Iowa Air Quality by City
Iowa has 7 cities with an air-quality page, from Des Moines (570,091 people) on down. Each page leads with the live AQI, the main pollutant driving it, and a go/no-go for outdoor exercise on the EPA scale.
Cities in Iowa
| City | Typical AQI (county median, 2025) | Population |
|---|---|---|
| Des Moines | 44 Good | 570,091 |
| Davenport | 46 Good | 281,044 |
| Cedar Rapids | 44 Good | 195,323 |
| Iowa City | 37 Good | 133,565 |
| Sioux City | 39 Good | 112,803 |
| Denison | No EPA monitor | 8,260 |
| Crescent | 37 Good | 549 |
Our dataset lists 1,024 places in Iowa; the 7 above have a page. For a smaller town, the nearest city above is the closest match.