RANKABLE EPA COUNTY AQI
Santa Cruz Air Quality - California
EPA county-level evidence, NDS comparative intelligence, and 20 connected ZIP profiles.
Median AQI
37.0
Maximum AQI
71.0
Good-air-quality days
81.77%
Average PM2.5
5.607 ug/m3
NDS Air Quality Score
65.09
U.S. County Rank
325 of 1,049
Percentile
68.99
Grade
C
County status
Santa Cruz is part of the governed NDS rankable EPA county universe.
Connected ZIP codes
Methodology
EPA AQI evidence used here is county-derived. ZIP profiles connect to this evidence through the governed NDS geography relationship.