RANKABLE EPA COUNTY AQI
Air Quality in ZIP 59729 - Ennis, Montana
County-derived EPA air-quality evidence connected locally through National Data System.
Median AQI
14.0
Maximum AQI
62.0
Good-air-quality days
99.12%
Average PM2.5
2.694 ug/m3
NDS Air Quality Score
95.10
U.S. County Rank
6 of 1,049
Percentile
99.52
Grade
A+
What the data means
ZIP 59729 is connected to governed EPA county-level air-quality evidence for Gallatin.
ZIP ranking note: ZIPs are not separately ranked. The rank shown on this page is the associated county rank because the EPA AQI evidence used here is county-derived.
County context
Methodology
EPA AQI evidence is county-derived. NDS connects that evidence to ZIP geography where a governed county relationship exists. NDS does not claim that EPA directly ranks ZIP codes.