Air quality in Colorado
Air quality index (AQIāŗ) and PM2.5 air pollution in Colorado ā¢ 04:39, Oct 27
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 StationSouthern Ute TribeUtah State University (USU)John SalzmanT HagemanSxSmithSteamboatairRed Pony FarmLu VenclBeyondAirRabbit Mountain Equestrian CenterTyWShawn VezzaniphshrcoJNKennen WarmackByron BoyKen DantiJohn Baumamorris101Cheryl SwansonHaley Kline MurphyJCQHEPA Office of Atmospheric ProtectionRodeoJohn MannerB BrennerEmily StonehamMemorial Regional HealthAnonymousKatie 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 StationSouthern Ute TribeUtah State University (USU)John SalzmanT HagemanSxSmithSteamboatairRed Pony FarmLu VenclBeyondAirRabbit Mountain Equestrian CenterTyWShawn VezzaniphshrcoJNKennen WarmackByron BoyKen DantiJohn Baumamorris101Cheryl SwansonHaley Kline MurphyJCQHEPA Office of Atmospheric ProtectionRodeoJohn MannerB BrennerEmily StonehamMemorial Regional HealthAnonymousKatie 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?
- Park County59
- Derby54
- Shaw Heights52
- Golden51
- Sheridan51
- Wheat Ridge51
- Genesee50
- Arvada49
- La Plata County49
- Archuleta48
- Applewood47
- Federal Heights46
- Lakewood46
- Montezuma County46
- Northglenn46
- Edgewater45
- Grand County45
- Mountain View44
- Dakota Ridge43
- Commerce City42
- El Paso42
- Cortez41
- Rifle41
- Aspen40
- Eldorado Springs40
- Four Square Mile40
- Paragon Estates40
- Pueblo West40
- Superior40
- Black Hawk39
- Dolores County39
- Sterling Ranch39
- Mesa38
- Twin Lakes, Adams County38
- Evergreen37
- Welby37
- Louisville36
- Manitou Springs36
- Ken Caryl35
- Douglas34
- Prowers34
- Sherrelwood34
- Altona33
- Roxborough Park33
- Boulder32
- Colorado City32
- Lafayette32
- Westminster32
- Denver31
- Platteville31
- Jefferson30
- Larimer29
- Broomfield28
- Niwot28
- Brighton27
- Timnath27
- Lyons26
- Thornton26
- Woodland Park26
- Fort Lupton25
- Longmont25
- Berthoud24
- Gunbarrel24
- Salida24
- Tabernash24
- Trail Side24
- Boulder County23
- Center23
- Delta23
- Logan County23
- Pitkin County23
- Vail23
- Bennett22
- Costilla County22
- Estes Park town22
- Green Mountain Falls22
- Palisade22
- Sugar City22
- Teller22
- Estes Park21
- Highlands Ranch21
- Kit Carson County21
- Lake City21
- Lazy Acres21
- Towaoc21
- Centennial20
- Durango20
- Florence20
- Loveland20
- Parker20
- Breckenridge19
- Buena Vista19
- CaƱon City19
- Cherry Creek19
- Delta County19
- Lakeside19
- Pagosa Springs19
- Pueblo19
- Weld19
- Westcliffe19
- Windsor19
- Aguilar18
- Alamosa County18
- Basalt18
- Erie18
- Poncha Springs18
- Wellington18
- Berkley17
- Cedaredge17
- Englewood17
- Fairmount17
- Frederick17
- Granby17
- Grand Junction17
- Gunnison17
- Hot Sulphur Springs17
- Idaho Springs17
- Leadville17
- Littleton17
- Montrose17
- Orchard Mesa17
- Palmer Lake17
- Pueblo County17
- Red Feather Lakes17
- Redlands17
- Todd Creek17
- Ward17
- Aurora16
- Bayfield16
- Dacono16
- Eagle County16
- Fort Collins16
- Greeley16
- Holly Hills16
- Keystone16
- Moffat County16
- Oak Creek16
- Silverton16
- Snowmass Village16
- Summit16
- Valmont16
- Alamosa15
- Aristocrat Ranchettes15
- Chaffee County15
- Cherry Hills Village15
- Colorado Springs15
- Columbine Valley15
- Firestone15
- Fowler15
- Ignacio15
- Lochbuie15
- Mancos15
- Acres Green14
- Avon14
- Black Forest14
- Burlington14
- Cascade-Chipita Park14
- Columbine14
- Copper Mountain14
- Craig14
- Dove Valley14
- Edwards14
- Indian Hills14
- Inverness14
- Kittredge14
- Lone Tree14
- Mead14
- Meridian14
- Ouray14
- Routt County14
- Saguache14
- Silverthorne14
- Winter Park14
- Arapahoe County13
- Castle Pines13
- Castle Rock13
- Dolores13
- El Jebel13
- Fruita13
- Garfield County13
- Gilcrest13
- Glenwood Springs13
- Hudson13
- La Junta13
- Louviers13
- Meridian Village13
- Milliken13
- Nathrop13
- Olney Springs13
- Sedalia13
- Steamboat Springs13
- Stonegate13
- Telluride13
- Watkins13
- Aspen Park12
- Central12
- Evans12
- Gunnison County12
- Keenesburg12
- La Salle12
- Nederland12
- The Pinery12
- Upper Bear Creek12
- Crowley11
- Elbert County11
- Greenwood Village11
- Monument11
- Perry Park11
- Severance11
- Silt11
- Swink11
- Air Force Academy10
- Ault10
- Castle Pines Village10
- Eaton10
- Fruitvale10
- Gleneagle10
- Kersey10
- Kiowa10
- Laporte10
- Loma10
- Manzanola10
- Paonia10
- Ponderosa Park10
- Strasburg10
- Walsh10
- Woodmoor10
- Byers9
- Clifton9
- Hugo9
- Lake9
- Otero County9
- Alamosa East8
- Battlement Mesa8
- Beulah Valley8
- Brookside8
- Cattle Creek8
- Cheraw8
- Cimarron Hills8
- Collbran8
- Crested Butte8
- Crestone8
- Cripple Creek8
- Custer County8
- Del Norte8
- Dillon8
- Dove Creek8
- Eagle8
- Ellicott8
- Fairplay8
- Florissant8
- Fort Carson8
- Fort Morgan8
- Fountain8
- Fraser8
- Frisco8
- Garfield8
- Georgetown8
- Gypsum8
- Julesburg8
- Kremmling8
- Leadville North8
- Lincoln Park8
- Mineral8
- Minturn8
- Monte Vista8
- Mount Crested Butte8
- Mountain Village8
- New Castle8
- Olathe8
- Orchard City8
- Ouray County8
- Parachute8
- Penrose8
- Rangely8
- Rio Blanco8
- Rocky Ford8
- Saguache County8
- San Luis8
- Security-Widefield8
- Springfield8
- Trinidad8
- Walsenburg8
- Wolcott8
- Brush7
- Grover7
- Las Animas7
- Ordway7
- Wiley7
- Akron6
- Baca County6
- Bethune6
- Cheyenne Wells6
- Clear Creek County6
- Crook6
- Eads6
- Glendale, Arapahoe County6
- Hayden6
- Holyoke6
- Limon6
- Montrose County6
- San Miguel County6
- Sterling6
- Walden6
- Wray6
- Yuma6
- Lamar3
- Stratmoor1
- West Pleasant View1
- Aetna Estates0
- Alma0
- Carbondale0
- Coal Creek, Jefferson County0
- Maysville0
