Counties with the Cleanest Air in North Carolina
The top 25 of 35 North Carolina counties on GIS Map, ranked by lowest median Air Quality Index, counting only counties that host an EPA air monitor.
| # | County | Median AQI |
|---|---|---|
| 1 | Hyde County | 24 |
| 2 | Martin County | 31 |
| 3 | Mitchell County | 31 |
| 4 | Northampton County | 32 |
| 5 | Lenoir County | 34 |
| 6 | Macon County | 34 |
| 7 | Carteret County | 35 |
| 8 | Edgecombe County | 37 |
| 9 | Pitt County | 37 |
| 10 | Avery County | 38 |
| 11 | Caswell County | 38 |
| 12 | Swain County | 38 |
| 13 | New Hanover County | 39 |
| 14 | Person County | 39 |
| 15 | Caldwell County | 40 |
| 16 | Lincoln County | 40 |
| 17 | Alexander County | 41 |
| 18 | Union County | 41 |
| 19 | Catawba County | 42 |
| 20 | Granville County | 42 |
| 21 | Montgomery County | 42 |
| 22 | Buncombe County | 43 |
| 23 | Davidson County | 43 |
| 24 | Johnston County | 43 |
| 25 | Rockingham County | 43 |
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 Cleanest Air in North Carolina”, https://gismap.land/rankings/north-carolina/cleanest-air-counties. Figures from EPA Air Quality Index annual summary (2024).
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