Alpine1
- Alpine County1
- Alta Sierra, Kern County1
- Alta Sierra, Nevada County1
- Alum Rock1
- Amador1
- Amador City1
- Anaheim1
- Angels1
- Antioch1
- Arden-Arcade1
- Artesia1
- Arvin1
- Auberry1
- Auburn1
- Auburn Lake Trails1
- August1
- Bass Lake1
- Bear Valley, Alpine County1
- Bear Valley, Mariposa County1
- Bear Valley Springs1
- Beaumont1
- Bellflower1
- Berry Creek1
- Big Pine1
- Bootjack1
- Brea1
- Bridgeport1
- Buena Park1
- Butte1
- Butte Creek Canyon1
- Butte Valley1
- Calaveras1
- Calimesa1
- Calwa1
- Camarillo1
- Cambrian Park1
- Cameron Park1
- Campbell1
- Campo1
- Cantua Creek1
- Canyon Lake1
- Carnelian Bay1
- Carson1
- Cartago1
- Cedar Flat1
- Cerritos1
- Challenge-Brownsville1
- Channel Islands Beach1
- Cherry Valley1
- Chinese Camp1
- Chino Hills1
- Citrus Heights1
- Clipper Mills1
- Coarsegold1
- Cobb1
- Cold Springs, El Dorado County1
- Colfax1
- Coloma1
- Columbia1
- Compton1
- Concow1
- Copperopolis1
- Costa Mesa1
- Coto de Caza1
- Country Club1
- Creston1
- Crowley Lake1
- Culver City1
- Cupertino1
- Cypress1
- Del Dios1
- Descanso1
- Diamond Springs1
- Dobbins1
- Dollar Point1
- Downey1
- Downieville1
- East Foothills1
- East Porterville1
- East Rancho Dominguez1
- East Sonora1
- East Whittier1
- Easton1
- El Dorado County1
- El Dorado Hills1
- El Portal1
- El Rio1
- Elk Creek1
- Escondido1
- Fiddletown1
- Fillmore1
- Foothill Farms1
- Foresthill1
- Fountain Valley1
- French Camp1
- French Valley1
- Fresno County1
- Fruitdale1
- Fullerton1
- Garden Grove1
- Gardena1
- Georgetown1
- Gold River1
- Granite Bay1
- Greenacres1
- Greenville1
- Harbison Canyon1
- Hartland1
- Hawaiian Gardens1
- Hawthorne1
- Hidden Valley Lake1
- Hornitos1
- Huntington Beach1
- Idyllwild-Pine Cove1
- Independence1
- Inyo County1
- Irvine1
- Jackson1
- Jamestown1
- Jamul1
- Julian1
- June Lake1
- Jurupa Valley1
- Keeler1
- Kelly Ridge1
- Kelseyville1
- Kennedy1
- Kern1
- Kings Beach1
- Kirkwood1
- La Habra1
- La Mirada1
- La Palma1
- La Riviera1
- Ladera Heights1
- Laguna Hills1
- Laguna Woods1
- Lake County1
- Lake Don Pedro1
- Lake Elsinore1
- Lake Forest1
- Lake Los Angeles1
- Lake of the Pines1
- Lake Wildwood1
- Lakehead1
- Lakeland Village1
- Lakeview1
- Lakewood1
- Las Flores, Orange County1
- Lee Vining1
- Lemon Cove1
- Lincoln Village1
- Littlerock1
- Loma Rica1
- Lomita1
- Lone Pine1
- Long Beach1
- Loomis1
- Los Alamitos1
- Los Angeles1
- Los Olivos1
- Lower Lake1
- Lucerne1
- Lynwood1
- Madera County1
- Magalia1
- Mammoth Lakes1
- Manton1
- Mariposa1
- Mariposa County1
- Martell1
- Mayfair1
- Meadow Vista1
- Meadowbrook1
- Meyers1
- Middletown1
- Midpines1
- Midway City1
- Mission Canyon1
- Mission Viejo1
- Modjeska1
- Mojave1
- Mokelumne Hill1
- Mono1
- Mono Vista1
- Montgomery Creek1
- Moorpark1
- Mountain Ranch1
- Murphys1
- Murrieta1
- National City1
- Newcastle1
- North Auburn1
- North Fork1
- North San Juan1
- North Tustin1
- Norwalk1
- Nuevo1
- Oak Hills1
- Oak Park1
- Oak Run1
- Oakhurst1
- Ojai1
- Olancha1
- Old Fig Garden1
- Orange County1
- Orangevale1
- Oroville1
- Oroville East1
- Oxnard1
- Paradise, Paradise County1
- Paramount1
- Penn Valley1
- Phoenix Lake1
- Pine Grove1
- Pine Mountain Lake1
- Pine Valley1
- Placentia1
- Placerville1
- Plymouth1
- Pollock Pines1
- Port Hueneme1
- Porterville1
- Potrero1
- Rail Road Flat1
- Ramona1
- Rancho Calaveras1
- Rancho Cordova1
- Rancho Murieta1
- Rancho Santa Margarita1
- Randsburg1
- River Pines1
- Riverside1
- Rocklin1
- Rolling Hills Estates1
- Rolling Hills, Los Angeles County1
- Rosamond1
- Roseville1
- Rossmoor1
- Sacramento1
- San Andreas1
- San Buenaventura (Ventura)1
- San Diego Country Estates1
- San Diego County1
- San Jacinto1
- San Joaquin County1
- Santa Ana1
- Santa Fe Springs1
- Santa Paula1
- Santa Susana1
- Saratoga1
- Saticoy1
- Seal Beach1
- Shasta County1
- Sheep Ranch1
- Shingle Springs1
- Shingletown1
- Sierra City1
- Signal Hill1
- Silver City1
- Simi Valley1
- Smartsville1
- Soda Bay1
- Soda Springs1
- Sonora1
- Soulsbyville1
- South Gate1
- South Lake Tahoe1
- South Oroville1
- South Whittier1
- Spring Valley, Lake County1
- Squaw Valley1
- Stallion Springs1
- Stanton1
- Stockton1
- Stonyford1
- Sunny Slopes1
- Sunnyside1
- Sunnyside-Tahoe City1
- Sutter Creek1
- Taft Mosswood1
- Tahoe Vista1
- Tahoma1
- Taylorsville1
- Thermalito1
- Trabuco Canyon1
- Tracy1
- Trinidad1
- Truckee1
- Tuolumne City1
- Tustin1
- Twain Harte1
- Twin Lakes, Mono County1
- Upper Lake1
- Vallecito1
- Valley Springs1
- Ventura1
- Victorville1
- Villa Park1
- Virginia Lakes1
- Warm Springs1
- Weedpatch1
- West Athens1
- West Carson1
- West Rancho Dominguez1
- West Sacramento1
- Westlake Village1
- Westminster1
- Westmont1
- Willowbrook1
- Wilsonia1
- Winters1
- Wofford Heights1
- Woodcrest1
- Woodlake1
- Yorba Linda1
- Yosemite Lakes1
- Yuba1
- Yucaipa1
- Yucca Valley1
- Alhambra0
- Alta0
- Altadena0
- Amador Pines0
- Anza0
- Apple Valley0
- Arcadia0
- Avocado Heights0
- Azusa0
- Baker0
- Baldwin Park0
- Banning0
- Barstow0
- Bell0
- Bell Canyon0
- Bell Gardens0
- Bermuda Dunes0
- Beverly Hills0
- Big River0
- Bloomington0
- Blythe0
- Bonita0
- Bonsall0
- Boron0
- Borrego Springs0
- Bostonia0
- Bradbury0
- Brawley0
- Buckhorn0
- Burbank, Los Angeles County0
- Cabazon0
- Calabasas0
- Calexico0
- Calipatria0
- Camp Nelson0
- Camp Pendleton Mainside0
- Camptonville0
- Casa Conejo0
- Casa de Oro-Mount Helix0
- Castaic0
- Cathedral City0
- Catheys Valley0
- Cedar Ridge0
- Charter Oak0
- China Lake Acres0
- Chino0
- Chula Vista0
- Citrus0
- Claremont0
- Clayton0
- Coachella0
- Colton0
- Commerce0
- Corona0
- Coronita0
- Covina0
- Crest0
- Cudahy0
- Cuyama0
- Del Mar0
- Desert Center0
- Desert Edge0
- Desert Hot Springs0
- Desert Palms0
- Desert Shores0
- Desert View Highlands0
- Diamond Bar0
- Duarte0
- Dutch Flat0
- East Hemet0
- East Los Angeles0
- East Pasadena0
- East San Gabriel0
- Eastvale0
- El Cajon0
- El Centro0
- El Monte, Contra Costa County0
- Eucalyptus Hills0
- Fairbanks Ranch0
- Fallbrook0
- Fieldbrook0
- Fish Camp0
- Florence-Graham0
- Fontana0
- Fort Irwin0
- Garnet0
- Glendale0
- Glendora0
- Grand Terrace0
- Granite Hills0
- Green Valley, Los Angeles County0
- Hacienda Heights0
- Hasley Canyon0
- Heber0
- Hemet0
- Hesperia0
- Hidden Hills0
- Hidden Meadows0
- Highgrove0
- Highland0
- Holtville0
- Home Gardens0
- Homestead Valley0
- Huntington Park0
- Idlewild0
- Imperial0
- Imperial Beach0
- Imperial County0
- Indian Wells0
- Indio0
- Inglewood0
- Inyokern0
- Irwindale0
- La Cañada Flintridge0
- La Crescenta-Montrose0
- La Habra Heights0
- La Mesa0
- La Presa0
- La Puente0
- La Quinta0
- La Verne0
- Lake San Marcos0
- Lake Sherwood0
- Lakeside, San Diego County0
- Lemon Grove0
- Lenwood0
- Leona Valley0
- Lockwood, Amador County0
- Loma Linda0
- Los Angeles County0
- Lucerne Valley0
- March ARB0
- Maricopa0
- Mayflower Village0
- Maywood0
- Mecca0
- Meiners Oaks0
- Mentone0
- Mesa Verde0
- Mi-Wuk Village0
- Mira Monte0
- Monrovia0
- Montclair0
- Montebello0
- Monterey Park0
- Moreno Valley0
- Morongo Valley0
- Mountain View Acres0
- Muscoy0
- Needles0
- New Cuyama0
- Niland0
- Norco0
- North El Monte0
- North Shore0
- Oak View0
- Oasis0
- Ocotillo0
- Ontario0
- Orange0
- Palm Desert0
- Palm Springs0
- Palmdale0
- Pasadena0
- Pepperdine University0
- Pico Rivera0
- Pike0
- Piru0
- Pomona0
- Poway0
- Rainbow0
- Rancho Cucamonga0
- Rancho Mirage0
- Rancho San Diego0
- Rancho Santa Fe0
- Rancho Tehama Reserve0
- Redlands0
- Rialto0
- Riverside County0
- Rolling Hills, Madera County0
- Rosemead0
- Rowland Heights0
- Salton City0
- San Antonio Heights0
- San Bernardino0
- San Bernardino County0
- San Diego0
- San Dimas0
- San Fernando0
- San Gabriel0
- San Marcos0
- San Marino0
- San Pasqual0
- Santa Clarita0
- Santa Rosa Valley0
- Santee0
- Seeley0
- Shaver Lake0
- Sierra Madre0
- Sky Valley0
- Solana Beach0
- Somis0
- South El Monte0
- South Pasadena0
- South San Gabriel0
- South San Jose Hills0
- Spring Valley Lake0
- Spring Valley, San Diego County0
- Springville0
- Stevenson Ranch0
- Stirling City0
- Sun Village0
- Taft0
- Temescal Valley0
- Temple City0
- Thermal0
- Thousand Oaks0
- Thousand Palms0
- Three Rivers0
- Topanga0
- Tulare County0
- Twentynine Palms0
- Upland0
- Val Verde0
- Valinda0
- Valle Vista0
- Valley Center0
- Vernon0
- View Park-Windsor Hills0
- Vincent0
- Vista0
- Vista Santa Rosa0
- Volcano0
- Walnut0
- Walnut Park0
- Washington0
- Wawona0
- Weed0
- West Covina0
- West Hollywood0
- West Puente Valley0
- West Whittier-Los Nietos0
- Westmorland0
- Whittier0
- Winterhaven0
- Yermo0
- Yosemite West0









