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Air quality index (AQI) and PM2.5 air pollution in California
AIR QUALITY DATA CONTRIBUTORS
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LIVE AQI CITY RANKING
Real-time California
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Solano | 0 |
| 2 | Acalanes Ridge | 1 |
| 3 | Byron | 1 |
| 4 | Capitola | 1 |
| 5 | San Miguel | 1 |
| 6 | Boonville | 2 |
| 7 | Laguna | 2 |
| 8 | Laguna Woods | 2 |
| 9 | Lake San Marcos | 2 |
| 10 | Midpines | 2 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
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The latest air quality news and resources.
California air quality data attribution
5667Contributors
- California Air Resources Board (CARB)
226 stations
- Spare the Air - Sacramento Region
13 stations
USA National Park Service24 stations
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El Dorado County Air Quality Management District11 stations
Palo Alto OES1 station
19 Government Contributors
Coalition for Clean Air (CCA)248 stations
Climate First: Replacing Oil and Gas (CFROG)3 stations
ActiveSGV - Active San Gabriel Valley1 station
- Safer Together San Francisco
1 station
5 Non-profit organization Contributors
- Oakland Unified School District
9 stations
- Coachella Valley Unified School District
9 stations
- El Centro Elementary School District
2 stations
- Ackerman Charter School District
1 station
Ravenswood City School District IOT2 stations
- West Contra Costa Unified School District
3 stations
Harvard-Westlake School3 stations
- Calexico Unified School District
2 stations
- Livermore Valley Unified School District
1 station
- Plaza Community Services La Roca Verde
1 station
- Los Angeles Unified School District
1 station
- nora caruso
1 station
- Rialto Unified School District
1 station
Grove Preschool2 stations
USC Environmental Health Centers1 station
15 Educational Contributors
Baldacci Family Vineyards1 station
Scribe Winery1 station
Forster Ranch1 station
IQAir Air Quality Science Team5 stations
- Stripe
1 station
5 Corporate Contributors
- Weledelzeergeleerde Heer
1 station
Pat Conway1 station
- Gustavo R. Guimarães
1 station
Aaron Solochek1 station
- GDH
1 station
- Steve
9 stations
- RSM1
1 station
- Timothy Wilson
1 station
- -
1 station
- ddavies0001
2 stations
- IQAir community Member
1 station
- Nathan Pyle, MA
1 station
- justin bright
1 station
Hunter1 station
- Chuck Kissner
1 station
- Chris
1 station
- Alejandra Perez
1 station
- CK
1 station
- chris
1 station
- Ben
1 station
- Brent
1 station
- JT
1 station
- IQAir Community Member
1 station
- Charlie Leonard
1 station
- AC
1 station
Camille1 station
Nick Chapman1 station
- IQAir Community Member
1 station
- Jeremy
1 station
KellerG1 station
- IQAir Community Member
1 station
- Anonymous
1 station
janet fouts1 station
- dra
1 station
- Phong Nguyen
1 station
- WH57
1 station
- kevin
1 station
- Igor Solomennikov
1 station
- Anonymous
2 stations
- Mat Henley
1 station
BS2 stations
- tripleD
1 station
- IQAir PDR Member
1 station
- Dan P
1 station
- Travis Thompson
1 station
Lane@IQAir1 station
- Chandler Dunlap - Dutch Bros
2 stations
- Anonymous
1 station
- IQAir Community Member
1 station
- Jen & Jason Van Dinter
1 station
- Robert M
1 station
- A & O Aryal
1 station
Daniel Rich1 station
treemocker1 station
Friendly Neighbor1 station
- FlyGirl
1 station
- Lars
1 station
Hippopo1 station
- Hogwarts
1 station
- Stephen Schlie
1 station
- Shawn
1 station
- Brian Morton
1 station
- efeff
1 station
- Brian Goshorn
1 station
- Spongebob Airpants
1 station
- Anonymous
1 station
- Matt
1 station
- William
1 station
- A.Kuehlmann
1 station
ChemistChristi1 station
- Leslie Barnes
1 station
- Hugh Wimberly
1 station
Upavas1 station
- Max C
1 station
HGR barn1 station
anonymous1 station
Jim Minton1 station
- Ben
1 station
- JMA
1 station
- anonymoose
1 station
Jim Cornick1 station
- Michael Nielsen
1 station
- C.L.
1 station
Will Mason2 stations
- Meinrat Andreae
1 station
- nontexan
1 station
- Simon Walker
1 station
Anonymous1 station
chubert1 station
- Randy Steen
1 station
- Lorien
1 station
- Karl8704
1 station
- Wim Coekaerts
1 station
Darell1 station
AL1 station
Red Dog Ranch1 station
- Adam
1 station
- Jonathan Sorenson
1 station
- Mark Legassie
1 station
- Anonymous
1 station
- Michi Watchdog
1 station
- EJ
1 station
- Nicklas Johnson
1 station
- John Grossman
1 station
- KKastle IQ
1 station
- Erina Love
1 station
- Margot
1 station
- FamilyD
1 station
JGM1 station
Pacific View Air1 station
- GB
1 station
- Sasha
1 station
JC1 station
- Wikinaut
1 station
- Matt Newkirk
1 station
- russ
1 station
- chono
1 station
- msuttie
1 station
- rkjunior
1 station
J1 station
- Erik Bjorling
1 station
- Quail Mountain Lane
1 station
- Logan Bruns
1 station
- rbernabe
1 station
- KBT
1 station
- mjburns
1 station
- Anonymous
1 station
- quick.wood7910
1 station
- Patrick
1 station
- kelp
1 station
- GB
1 station
Neighborhood Brush Creek1 station
- IQAir Community Member
1 station
Brink1 station
Caspar1 station
Aaron Graf1 station
- Jack
1 station
- khowser10
1 station
- Integrity
1 station
- ucweather
1 station
Sanchez Way1 station
- Willow Glen - Sandra
1 station
- David
1 station
- variousplaces
1 station
- John Wright
1 station
- Robert Hawthorne
1 station
- Shrisha Radhakrishna
1 station
- Rana Rekhi
1 station
- Shearwater
1 station
- bearklaw
1 station
- Tom Bacus
1 station
- Sierra
1 station
- BJ
1 station
- eliotsensor
1 station
- Anonymous
1 station
- kpurvis
1 station
SP1 station
- David T
1 station
Rob Darby1 station
Tom Conrad1 station
- Chuck Tyler
1 station
- Chris Minick
1 station
- LHJB
1 station
- csm10495
1 station
- Steve Taubman
1 station
- Eric Sun
1 station
- Terrace 500
1 station
- Grid Man
1 station
- Gennady
1 station
- johnnygerman
1 station
michael price1 station
- Allen Hutchison
1 station
Stephen Franklin1 station
- E P
1 station
- alesl
1 station
- Jeff Kessler
1 station
- Jim Crawford
1 station
- JS
1 station
- Stan Watt
1 station
- David P. Balogh
1 station
180 Individual Contributors
5443 Anonymous contributors5443 stations
5443 Anonymous Contributors
13 Data sources
PurpleAir
Clarity Movement Co.- California Air Resources Board (CARB)
AirNow
IQAir- Spare the Air - Sacramento Region
- San Diego County Air Pollution Control District (SDAPCD)
Imperial County Department of Toxic Substance and Comite Civico del Valle- San Joaquin Valley Air Pollution Control District
- Bay Area Air Quality Management District (BAAQMD)
Imperial County Air Pollution Control District (ICAPCD)- USA National Park Service
Santa Barbara County Air Pollution Control District
Which is the most polluted city in California?
- Gridley 153
- Westmorland 76
- Oceano 72
- Imperial 68
- Calexico 61
- Mecca 59
- Highland 56
- La Jolla 49
- Compton 45
- Glen Avon 45
- Westwood 44
- El Cerrito Corona 43
- Home Gardens 43
- Kern 43
- California City 42
- Chino 42
- East La Mirada 42
- Highgrove 42
- Jurupa Valley 42
- La Mesa 42
- Los Serranos 42
- March Air Force Base 42
- Mead Valley 42
- Norco 42
- Pedley 42
- Placentia 42
- Rowland Heights 42
- Rubidoux 42
- Sunnyslope 42
- Villa Park 42
- Walnut 42
- Woodcrest 42
- Avocado Heights 41
- Garden Grove 41
- Grand Terrace 41
- Koreatown 41
- La Puente 41
- Montclair 41
- Santa Fe Springs 41
- South El Monte 41
- South San Jose Hills 41
- South Whittier 41
- Valinda 41
- West Puente Valley 41
- West Whittier-Los Nietos 41
- Artesia 40
- Bell Gardens 40
- Cerritos 40
- Charter Oak 40
- Citrus 40
- Commerce 40
- Covina 40
- East Los Angeles 40
- Florence-Graham 40
- Good Hope 40
- Irwindale 40
- La Palma 40
- Lucerne Valley 40
- Mayflower Village 40
- Mentone 40
- Montebello 40
- Muscoy 40
- North El Monte 40
- Paramount 40
- San Dimas 40
- South San Gabriel 40
- Stanton 40
- Temple City 40
- Vincent 40
- Walnut Park 40
- Azusa 39
- Bellflower 39
- Bradbury 39
- Brawley 39
- East Pasadena 39
- East Rancho Dominguez 39
- East San Gabriel 39
- Echo Park 39
- El Cajon 39
- Foothill Ranch 39
- Hawaiian Gardens 39
- Los Alamitos 39
- Nuevo 39
- Portola Hills 39
- San Antonio Heights 39
- Westminster 39
- Westmont 39
- Arroyo Grande 38
- Chico 38
- Meadowbrook 38
- Midway City 38
- Quail Valley 38
- Romoland 38
- Rossmoor 38
- Victorville 38
- West Athens 38
- West Rancho Dominguez 38
- Aliso Viejo 37
- Calipatria 37
- Canyon Lake 37
- Century City 37
- Claremont 37
- Coto De Caza 37
- Ladera Heights 37
- Laguna Hills 37
- Lakeland Village 37
- Lennox 37
- Menifee 37
- Sun City 37
- Universal City 37
- Biggs 36
- Burney 36
- Del Aire 36
- Green Acres 36
- Homeland 36
- Alondra Park 35
- Cabazon 35
- Dinuba 35
- Fountain Valley 35
- Lawndale 35
- North Hollywood 35
- San Benito 35
- Sedco Hills 35
- Sunland 35
- Wildomar 35
- East Hemet 34
- Newhall 34
- Northridge 34
- Shasta Lake 34
- Twentynine Palms 34
- Valle Vista 34
- Van Nuys 34
- Willowbrook 34
- Barstow 33
- Bermuda Dunes 33
- Camp Pendleton South 33
- Crestline 33
- Desert Edge 33
- Dirty Socks 33
- Garnet 33
- Hanford 33
- Hidden Hills 33
- Idyllwild 33
- Indian Wells 33
- Las Flores 33
- Maywood 33
- Murrieta Hot Springs 33
- North Hills 33
- Rancho Mirage 33
- Rancho Penasquitos 33
- Red Bluff 33
- Reseda 33
- Rialto 33
- Thousand Palms 33
- Vista Santa Rosa 33
- Yuba City 33
- Aguanga 32
- Gardena 32
- Hollywood 32
- Loma Linda 32
- Mojave 32
- Nipomo 32
- Orange 32
- Palos Verdes Estates 32
- Rainbow 32
- Rancho Santa Margarita 32
- Redding 32
- San Gabriel 32
- Shandon 32
- Agoura 31
- Bakersfield 31
- Banning 31
- Bonsall 31
- Bostonia 31
- Boyle Heights 31
- Glendora 31
- Hesperia 31
- Hidden Meadows 31
- Oasis 31
- San Bernardino 31
- San Pasqual 31
- San Pedro 31
- Sorrento Valley 31
- Alpine 30
- Camp Pendleton North 30
- Carson 30
- Casa de Oro-Mount Helix 30
- Chula Vista 30
- Clovis 30
- Crest 30
- Eucalyptus Hills 30
- Fairbanks Ranch 30
- Granite Hills 30
- Grass Valley 30
- Jamul 30
- La Habra 30
- La Jolla Shores 30
- La Presa 30
- Maricopa 30
- Mira Mesa 30
- National City 30
- Paso Robles 30
- Phelan 30
- Rancho San Diego 30
- Riverside 30
- Rolling Hills 30
- Winter Gardens 30
- Yosemite Valley 30
- Auburn 29
- Beaumont 29
- Bill Stanley 29
- Felton 29
- Fresno 29
- Harbison Canyon 29
- Imperial Beach 29
- Indio 29
- Modesto 29
- Old Fig Garden 29
- San Fernando 29
- Santa Susana 29
- South Gate 29
- Trona 29
- Willow Creek 29
- Bertsch-Oceanview 28
- Canoga Park 28
- Colton 28
- Cudahy 28
- Cypress 28
- Desert Shores 28
- Huntington Park 28
- Lynwood 28
- Madera 28
- Redwood City 28
- San Diego Country Estates 28
- San Rafael 28
- Shafter 28
- Tranquillity 28
- Yosemite Np Turtleback Dome 28
- Bayview 27
- Berkeley 27
- Big Bear City 27
- Bishop 27
- Humboldt Hill 27
- Julian 27
- Terra Bella 27
- Vallejo 27
- Visalia 27
- Alhambra 26
- Baldwin Park 26
- Bell 26
- Calimesa 26
- Chatsworth 26
- Descanso 26
- El Segundo 26
- Heber 26
- Lake Elsinore 26
- Merced 26
- Morro Bay 26
- Oak Hills 26
- Paicines 26
- Pine Hills 26
- Santa Maria 26
- Seeley 26
- West Hollywood 26
- Anaheim 25
- Bloomington 25
- Coronado 25
- Cutten 25
- Holtville 25
- Huron 25
- Ladera Ranch 25
- Monterey Park 25
- Myrtletown 25
- Olancha 25
- Ontario 25
- Orcutt 25
- Pine Valley 25
- Roseville 25
- San Francisco 25
- Spring Valley 25
- Tahoe City 25
- Tracy 25
- Venice 25
- Yucaipa 25
- Agua Dulce 24
- Blythe 24
- Ceres 24
- Fullerton 24
- Hacienda Heights 24
- Hemet 24
- Joshua Tree 24
- Los Angeles 24
- Mountain View Acres 24
- Pasadena 24
- Redlands 24
- Rio Dell 24
- San Diego 24
- San Marino 24
- Shadow Hills 24
- Sonora 24
- Bodfish 23
- Bonita 23
- Caspar 23
- China Lake Acres 23
- Fallbrook 23
- Fontana 23
- Fort Bragg 23
- Glendale 23
- Hollister 23
- La Mirada 23
- Lomita 23
- Monrovia 23
- Moreno Valley 23
- Palm Desert 23
- Ridgecrest 23
- Sherman Oaks 23
- Signal Hill 23
- Stockton 23
- Turlock 23
- West Hills 23
- Acton 22
- Bass Lake 22
- Camino 22
- Inyokern 22
- Isla Vista 22
- Long Beach 22
- Niland 22
- Palm Springs 22
- Piru 22
- Sacramento 22
- San Jose 22
- Santa Ana 22
- Silver Lake 22
- Spring Valley Lake 22
- Tujunga 22
- View Park-Windsor Hills 22
- Weldon 22
- Winchester 22
- Adelanto 21
- Arcadia 21
- Cathedral City 21
- Coachella 21
- Desert Hot Springs 21
- Desert View Highlands 21
- Encino 21
- Kirkwood 21
- Klamath 21
- Marina del Rey 21
- Miramonte 21
- Oakland 21
- Portola 21
- San Andreas 21
- San Pablo 21
- Sequoia National Park 21
- Studio City 21
- Sun Village 21
- Westlake Village 21
- Yucca Valley 21
- Buena Park 20
- Buttonwillow 20
- Carmel Valley 20
- Chester 20
- Corona 20
- Duarte 20
- Folsom 20
- Ford City 20
- Fort Irwin 20
- Glenn 20
- Lakeside 20
- Leona Valley 20
- Lone Pine 20
- Los Gatos 20
- Searles Valley 20
- South Pasadena 20
- South Taft 20
- Springville 20
- Taft Heights 20
- Woodland 20
- Woodland Hills 20
- Anza 19
- Davis 19
- Del Mar 19
- El Centro 19
- Greenacres 19
- Jackson 19
- La Canada Flintridge 19
- Lake Los Angeles 19
- Lakeview 19
- Littlerock 19
- Lost Hills 19
- McFarland 19
- North Tustin 19
- Oceanside 19
- Pinon Hills 19
- Pomona 19
- Ramona 19
- Rosedale 19
- San Jacinto 19
- Santa Margarita 19
- Thermal 19
- Vista 19
- Whittier 19
- Wrightwood 19
- Alpaugh 18
- Apple Valley 18
- Arnold 18
- Borrego Springs 18
- Culver City 18
- Delano 18
- Diamond Bar 18
- Earlimart 18
- East Porterville 18
- El Rio 18
- Escondido 18
- Ferndale 18
- Fortuna 18
- Frazier Park 18
- Hayfork 18
- Keeler 18
- La Verne 18
- Laguna Niguel 18
- Lakewood 18
- Lemon Grove 18
- Meiners Oaks 18
- Mesa Verde 18
- Mira Monte 18
- Mission Viejo 18
- Norwalk 18
- Oak View 18
- Palo Cedro 18
- Pixley 18
- Poplar-Cotton Center 18
- Richgrove 18
- Rough and Ready 18
- San Clemente 18
- Santa Ynez 18
- Saticoy 18
- Sky Valley 18
- Strathmore 18
- Teviston 18
- Tipton 18
- Vandenberg Village 18
- West Carson 18
- Woodville 18
- Beverly Hills 17
- Corcoran 17
- Dana Point 17
- Easton 17
- Encinitas 17
- Escalon 17
- Eureka 17
- Farmersville 17
- Happy Camp 17
- King City 17
- Lamont 17
- Lindsay 17
- Loma Rica 17
- Pine Mountain Club 17
- Pismo Beach 17
- Porterville 17
- Redondo Beach 17
- Sierra Madre 17
- Silver Lakes 17
- Tehama 17
- Upland 17
- Weedpatch 17
- West Covina 17
- Woodlake 17
- Arvin 16
- Big River 16
- Camp Nelson 16
- Campo 16
- Channel Islands Beach 16
- Downey 16
- Elk Grove 16
- Fort Jones 16
- Hawthorne 16
- Hoopa 16
- Hume 16
- Inyo 16
- Ivanhoe 16
- June Lake 16
- La Crescenta-Montrose 16
- La Habra Heights 16
- Laguna Beach 16
- Lake Forest 16
- Lincoln 16
- Los Molinos 16
- Matheny 16
- McCloud 16
- Mono Vista 16
- Morongo Valley 16
- Orange Cove 16
- Palermo 16
- Paradise 16
- Patterson Tract 16
- Penn Valley 16
- Perris 16
- Pico Rivera 16
- Plumas Lake 16
- Rancho Cucamonga 16
- Rancho Tehama Reserve 16
- Rio Vista 16
- Santa Barbara 16
- Santee 16
- Shingletown 16
- Simi Valley 16
- South Oroville 16
- Squaw Valley 16
- Summerland 16
- Thousand Oaks 16
- Toro Canyon 16
- Torrance 16
- Trabuco Canyon 16
- Yorba Linda 16
- Agoura Hills 15
- Armona 15
- Auburn Lake Trails 15
- Avenal 15
- Big Bear Lake 15
- Big Pine 15
- Bodega Bay 15
- Bonadelle Ranchos-Madera Ranchos 15
- Camarillo 15
- Carlsbad 15
- Caruthers 15
- Chino Hills 15
- Del Rey 15
- Diamond Springs 15
- Dixon Lane-Meadow Creek 15
- Dunsmuir 15
- Exeter 15
- Foresthill 15
- Fowler 15
- Freedom 15
- Goshen 15
- Home Garden 15
- Inglewood 15
- Janesville 15
- Kettleman City 15
- Kingsburg 15
- La Quinta 15
- Lake Arrowhead 15
- Lake Isabella 15
- Lancaster 15
- Laton 15
- Lemoore 15
- Lemoore Station 15
- London 15
- Madera Acres 15
- Minkler 15
- North Auburn 15
- Ojai 15
- Palmdale 15
- Parksdale 15
- Rancho Palos Verdes 15
- Red Corral 15
- Rolling Hills Estates 15
- Rosamond 15
- Rosemead 15
- Santa Paula 15
- Scotia 15
- Seal Beach 15
- Selma 15
- Shasta 15
- Stallion Springs 15
- Stratford 15
- Sunnyside 15
- Tarpey Village 15
- Topanga 15
- Vandenberg Air Force Base 15
- Warner Springs 15
- Weed 15
- West Park 15
- Westhaven-Moonstone 15
- Wofford Heights 15
- Yreka 15
- Alta Sierra 14
- Altadena 14
- Anderson 14
- Antelope 14
- Biola 14
- Blue Lake 14
- Boron 14
- Brooktrails 14
- Callender 14
- Casa Conejo 14
- Cedar Ridge 14
- Durham 14
- East Sonora 14
- Edwards Air Force Base 14
- Fairmead 14
- Foothill Farms 14
- Goleta 14
- Graeagle 14
- Grover Beach 14
- Lake of the Pines 14
- Lakehead-Lakeshore 14
- Le Grand 14
- Linda 14
- Lompoc 14
- Los Alamos 14
- Mammoth Lakes 14
- Marysville 14
- Mission Hills 14
- Montague 14
- Moorpark 14
- Mount Hermon 14
- Mount Shasta 14
- Mountain Ranch 14
- Needles 14
- North Edwards 14
- North Highlands 14
- Oak Park 14
- Oildale 14
- Olivehurst 14
- Orland 14
- Parkwood 14
- Pasatiempo 14
- Planada 14
- San Joaquin Hills 14
- Santa Monica 14
- Sheridan 14
- Sisquoc 14
- Soulsbyville 14
- South Lake Tahoe 14
- South Yuba City 14
- Susanville 14
- Three Rivers 14
- Tierra Buena 14
- Yuba 14
- Barstow Heights 13
- Blackhawk 13
- Camp Meeker 13
- Castaic 13
- Cayucos 13
- Cherry Valley 13
- Coalinga 13
- Coleville 13
- Colma 13
- Cottonwood 13
- Downieville 13
- Dunnigan 13
- Florin 13
- Gasquet 13
- Guadalupe 13
- Huntington Beach 13
- Idyllwild-Pine Cove 13
- Irvine 13
- Lee Vining 13
- Lenwood 13
- Lewiston 13
- Lompico 13
- Loyalton 13
- Malibu 13
- Maxwell 13
- Meadow Vista 13
- Monument Hills 13
- Newport Beach 13
- Oakhurst 13
- Opal Cliffs 13
- Oroville East 13
- Oxnard 13
- Parkway 13
- Pine Grove 13
- Pollock Pines 13
- Redwood Shores 13
- Rosemont 13
- Running Springs 13
- Salton City 13
- San Joaquin 13
- Seacliff 13
- Sunnyside-Tahoe City 13
- Taft 13
- Thermalito 13
- Tulelake 13
- Tuolumne City 13
- Ventura 13
- Vineyard 13
- Visitacion Valley 13
- Waterford 13
- Alturas 12
- Aptos Hills-Larkin Valley 12
- Avila Beach 12
- Beale Air Force Base 12
- Berry Creek 12
- Broadmoor 12
- Butte 12
- Calabasas 12
- Cambrian Park 12
- Carmel Valley Village 12
- Carpinteria 12
- Clay 12
- Clear Lake Riviera 12
- Clearlake Oaks 12
- Corning 12
- Crescent City 12
- Cutler 12
- Delhi 12
- Denair 12
- East Quincy 12
- Fillmore 12
- Forest Meadows 12
- Forest Ranch 12
- Fruitridge Pocket 12
- Georgetown 12
- Golden Hills 12
- Hilmar-Irwin 12
- Hornbrook 12
- Johnstonville 12
- Kelso 12
- Lebec 12
- Livingston 12
- Magalia 12
- Manhattan Beach 12
- McKinleyville 12
- Mono 12
- Nevada City 12
- Nevada County 12
- Newman 12
- Nice 12
- Placer 12
- Plumas 12
- Roseland 12
- San Luis Obispo 12
- Sanger 12
- Santa Clarita 12
- Sleepy Hollow 12
- Soda Bay 12
- Solvang 12
- Stonyford 12
- Sutter 12
- Tuolumne 12
- Tustin 12
- Upper Lake 12
- Val Verde 12
- Valencia 12
- Valley Center 12
- Valley Springs 12
- West Menlo Park 12
- Winters 12
- Winton 12
- Allendale 11
- Amesti 11
- Arcata 11
- Ashland 11
- Atwater 11
- August 11
- Boyes Hot Springs 11
- Bret Harte 11
- Bridgeport 11
- Bystrom 11
- Cambria 11
- Castroville 11
- Cherryland 11
- Colfax 11
- Collierville 11
- Cool 11
- Country Club 11
- Del Rio 11
- Dogtown 11
- Dos Palos 11
- East Foothills 11
- El Dorado 11
- El Monte 11
- El Verano 11
- Empire 11
- Fetters Hot Springs-Agua Caliente 11
- French Camp 11
- Garden Acres 11
- Green Valley 11
- Gustine 11
- Hamilton City 11
- Hartley 11
- Herald 11
- Hidden Valley Lake 11
- Interlaken 11
- Kennedy 11
- Kerman 11
- Keyes 11
- Kings Beach 11
- Las Lomas 11
- Lincoln Village 11
- Linden 11
- Lockeford 11
- Los Olivos 11
- Mendota 11
- Middletown 11
- Montalvin 11
- Morada 11
- North Richmond 11
- Pajaro 11
- Placerville 11
- Poway 11
- Reedley 11
- Rio Linda 11
- Riverbank 11
- Riverdale Park 11
- Rollingwood 11
- Salida 11
- Saranap 11
- Seven Trees 11
- Shackelford 11
- South Dos Palos 11
- Stanislaus 11
- Stevenson Ranch 11
- Taft Mosswood 11
- Tahoe Vista 11
- Tahoma 11
- Tara Hills 11
- Tehachapi 11
- Thornton 11
- Truckee 11
- Vine Hill 11
- Waldon 11
- Walnut Grove 11
- Wasco 11
- West Modesto 11
- Wheatland 11
- Willows 11
- Amador 10
- Angels Camp 10
- Arbuckle 10
- Aromas 10
- Bethel Island 10
- Boronda 10
- Brentwood 10
- Buena Vista 10
- Carnelian Bay 10
- Central Valley (historical) 10
- Chowchilla 10
- Chualar 10
- Coarsegold 10
- Cobb 10
- Eastvale 10
- El Granada 10
- Esparto 10
- Gerber 10
- Gonzales 10
- Greenville 10
- Humboldt 10
- Hydesville 10
- Kelseyville 10
- Knightsen 10
- La Grange 10
- Lake Nacimiento 10
- Lake Wildwood 10
- Lathrop 10
- Lodi 10
- Loomis 10
- Los Banos 10
- Mariposa 10
- Mendocino 10
- Murrieta 10
- North Fork 10
- Oakley 10
- Oroville 10
- Pacifica 10
- Patterson 10
- Rancho Murieta 10
- Riverdale 10
- Solana Beach 10
- Trinity 10
- West Bishop 10
- Alum Rock 9
- Bayside 9
- Bella Vista 9
- Buellton 9
- Carmichael 9
- Challenge-Brownsville 9
- Corralitos 9
- Covelo 9
- Daly City 9
- Davenport 9
- Deer Park 9
- Dollar Point 9
- East Palo Alto 9
- Firebaugh 9
- Guerneville 9
- Larkspur 9
- Los Osos 9
- Mill Valley 9
- Monte Rio 9
- Newark 9
- Orosi 9
- Parlier 9
- Phoenix Lake 9
- Prather 9
- Quartz Hill 9
- Quincy 9
- Rancho Santa Fe 9
- Ridgemark 9
- San Lorenzo 9
- Twain Harte 9
- Twin Lakes 9
- Albany 8
- Antioch 8
- Aptos 8
- Atherton 8
- Auberry 8
- Avalon 8
- Belvedere 8
- Boulder Creek 8
- Buckhorn 8
- Calaveras 8
- Campbell 8
- Citrus Heights 8
- Concord 8
- Copperopolis 8
- Corte Madera 8
- Costa Mesa 8
- Discovery Bay 8
- East Oakdale 8
- Emeryville 8
- Gilroy 8
- Gold River 8
- Gualala 8
- Hughson 8
- Kentfield 8
- Larkfield-Wikiup 8
- Loyola 8
- Lucerne 8
- Macdoel 8
- Manteca 8
- Martinez 8
- Menlo Park 8
- Montara 8
- Mountain View 8
- Murphys 8
- Napa 8
- North Fair Oaks 8
- Novato 8
- Palo Alto 8
- Pinole 8
- Pioneer 8
- Pleasant Hill 8
- Port Hueneme 8
- Rancho Calaveras 8
- Redwood Valley 8
- Richmond 8
- Rio Del Mar 8
- Ross 8
- Saint Helena 8
- San Anselmo 8
- San Juan Bautista 8
- San Marcos 8
- Santa Clara 8
- Santa Venetia 8
- Sausalito 8
- South San Francisco 8
- Strawberry 8
- Sunnyvale 8
- Sutter Creek 8
- Temecula 8
- Tulare 8
- Vacaville 8
- Weaverville 8
- Williams 8
- Windsor 8
- Alameda 7
- Bay Point 7
- Bear Valley Springs 7
- Brisbane 7
- Burlingame 7
- Cameron Park 7
- Clayton 7
- Colusa 7
- Contra Costa Centre 7
- Crockett 7
- Cupertino 7
- Danville 7
- Day Valley 7
- Dixon 7
- El Dorado Hills 7
- El Sobrante 7
- Elverta 7
- Fairfield 7
- Forestville 7
- Fremont 7
- Granite Bay 7
- Greenfield 7
- Half Moon Bay 7
- Hayward 7
- Healdsburg 7
- Hermosa Beach 7
- Highlands-Baywood Park 7
- Hillsborough 7
- Kensington 7
- Kenwood 7
- La Selva Beach 7
- Lakeport 7
- Laytonville 7
- Live Oak 7
- Los Altos 7
- Los Altos Hills 7
- Lucas Valley-Marinwood 7
- Marina 7
- Monterey 7
- Morgan Hill 7
- Newcastle 7
- Noe Valley 7
- Orinda 7
- Orleans 7
- Pacheco 7
- Piedmont 7
- Portola Valley 7
- Rancho Cordova 7
- Rocklin 7
- Rohnert Park 7
- San Carlos 7
- San Leandro 7
- San Mateo 7
- San Ramon 7
- Santa Cruz 7
- Santa Rosa 7
- Sea Ranch 7
- Sierra 7
- Siskiyou 7
- Sonoma 7
- Tamalpais-Homestead Valley 7
- Tiburon 7
- Ukiah 7
- Union City 7
- Walnut Creek 7
- Willits 7
- Woodbridge 7
- Woodside 7
- Ahwahnee 6
- Alamo 6
- Angwin 6
- Atascadero 6
- Belmont 6
- Ben Lomond 6
- Benicia 6
- Brea 6
- Calistoga 6
- Castro Valley 6
- Cloverdale 6
- East Richmond Heights 6
- Fair Oaks 6
- Fairfax 6
- Fairview 6
- Graton 6
- La Riviera 6
- Lafayette 6
- Lagunitas-Forest Knolls 6
- Livermore 6
- Marin 6
- Marin City 6
- Millbrae 6
- Milpitas 6
- Mission District 6
- Moraga 6
- Mountain House 6
- Oakdale 6
- Petaluma 6
- Pittsburg 6
- Pleasanton 6
- Potter Valley 6
- Prunedale 6
- Redway 6
- Rodeo 6
- Salinas 6
- Saratoga 6
- Scotts Valley 6
- Seaside 6
- Sebastopol 6
- Shingle Springs 6
- Soquel 6
- Stanford 6
- Talmage 6
- Woodacre 6
- Yountville 6
- Arden-Arcade 5
- Black Point-Green Point 5
- Bolinas 5
- Burbank 5
- Carmel-by-the-Sea 5
- Columbia 5
- Cotati 5
- Del Monte Forest 5
- Del Rey Oaks 5
- Dublin 5
- El Cerrito 5
- Eldridge 5
- Elkhorn 5
- Emerald Lake Hills 5
- Foster City 5
- Galt 5
- Inverness 5
- Ione 5
- Jamestown 5
- Ladera 5
- Lexington Hills 5
- Lower Lake 5
- Mission Canyon 5
- Monte Sereno 5
- Nashville 5
- North Lakeport 5
- Occidental 5
- Olympic Valley 5
- Orangevale 5
- Penngrove 5
- Ripon 5
- San Bruno 5
- San Martin 5
- Shaver Lake 5
- Soledad 5
- Tamalpais Valley 5
- Temelec 5
- Templeton 5
- Cuyama 4
- Diablo 4
- Hercules 4
- Moss Beach 4
- Pacific Grove 4
- Plymouth 4
- Point Arena 4
- Suisun 4
- Watsonville 4
- Yolo 4
- American Canyon 3
- Bonny Doon 3
- Brookdale 3
- Clearlake 3
- Kernville 3
- Montecito 3
- San Juan Capistrano 3
- Wilton 3
- Yosemite Lakes 3
- Boonville 2
- Laguna 2
- Laguna Woods 2
- Lake San Marcos 2
- Midpines 2
- West Sacramento 2
- Acalanes Ridge 1
- Byron 1
- Capitola 1
- San Miguel 1
- Solano 0
AQI US, Metric