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Air quality in Colorado
Air quality index (AQI) and PM2.5 air pollution in Colorado
Data provided by
85 sources
LIVE AQI CITY RANKING
Real-time Colorado
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Louisville | 0 |
| 2 | Lochbuie | 8 |
| 3 | Elizabeth | 9 |
| 4 | Windsor | 9 |
| 5 | Steamboat Springs | 13 |
| 6 | Salida | 15 |
| 7 | Loma | 16 |
| 8 | Highlands Ranch | 17 |
| 9 | Fort Carson | 18 |
| 10 | Manitou Springs | 18 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
Good
Moderate
Unhealthy for sensitive groups
Unhealthy
Very unhealthy
Hazardous
How to best protect from air pollution?
Community Contributors
4 Contributors
Which is the most polluted city in Colorado?
- Parachute177
- Battlement Mesa177
- Rifle173
- Leadville159
- Silt157
- Gothic153
- Snowmass Village141
- New Castle130
- Basalt127
- Aspen121
- Carbondale120
- Glenwood Springs120
- El Jebel112
- Welby105
- Avon100
- Crested Butte93
- Eagle91
- Leadville North89
- Clifton82
- Edwards80
- Telluride80
- Gypsum79
- Palisade75
- Commerce City74
- Mountain Village72
- Denver72
- Paonia68
- Fairplay68
- Fruitvale65
- Silverton61
- Ignacio61
- Frisco60
- Bayfield60
- Silverthorne58
- Pagosa Springs58
- Gunnison57
- Olathe55
- Meeker55
- Montrose55
- Orchard City55
- Littleton54
- Breckenridge53
- Greeley53
- Walsenburg53
- Buena Vista53
- Creede52
- Grand Junction52
- Florence51
- Delta51
- Kremmling51
- Minturn51
- Pueblo West51
- Vail51
- Colorado City51
- Penrose51
- Ouray51
- Durango51
- Colorado Springs50
- Rocky Ford46
- La Junta46
- Hayden46
- Westcliffe46
- Lincoln Park46
- Pueblo46
- Orchard Mesa45
- Ordway42
- Wellington42
- Fowler42
- Saguache42
- San Luis42
- Loveland42
- Fraser42
- Trinidad42
- Campion42
- Craig42
- Johnstown42
- Canon City42
- Keystone42
- Hot Sulphur Springs42
- Ellicott38
- Ault38
- Alamosa38
- Eaton38
- Berthoud38
- Mead38
- Granby38
- Mancos38
- Gunbarrel38
- Las Animas38
- Lyons38
- Alamosa East38
- Erie35
- La Salle34
- Monte Vista34
- Evans34
- Eads34
- Conejos34
- Firestone34
- Limon34
- Dacono34
- Center34
- Frederick34
- Lamar34
- Kersey34
- Severance34
- Lafayette34
- Del Norte34
- Cheyenne Wells34
- Springfield34
- Hugo34
- Rangely33
- Fort Collins33
- Edgewater31
- Fountain29
- Black Forest29
- Burlington29
- Superior29
- Mesa Verde National Park29
- Milliken29
- Gilcrest29
- Nederland29
- Kiowa29
- Lake City29
- Georgetown29
- Byers29
- Bennett29
- Stratmoor29
- Bedrock29
- Strasburg29
- Platteville29
- Hudson29
- Keenesburg29
- Cortez29
- Security-Widefield29
- Redlands28
- Cedaredge28
- Broomfield25
- Twin Lakes25
- Brighton25
- Niwot25
- Towaoc25
- Todd Creek25
- Thornton25
- Shaw Heights25
- Coal Creek25
- Holyoke25
- Berkley25
- Derby25
- Akron25
- Kittredge25
- Fort Morgan25
- Central City25
- Fort Lupton25
- Sterling25
- Dove Creek25
- Julesburg25
- Cripple Creek25
- Federal Heights25
- Upper Bear Creek25
- Westminster25
- Arvada25
- Sherrelwood25
- Idaho Springs25
- Aristocrat Ranchettes25
- Brush25
- Northglenn25
- Estes Park24
- Florissant23
- Walden23
- Woodland Park23
- Laporte23
- Glendale22
- Cascade-Chipita Park21
- Conifer21
- Longmont21
- Gleneagle21
- Wray21
- Golden21
- Cherry Hills Village21
- Wheat Ridge21
- Cimarron Hills21
- Boulder21
- Greenwood Village21
- Yuma21
- Watkins21
- Applewood21
- Englewood21
- Lakewood21
- Monument21
- Southglenn21
- Morrison21
- West Pleasant View21
- Holly Hills21
- Columbine21
- Columbine Valley21
- Evergreen21
- Sheridan21
- Air Force Academy21
- Genesee21
- Woodmoor21
- Indian Hills21
- Fruita20
- U.S. Air Force Academy18
- Ponderosa Park18
- Manitou Springs18
- Roxborough Park18
- Fort Carson18
- Parker17
- Palmer Lake17
- Meridian17
- Acres Green17
- The Pinery17
- Carriage Club17
- Lone Tree17
- Castle Pines17
- Castle Pines North17
- Ken Caryl17
- Aurora17
- Inverness17
- Highlands Ranch17
- Perry Park17
- Stonegate17
- Castle Rock17
- Dove Valley17
- Cherry Creek17
- Centennial17
- Castlewood17
- Loma16
- Salida15
- Steamboat Springs13
- Elizabeth9
- Windsor9
- Lochbuie8
- Louisville0
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