Air quality in Colorado
Air quality index (AQIāŗ) and PM2.5 air pollution in Colorado ā¢ 14:26, Nov 04
Colorado Department of Public Health & Environment (CDPHE)wyndham centerRuss StewartMatt MaccauxAaron BieberS ForestDilan WeerasingheLTom FullerCoalition for Clean Air (CCA)GeorgeLynchUSA National Park ServicejohnCalifornia Air Resources Board (CARB)mckay&zuniSharksWithLazersJSouthern Ute TribeUtah State University (USU)John SalzmanT HagemanSxSmithairSteamboatRed Pony FarmLu VenclBeyondAirRabbit Mountain Equestrian CenterTyWShawn VezzaniphshrcoJNKennen WarmackByron BoyKen DantiJohn Baumamorris101Cheryl SwansonHaley Kline MurphyJCQHEPA Office of Atmospheric ProtectionRodeoJohn MannerB BrennerMemorial Regional HealthEmily StonehamAnonymousKatie GirondaKay LewisEd KDDenAnonymous contributor
Colorado Department of Public Health & Environment (CDPHE)wyndham centerRuss StewartMatt MaccauxAaron BieberS ForestDilan WeerasingheLTom FullerCoalition for Clean Air (CCA)GeorgeLynchUSA National Park ServicejohnCalifornia Air Resources Board (CARB)mckay&zuniSharksWithLazersJSouthern Ute TribeUtah State University (USU)John SalzmanT HagemanSxSmithairSteamboatRed Pony FarmLu VenclBeyondAirRabbit Mountain Equestrian CenterTyWShawn VezzaniphshrcoJNKennen WarmackByron BoyKen DantiJohn Baumamorris101Cheryl SwansonHaley Kline MurphyJCQHEPA Office of Atmospheric ProtectionRodeoJohn MannerB BrennerMemorial Regional HealthEmily StonehamAnonymousKatie GirondaKay LewisEd 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?
- Federal Heights82
- Hot Sulphur Springs60
- Westcliffe56
- Gold Hill53
- Winter Park53
- Center50
- Twin Lakes, Adams County46
- Commerce City45
- Four Square Mile44
- Welby44
- Edgewater43
- Gunnison42
- Estes Park town41
- Delta39
- Englewood38
- Northglenn35
- Buena Vista33
- Aetna Estates32
- Denver32
- Mountain View32
- Watkins32
- Dolores County31
- Sherrelwood31
- Westminster31
- Bennett30
- Black Hawk30
- Grand County30
- Colorado City29
- Gunnison County29
- Lochbuie29
- Sheridan29
- Strasburg29
- Wheat Ridge29
- Byers28
- Cherry Creek28
- Dove Valley28
- Estes Park28
- Holly Hills28
- Inverness28
- Jefferson28
- Meridian Village28
- Red Feather Lakes28
- Stonegate28
- Todd Creek28
- Acres Green27
- Aristocrat Ranchettes27
- Centennial27
- Cherry Hills Village27
- Derby27
- Greenwood Village27
- Hudson27
- Keenesburg27
- Kiowa27
- Lone Tree27
- Loveland27
- Manitou Springs27
- Meridian27
- Ponderosa Park27
- Shaw Heights27
- The Pinery27
- Applewood26
- Berkley26
- Dacono26
- Larimer26
- Montezuma County26
- Columbine Valley25
- Lakeside25
- Columbine24
- Green Mountain Falls24
- Pueblo West24
- Sedalia24
- Clifton23
- Cortez23
- Firestone23
- Frederick23
- Gilcrest23
- Grand Junction23
- Louviers23
- Monument23
- Castle Rock22
- La Salle22
- Parker22
- Rifle22
- Brighton21
- Evans21
- Kit Carson County21
- Milliken21
- Silt21
- Trail Side21
- Woodland Park21
- CaƱon City20
- Kersey20
- Mead20
- Perry Park20
- El Paso19
- Fairmount19
- Fort Collins19
- Greeley19
- Pueblo19
- Rocky Ford19
- Woodmoor19
- Arvada18
- Aurora18
- Boulder18
- Gleneagle18
- Logan County18
- Niwot18
- Timnath18
- Valmont18
- Windsor18
- Air Force Academy17
- Aspen17
- Cimarron Hills17
- Douglas17
- Eaton17
- Ellicott17
- Highlands Ranch17
- Indian Hills17
- Mancos17
- Thornton17
- Weld17
- Broomfield16
- Dakota Ridge16
- Florence16
- Fruitvale16
- Hayden16
- Platteville16
- Severance16
- Tabernash16
- Alamosa15
- Ault15
- Evergreen15
- Kittredge15
- Security-Widefield15
- Battlement Mesa14
- Fountain14
- Golden14
- Julesburg14
- Lazy Acres14
- Loma14
- Parachute14
- Rangely14
- Rio Blanco14
- Altona13
- Black Forest13
- Collbran13
- Elbert County13
- Fort Carson13
- Lakewood13
- Laporte13
- Mesa13
- New Castle13
- Redlands13
- Superior13
- Wellington13
- Eldorado Springs12
- La Plata County12
- Lafayette12
- Lake City12
- Limon12
- Louisville12
- Silverton12
- Sterling Ranch12
- Teller12
- Arapahoe County11
- Archuleta11
- Burlington11
- Castle Pines Village11
- Colorado Springs11
- Durango11
- Eagle County11
- Erie11
- Florissant11
- Fort Lupton11
- Fort Morgan11
- Glendale, Arapahoe County11
- Gunbarrel11
- Keystone11
- Lamar11
- Orchard City11
- Palmer Lake11
- Paragon Estates11
- Poncha Springs11
- Salida11
- Ward11
- Pueblo County10
- Summit10
- Basalt9
- Berthoud9
- Boulder County9
- Brush9
- Cattle Creek9
- Cedaredge9
- Central9
- Costilla County9
- Craig9
- Cripple Creek9
- Del Norte9
- Delta County9
- Dove Creek9
- Gypsum9
- Leadville9
- Littleton9
- Longmont9
- Montrose County9
- Mountain Village9
- Nederland9
- Olathe9
- Orchard Mesa9
- Ouray County9
- Park County9
- Penrose9
- Prowers9
- Saguache9
- Walden9
- Brookside8
- Carbondale8
- Chaffee County8
- Grover8
- Kremmling8
- Monte Vista8
- Palisade8
- Sterling8
- Akron7
- Alamosa East7
- Bayfield7
- Beulah Valley7
- Cheraw7
- Clear Creek County7
- Crested Butte7
- Crestone7
- Custer County7
- Dillon7
- Dolores7
- Eagle7
- El Jebel7
- Fairplay7
- Fraser7
- Frisco7
- Fruita7
- Garfield7
- Genesee7
- Georgetown7
- Ignacio7
- Leadville North7
- Lincoln Park7
- Lyons7
- Maysville7
- Minturn7
- Moffat County7
- Mount Crested Butte7
- Olney Springs7
- Ordway7
- Pagosa Springs7
- Pitkin County7
- Saguache County7
- San Luis7
- San Miguel County7
- Wolcott7
- Avon6
- Bethune6
- Breckenridge6
- Castle Pines6
- Cheyenne Wells6
- Crook6
- Eads6
- Edwards6
- Holyoke6
- Las Animas6
- Montrose6
- Nathrop6
- Otero County6
- Roxborough Park6
- Snowmass Village6
- Springfield6
- Steamboat Springs6
- Sugar City6
- Swink6
- Towaoc6
- Upper Bear Creek6
- Walsenburg6
- Wiley6
- Wray6
- Yuma6
- Copper Mountain5
- Granby5
- La Junta5
- Manzanola5
- Alamosa County4
- Glenwood Springs4
- Hugo4
- Idaho Springs4
- Mineral4
- Oak Creek4
- Routt County4
- Vail4
- West Pleasant View4
- Aguilar3
- Conejos3
- Fowler3
- Telluride3
- Crowley2
- Garfield County2
- Stratmoor2
- Walsh2
- Coal Creek, Jefferson County1
- Paonia1
- Trinidad1
- Alma0
- Aspen Park0
- Baca County0
- Cascade-Chipita Park0
- Ken Caryl0
- Lake0
- Ouray0
- Silverthorne0
