Johnson County, Texas
AQI 34 · Good34
Median AQI
50
90th Percentile
101
Max AQI
203
Days with Data
Ranked #12 of 45 counties in Texas (by median AQI, lower is better)
Monthly Median AQI — 2025
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34
Median AQI
50
90th Percentile
101
Max AQI
203
Days with Data
Ranked #12 of 45 counties in Texas (by median AQI, lower is better)
Click a bar to view that month's details