Louisiana Air Quality by City
Louisiana has 9 cities with an air-quality page, from New Orleans (928,503 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 Louisiana
| City | Typical AQI (county median, 2025) | Population |
|---|---|---|
| New Orleans | 42 Good | 928,503 |
| Baton Rouge | 51 Moderate | 654,357 |
| Shreveport | 38 Good | 276,074 |
| Lafayette | 45 Good | 242,063 |
| Lake Charles | 47 Good | 153,662 |
| Metairie | 47 Good | 139,729 |
| Houma | 42 Good | 139,352 |
| Pierre Part | No EPA monitor | 2,308 |
| Echo | 37 Good | 552 |
Our dataset lists 489 places in Louisiana; the 9 above have a page. For a smaller town, the nearest city above is the closest match.