RANKABLE EPA COUNTY AQI
Herkimer Air Quality - New York
EPA county-level evidence, NDS comparative intelligence, and 24 connected ZIP profiles.
Median AQI
29.0
Maximum AQI
45.0
Good-air-quality days
100.00%
Average PM2.5
N/A
NDS Air Quality Score
87.07
U.S. County Rank
74 of 1,049
Percentile
93.03
Grade
A
County status
Herkimer 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.