RANKABLE EPA COUNTY AQI
Collin Air Quality - Texas
EPA county-level evidence, NDS comparative intelligence, and 48 connected ZIP profiles.
Median AQI
39.0
Maximum AQI
151.0
Good-air-quality days
84.21%
Average PM2.5
N/A
NDS Air Quality Score
47.52
U.S. County Rank
606 of 1,049
Percentile
42.08
Grade
C
County status
Collin 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.