RANKABLE EPA COUNTY AQI
Air Quality in ZIP 94117 - San Francisco, California
County-derived EPA air-quality evidence connected locally through National Data System.
Median AQI
33.0
Maximum AQI
94.0
Good-air-quality days
76.05%
Average PM2.5
6.640 ug/m3
NDS Air Quality Score
64.95
U.S. County Rank
327 of 1,049
Percentile
68.80
Grade
C
What the data means
ZIP 94117 is connected to governed EPA county-level air-quality evidence for San Francisco.
ZIP ranking note: ZIPs are not separately ranked. The rank shown on this page is the associated county rank because the EPA AQI evidence used here is county-derived.
County context
Methodology
EPA AQI evidence is county-derived. NDS connects that evidence to ZIP geography where a governed county relationship exists. NDS does not claim that EPA directly ranks ZIP codes.