Air quality in Colorado
Air quality index (AQIāŗ) and PM2.5 air pollution in Colorado ā¢ 11:13, Oct 25
Colorado Department of Public Health & Environment (CDPHE)wyndham centerRuss StewartMatt MaccauxAaron BieberS ForestDilan WeerasingheLTom FullerGeorgeLynchCoalition for Clean Air (CCA)USA National Park ServicejohnCalifornia Air Resources Board (CARB)mckay&zuniSharksWithLazersE StationJSouthern Ute TribeUtah State University (USU)John SalzmanT HagemanSxSmithSteamboatairRed Pony FarmLu VenclBeyondAirRabbit Mountain Equestrian CenterTyWShawn VezzaniJNphshrcoKennen WarmackByron BoyKen DantiJohn Baumamorris101Cheryl SwansonHaley Kline MurphyJCQHEPA Office of Atmospheric ProtectionRodeoJohn MannerB BrennerEmily StonehamMemorial Regional HealthAnonymousKay LewisKatie GirondaEd KDDenAnonymous contributor
Colorado Department of Public Health & Environment (CDPHE)wyndham centerRuss StewartMatt MaccauxAaron BieberS ForestDilan WeerasingheLTom FullerGeorgeLynchCoalition for Clean Air (CCA)USA National Park ServicejohnCalifornia Air Resources Board (CARB)mckay&zuniSharksWithLazersE StationJSouthern Ute TribeUtah State University (USU)John SalzmanT HagemanSxSmithSteamboatairRed Pony FarmLu VenclBeyondAirRabbit Mountain Equestrian CenterTyWShawn VezzaniJNphshrcoKennen WarmackByron BoyKen DantiJohn Baumamorris101Cheryl SwansonHaley Kline MurphyJCQHEPA Office of Atmospheric ProtectionRodeoJohn MannerB BrennerEmily StonehamMemorial Regional HealthAnonymousKay LewisKatie GirondaEd KDDenAnonymous contributor
Live most polluted city ranking
Real-time Colorado most polluted city ranking
Wildfires in Colorado
Real-time information
Active fires
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Learn more about global air quality
Which is the most polluted city in Colorado?
- Winter Park73
- Lazy Acres62
- Indian Hills58
- Ken Caryl54
- Dakota Ridge52
- Golden52
- Stratmoor48
- Sheridan45
- Colorado Springs44
- Edgewater44
- Four Square Mile42
- Derby41
- Lakewood40
- Sterling Ranch40
- Applewood39
- Highlands Ranch39
- Mountain View39
- West Pleasant View39
- El Paso36
- Mesa36
- Montezuma County35
- Northglenn35
- Shaw Heights35
- Wheat Ridge35
- Cherry Creek34
- Littleton34
- Prowers34
- Centennial33
- Monument33
- Roxborough Park33
- Welby33
- Dolores County32
- Federal Heights32
- Moffat County32
- Arvada31
- Estes Park town31
- Genesee30
- Altona29
- Buena Vista29
- CaƱon City29
- Denver29
- Red Feather Lakes29
- Silverton29
- Westminster29
- Colorado City28
- Douglas28
- Frederick28
- Greenwood Village28
- Archuleta27
- Arapahoe County26
- Bennett26
- Englewood26
- Kit Carson County26
- Twin Lakes, Adams County26
- Commerce City25
- La Plata County25
- Carbondale24
- Clifton24
- Florence24
- Gunnison County24
- Parker23
- Broomfield22
- Castle Rock22
- Craig22
- Platteville22
- Castle Pines Village21
- Estes Park21
- Greeley21
- Green Mountain Falls21
- Manitou Springs21
- Palmer Lake21
- Salida21
- Silt21
- Brighton20
- Julesburg20
- Black Hawk19
- Delta19
- Eldorado Springs19
- Grand County19
- Jefferson19
- Larimer19
- Loveland19
- Timnath19
- Trail Side19
- Aurora18
- Boulder18
- Cortez18
- Fort Collins18
- Lakeside18
- Lyons18
- Sherrelwood18
- Snowmass Village18
- Woodland Park18
- Boulder County17
- Hot Sulphur Springs17
- Niwot17
- Paragon Estates17
- Pueblo West17
- Superior17
- Rifle16
- Lafayette15
- Pueblo15
- Fairmount14
- Longmont14
- Mead14
- Nederland14
- Poncha Springs14
- Redlands14
- Valmont14
- Weld14
- Windsor14
- Aspen13
- Berkley13
- Berthoud13
- Central13
- Chaffee County13
- Costilla County13
- Dacono13
- Elbert County13
- Firestone13
- Gunbarrel13
- Keystone13
- Black Forest12
- Cherry Hills Village12
- Columbine Valley12
- Holly Hills12
- Kittredge12
- Laporte12
- Louisville12
- Mancos12
- Park County12
- Todd Creek12
- Wellington12
- Acres Green11
- Aristocrat Ranchettes11
- Columbine11
- Dove Valley11
- Gilcrest11
- Inverness11
- Lake City11
- Lochbuie11
- Logan County11
- Lone Tree11
- Louviers11
- Meridian11
- Meridian Village11
- Milliken11
- Pueblo County11
- Sedalia11
- Stonegate11
- Evans10
- Hudson10
- Ignacio10
- La Salle10
- Severance10
- The Pinery10
- Clear Creek County9
- Dolores9
- Eaton9
- Erie9
- Fraser9
- Georgetown9
- Granby9
- Keenesburg9
- Perry Park9
- Ponderosa Park9
- Tabernash9
- Watkins9
- Woodmoor9
- Air Force Academy8
- Ault8
- Cascade-Chipita Park8
- Cimarron Hills8
- Cripple Creek8
- Crowley8
- Ellicott8
- Florissant8
- Fort Carson8
- Fort Lupton8
- Fountain8
- Glendale, Arapahoe County8
- Gleneagle8
- Holyoke8
- Kiowa8
- Lamar8
- Penrose8
- Security-Widefield8
- Walden8
- Beulah Valley7
- Breckenridge7
- Brookside7
- Castle Pines7
- Crook7
- Durango7
- Glenwood Springs7
- Kersey7
- Leadville7
- Lincoln Park7
- Pagosa Springs7
- Strasburg7
- Summit7
- Akron6
- Alamosa East6
- Baca County6
- Battlement Mesa6
- Bethune6
- Brush6
- Byers6
- Cattle Creek6
- Center6
- Cheraw6
- Cheyenne Wells6
- Collbran6
- Conejos6
- Crested Butte6
- Crestone6
- Custer County6
- Del Norte6
- Dillon6
- Dove Creek6
- Eads6
- Eagle6
- Edwards6
- El Jebel6
- Fairplay6
- Fort Morgan6
- Frisco6
- Fruitvale6
- Garfield6
- Grand Junction6
- Grover6
- Gunnison6
- Gypsum6
- Hayden6
- Kremmling6
- Las Animas6
- Leadville North6
- Limon6
- Loma6
- Maysville6
- Mineral6
- Minturn6
- Monte Vista6
- Montrose6
- Montrose County6
- Mount Crested Butte6
- Mountain Village6
- New Castle6
- Olathe6
- Orchard City6
- Ordway6
- Ouray6
- Ouray County6
- Parachute6
- Pitkin County6
- Rangely6
- Rio Blanco6
- Routt County6
- Saguache County6
- San Luis6
- San Miguel County6
- Silverthorne6
- Springfield6
- Steamboat Springs6
- Sterling6
- Teller6
- Trinidad6
- Walsenburg6
- Wiley6
- Wolcott6
- Wray6
- Yuma6
- Alamosa5
- Fruita5
- Thornton5
- Alma4
- Delta County4
- Garfield County4
- Manzanola4
- Sugar City4
- Swink4
- Telluride4
- Towaoc4
- Vail4
- Ward4
- Avon3
- Eagle County3
- Fowler3
- Idaho Springs3
- Aguilar2
- Basalt2
- Bayfield2
- Burlington2
- Cedaredge2
- Evergreen2
- Hugo2
- Olney Springs2
- Orchard Mesa2
- Otero County2
- Palisade2
- Rocky Ford2
- La Junta1
- Lake1
- Nathrop1
- Oak Creek1
- Paonia1
- Saguache1
- Walsh1
- Aetna Estates0
- Alamosa County0
- Aspen Park0
- Coal Creek, Jefferson County0
- Copper Mountain0
- Upper Bear Creek0
- Westcliffe0
