RANKABLE EPA COUNTY AQI
Rockwall Air Quality - Texas
EPA county-level evidence, NDS comparative intelligence, and 1 connected ZIP profiles.
Median AQI
31.0
Maximum AQI
108.0
Good-air-quality days
95.83%
Average PM2.5
N/A
NDS Air Quality Score
75.60
U.S. County Rank
162 of 1,049
Percentile
84.64
Grade
B
County status
Rockwall 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.