CityFunIndex

San Diego, CA · the CityFunIndex

Air quality in San Diego

San Diego ranks T#75 of 134 US cities for clean air, with a clean-air score of 44 — Some Fun. That puts it in the 45th percentile nationally and #14 of 18 in California.

clean-air score
44
Some Fun
National rank
T#75 of 134
In California
#14 of 18
Percentile
45th

The typical city scores 50 for clean air; San Diego sits 6 points below the median.

How air quality is measured

Recent particulate matter and ozone levels — a trailing-week air-quality average.

The clean-air score is the flip side of our air quality measure — 100 minus the raw air quality score — so a city with less of it scores higher.

Data sources: EPA AirNow and OpenAQ pollution readings (seven-day trailing average).

Full methodology → Glossary The raw measurement is part of the Data plan →

Ranked around San Diego

  1. T#73 Atlanta, GA 45
  2. T#73 Charlotte, NC 45
  3. T#75 San Diego, CA — this page 44
  4. #77 Stockton, CA 43
  5. #78 Fort Wayne, IN 42

See the full leaderboard — Cities with the cleanest air →

Top US cities for clean air

  1. #1 Anchorage, AK 100
  2. #2 Bend, OR 99
  3. T#3 Lubbock, TX 98
  4. T#3 Telluride, CO 98
  5. #5 Montgomery, AL 97

More about San Diego

San Diego scores 74 overall (Very Fun) on the CityFunIndex. Its strongest factors: