Iowa Air Quality

Real-time AQI data and air quality trends for 1,024 cities across Iowa.

Statewide Air Quality Overview

43
Average AQI
2679
Good Air Days
1274
Moderate Days
Unhealthy Days
166
Highest AQI

Based on 2025 EPA data

Cleanest Air in Iowa

1. ShueyvilleMedian AQI: 36
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2. FrytownMedian AQI: 36
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3. HillsMedian AQI: 36
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4. University HeightsMedian AQI: 36
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5. OxfordMedian AQI: 36
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Most Polluted in Iowa

1. MindenMedian AQI: 41
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2. WalnutMedian AQI: 41
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3. SmithlandMedian AQI: 39
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4. BronsonMedian AQI: 39
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5. WoodbineMedian AQI: 39
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Learn About Air Quality

What Is the AQI?
Understand how the Air Quality Index is calculated and what each level means for your health.
Pollutant Guide
Learn about PM2.5, ozone, and other pollutants that affect air quality across Iowa.
National Rankings
Compare Iowa cities to the rest of the US by air quality grade and median AQI.

All Cities in Iowa

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