Counties with the Worst Air Quality in New Jersey
The top 15 of 15 New Jersey counties on GIS Map, ranked by median Air Quality Index, counting only counties that host an EPA air monitor.
| # | County | Median AQI |
|---|---|---|
| 1 | Camden County | 44 |
| 2 | Mercer County | 43 |
| 3 | Union County | 43 |
| 4 | Gloucester County | 41 |
| 5 | Hudson County | 41 |
| 6 | Hunterdon County | 41 |
| 7 | Ocean County | 41 |
| 8 | Bergen County | 40 |
| 9 | Cumberland County | 39 |
| 10 | Passaic County | 38 |
| 11 | Monmouth County | 37 |
| 12 | Morris County | 37 |
| 13 | Middlesex County | 36 |
| 14 | Warren County | 36 |
| 15 | Atlantic County | 35 |
Source: EPA Air Quality Index annual summary (2024). All counties with data are ranked. Estimates carry margins of error.
Citing this page: GIS Map, “Counties with the Worst Air Quality in New Jersey”, https://gismap.land/rankings/new-jersey/worst-air-quality-counties. Figures from EPA Air Quality Index annual summary (2024).
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