Cities with the Cleanest Air in South Dakota.
Cities in South Dakota with the most good AQI days per year.
9 cities ranked · See the national list
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| # | City | Good AQI Days |
|---|---|---|
| 1 | Pierre | 333 days/yr |
| 2 | Vermillion | 308 days/yr |
| 3 | Aberdeen | 301 days/yr |
| 4 | Sioux Falls | 294 days/yr |
| 5 | Brandon | 294 days/yr |
| 6 | Watertown | 283 days/yr |
| 7 | Rapid City | 282 days/yr |
| 8 | Box Elder | 282 days/yr |
| 9 | Brookings | 214 days/yr |
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