Codington County, South Dakota
AQI 33 · Good33
Median AQI
57
90th Percentile
154
Max AQI
179
Days with Data
Ranked #4 of 10 counties in South Dakota (by median AQI, lower is better)
Monthly Median AQI — 2025
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33
Median AQI
57
90th Percentile
154
Max AQI
179
Days with Data
Ranked #4 of 10 counties in South Dakota (by median AQI, lower is better)
Click a bar to view that month's details