Mariposa County, California
AQI 45 · Good45
Median AQI
61
90th Percentile
90
Max AQI
250
Days with Data
Ranked #25 of 46 counties in California (by median AQI, lower is better)
Monthly Median AQI — 2025
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45
Median AQI
61
90th Percentile
90
Max AQI
250
Days with Data
Ranked #25 of 46 counties in California (by median AQI, lower is better)
Click a bar to view that month's details