Boone County, Indiana
AQI 38 · Good38
Median AQI
54
90th Percentile
112
Max AQI
260
Days with Data
Ranked #6 of 33 counties in Indiana (by median AQI, lower is better)
Monthly Median AQI — 2025
Click a bar to view that month's details
38
Median AQI
54
90th Percentile
112
Max AQI
260
Days with Data
Ranked #6 of 33 counties in Indiana (by median AQI, lower is better)
Click a bar to view that month's details