RANKABLE EPA COUNTY AQI
St. Joseph Air Quality - Indiana
EPA county-level evidence, NDS comparative intelligence, and 20 connected ZIP profiles.
Median AQI
44.0
Maximum AQI
127.0
Good-air-quality days
63.00%
Average PM2.5
8.755 ug/m3
NDS Air Quality Score
32.32
U.S. County Rank
802 of 1,049
Percentile
23.38
Grade
D
County status
St. Joseph 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.