RANKABLE EPA COUNTY AQI
Custer Air Quality - Oklahoma
EPA county-level evidence, NDS comparative intelligence, and 10 connected ZIP profiles.
Median AQI
14.0
Maximum AQI
58.0
Good-air-quality days
99.58%
Average PM2.5
N/A
NDS Air Quality Score
87.72
U.S. County Rank
69 of 1,049
Percentile
93.51
Grade
A
County status
Custer is part of the governed NDS rankable EPA county universe.
Methodology
EPA AQI evidence used here is county-derived. ZIP profiles connect to this evidence through the governed NDS geography relationship.