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Cleanest Air in California

Top 100 cities ranked by cleanest air

Best California Cities

Composite rankings combining multiple weighted metrics — 4 topics from climate and air quality data.

Best Climate Cities
Warm temperatures, plenty of sunshine and clean air.
Cleanest Air Cities
Lowest pollution levels for healthy outdoor living.
Sunniest Cities
Most days of sunshine per year, with warm and dry climate.
Most Urban Cities
Densely populated city centers with the largest urban footprints.
Population & Density
Largest Cities Smallest Cities Most Dense Least Dense
Economy
Highest Income Lowest Income Lowest Unemployment Highest Unemployment Lowest Poverty Highest Poverty Highest Wages Cheapest Cost of Living
Housing
Highest Home Value Most Affordable Highest Rent Lowest Rent Highest Homeownership Newest Housing Lowest Property Tax
Demographics & Education
Most Educated Best Schools Most Graduate Degrees Youngest Cities Oldest Cities Most Veterans
Health & Safety
Safest Cities Highest Crime Healthiest Cities Lowest Smoking Best Doctor Access Best Dental Access
Climate & Air
Warmest Cities Coldest Cities Rainiest Cities Driest Cities Sunniest Cities Snowiest Cities Cleanest Air Worst Air Quality
Quality of Life
Shortest Commute Most Work From Home
Civic & Politics
Most Republican Most Democratic Most Disasters
Geography & Infrastructure
Highest Elevation Best Broadband Most EV Stations Most Libraries Most Restaurants
All Countries  ·  United States  ·  California

Cleanest Air — California

1 Sonoma AQI 19
2 San Mateo AQI 27
3 San Francisco AQI 33
4 Monterey AQI 39
5 Santa Cruz AQI 39
6 Santa Clara AQI 47
7 Mountain View AQI 48
8 Folsom AQI 48
9 San Jose AQI 48
10 Alhambra AQI 48
11 Long Beach AQI 48
12 Oakland AQI 48
13 Bakersfield AQI 48
14 Anaheim AQI 48
15 Stockton AQI 48
16 Redwood City AQI 48
17 Santa Ana AQI 48
18 Irvine AQI 48
19 Chula Vista AQI 48
20 Santa Clarita AQI 48
21 Fremont AQI 48
22 Modesto AQI 48
23 Fontana AQI 48
24 Moreno Valley AQI 48
25 Oxnard AQI 48
26 Huntington Beach AQI 48
27 Glendale AQI 48
28 Ontario AQI 48
29 Elk Grove AQI 48
30 Santa Rosa AQI 48
31 Rancho Cucamonga AQI 48
32 Oceanside AQI 48
33 Garden Grove AQI 48
34 Lancaster AQI 48
35 Palmdale AQI 48
36 Salinas AQI 48
37 Hayward AQI 48
38 Corona AQI 48
39 Sunnyvale AQI 48
40 Roseville AQI 48
41 Escondido AQI 48
42 Pomona AQI 48
43 Torrance AQI 48
44 Visalia AQI 48
45 Fullerton AQI 48
46 Rancho Cordova AQI 48
47 Pasadena AQI 48
48 Victorville AQI 48
49 Simi Valley AQI 48
50 Thousand Oaks AQI 48
51 Vallejo AQI 48
52 Concord AQI 48
53 Clovis AQI 48
54 Berkeley AQI 48
55 Fairfield AQI 48
56 Antioch AQI 48
57 Richmond AQI 48
58 East Los Angeles AQI 48
59 Carlsbad AQI 48
60 Downey AQI 48
61 Murrieta AQI 48
62 Costa Mesa AQI 48
63 Temecula AQI 48
64 San Buenaventura (Ventura) AQI 48
65 Santa Maria AQI 48
66 West Covina AQI 48
67 El Monte AQI 48
68 Menifee AQI 48
69 Jurupa Valley AQI 48
70 Inglewood AQI 48
71 El Cajon AQI 48
72 Sunnyside AQI 48
73 Daly City AQI 48
74 Vacaville AQI 48
75 Chico AQI 48
76 Norwalk AQI 48
77 Hesperia AQI 48
78 Vista AQI 48
79 Arden-Arcade AQI 48
80 Tracy AQI 48
81 San Marcos AQI 48
82 Compton AQI 48
83 Carson AQI 48
84 Redding AQI 48
85 Mission Viejo AQI 48
86 South Gate AQI 48
87 Chino AQI 48
88 Santa Monica AQI 48
89 Indio AQI 48
90 Hemet AQI 48
91 Westminster AQI 48
92 Lakewood AQI 48
93 San Leandro AQI 48
94 Citrus Heights AQI 48
95 Manteca AQI 48
96 Hawthorne AQI 48
97 Whittier AQI 48
98 Livermore AQI 48
99 Lake Forest AQI 48
100 San Ramon AQI 48

Explore the top 100 cities ranked by cleanest air in California.

City rankings help residents, researchers, and policymakers understand how communities compare across important quality-of-life measures.

Data is sourced from the U.S. Census Bureau, FBI Crime Statistics, and NOAA climate records.

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