Air quality in Colorado
Air quality index (AQIāŗ) and PM2.5 air pollution in Colorado ā¢ 17:07, Oct 02
Colorado Department of Public Health & Environment (CDPHE)wyndham centerRuss StewartMatt MaccauxAaron BieberCoalition for Clean Air (CCA)S ForestLTom FullerGeorgeLynchUSA National Park ServicejohnCalifornia Air Resources Board (CARB)mckay&zuniSharksWithLazersJUtah State University (USU)Southern Ute TribeJohn SalzmanT HagemanSxSmithairRed Pony FarmLu VenclBeyondAirRabbit Mountain Equestrian CenterTyWShawn VezzaniphshrcoJNByron BoyKen Dantiamorris101Cheryl SwansonJCQHHaley Kline MurphyEPA Office of Atmospheric ProtectionRodeoB BrennerMemorial Regional HealthEmily StonehamJohn MannerAnonymousKatie GirondaKay LewisEd KKitDDenAnonymous contributor
Colorado Department of Public Health & Environment (CDPHE)wyndham centerRuss StewartMatt MaccauxAaron BieberCoalition for Clean Air (CCA)S ForestLTom FullerGeorgeLynchUSA National Park ServicejohnCalifornia Air Resources Board (CARB)mckay&zuniSharksWithLazersJUtah State University (USU)Southern Ute TribeJohn SalzmanT HagemanSxSmithairRed Pony FarmLu VenclBeyondAirRabbit Mountain Equestrian CenterTyWShawn VezzaniphshrcoJNByron BoyKen Dantiamorris101Cheryl SwansonJCQHHaley Kline MurphyEPA Office of Atmospheric ProtectionRodeoB BrennerMemorial Regional HealthEmily StonehamJohn MannerAnonymousKatie GirondaKay LewisEd KKitDDenAnonymous 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?
- Delta54
- Applewood35
- Douglas32
- Jefferson32
- Montezuma County32
- Sterling Ranch32
- Colorado City31
- Grand County30
- Black Hawk29
- Centennial29
- Lamar28
- Ouray28
- Mountain View27
- Estes Park town26
- Kit Carson County26
- Laporte26
- Greeley25
- Aspen24
- Dolores County24
- Estes Park24
- Pueblo24
- Baca County23
- Edgewater23
- Federal Heights23
- Florence23
- Four Square Mile23
- Shaw Heights23
- Sheridan23
- Weld23
- Boulder22
- Denver22
- Lazy Acres22
- Mesa22
- Northglenn22
- Redlands22
- Welby22
- Arvada21
- Evergreen21
- Fort Collins21
- Frederick21
- Golden21
- Palisade21
- Prowers21
- Sugar City21
- Timnath21
- Woodland Park21
- Bennett20
- Derby20
- Grand Junction20
- Lake City20
- Saguache20
- Tabernash20
- Wheat Ridge20
- Brighton19
- Commerce City19
- Eagle County19
- Fruitvale19
- La Plata County19
- Larimer19
- Logan County19
- Loveland19
- Manitou Springs19
- Monument19
- Sherrelwood19
- Chaffee County18
- Colorado Springs18
- Eldorado Springs18
- Glenwood Springs18
- Gunnison County18
- Lakewood18
- Archuleta17
- CaƱon City17
- Cedaredge17
- Cherry Creek17
- Collbran17
- Dakota Ridge17
- Gunbarrel17
- Hot Sulphur Springs17
- La Junta17
- Loma17
- Niwot17
- Olathe17
- Orchard City17
- Parker17
- Pitkin County17
- Salida17
- Silverton17
- Superior17
- Trail Side17
- Twin Lakes, Adams County17
- Walsh17
- Westminster17
- Battlement Mesa16
- Delta County16
- Durango16
- Erie16
- Granby16
- Lafayette16
- Leadville16
- Montrose16
- New Castle16
- Orchard Mesa16
- Parachute16
- Poncha Springs16
- Rangely16
- Red Feather Lakes16
- Rio Blanco16
- Summit16
- Telluride16
- Basalt15
- Cattle Creek15
- Littleton15
- Longmont15
- Lyons15
- Paragon Estates15
- Pueblo West15
- Berthoud14
- Boulder County14
- Buena Vista14
- Castle Rock14
- Eagle14
- Gypsum14
- Hayden14
- Highlands Ranch14
- Inverness14
- Keystone14
- Kremmling14
- Louisville14
- Nathrop14
- Pagosa Springs14
- Platteville14
- Silverthorne14
- Windsor14
- Winter Park14
- Wolcott14
- Aguilar13
- Alamosa13
- Aristocrat Ranchettes13
- Aurora13
- Castle Pines Village13
- Dacono13
- Dolores13
- Eaton13
- Edwards13
- Evans13
- Firestone13
- Fowler13
- Fruita13
- Genesee13
- Gilcrest13
- Green Mountain Falls13
- Gunnison13
- Hudson13
- Keenesburg13
- Kersey13
- La Salle13
- Lochbuie13
- Mancos13
- Mead13
- Milliken13
- Pueblo County13
- Rifle13
- Todd Creek13
- Ault12
- Black Forest12
- Breckenridge12
- Cortez12
- Garfield County12
- Montrose County12
- Routt County12
- Snowmass Village12
- Swink12
- Teller12
- Thornton12
- Vail12
- Wellington12
- Altona11
- Avon11
- Berkley11
- Broomfield11
- Castle Pines11
- Cheraw11
- Crested Butte11
- Dove Creek11
- Greenwood Village11
- Las Animas11
- Minturn11
- Mount Crested Butte11
- Mountain Village11
- Olney Springs11
- Ordway11
- Ouray County11
- Palmer Lake11
- Park County11
- Rocky Ford11
- San Miguel County11
- Severance11
- Silt11
- Springfield11
- Towaoc11
- Valmont11
- Walden11
- Wiley11
- Alamosa County10
- Bayfield10
- Center10
- Cheyenne Wells10
- Eads10
- Fairmount10
- Garfield10
- Leadville North10
- Otero County10
- Watkins10
- Alma9
- Arapahoe County9
- Bethune9
- Beulah Valley9
- Brookside9
- Central9
- Clear Creek County9
- Craig9
- Fairplay9
- Fort Carson9
- Fort Lupton9
- Fountain9
- Fraser9
- Frisco9
- Georgetown9
- Holly Hills9
- Lincoln Park9
- Maysville9
- Moffat County9
- Nederland9
- Penrose9
- Saguache County9
- Security-Widefield9
- Walsenburg9
- West Pleasant View9
- Wray9
- Acres Green8
- Air Force Academy8
- Burlington8
- Byers8
- Cherry Hills Village8
- Cimarron Hills8
- Columbine8
- Columbine Valley8
- Copper Mountain8
- Crestone8
- Cripple Creek8
- Del Norte8
- Dove Valley8
- Ellicott8
- Florissant8
- Gleneagle8
- Ignacio8
- Indian Hills8
- Kiowa8
- Kittredge8
- Lone Tree8
- Louviers8
- Meridian8
- Meridian Village8
- Mineral8
- Monte Vista8
- Perry Park8
- Ponderosa Park8
- San Luis8
- Sedalia8
- Steamboat Springs8
- Stonegate8
- Strasburg8
- The Pinery8
- Ward8
- Woodmoor8
- Akron7
- Alamosa East7
- Brush7
- Clifton7
- Crook7
- El Paso7
- Fort Morgan7
- Grover7
- Holyoke7
- Julesburg7
- Limon7
- Sterling7
- Trinidad7
- Yuma7
- Custer County6
- Elbert County6
- Englewood6
- Idaho Springs6
- Manzanola6
- Oak Creek6
- Roxborough Park6
- Coal Creek, Jefferson County5
- El Jebel5
- Hugo5
- Cascade-Chipita Park4
- Conejos4
- Crowley4
- Lake4
- Costilla County3
- Paonia3
- Upper Bear Creek3
- Westcliffe2
- Stratmoor1
- Aetna Estates0
- Aspen Park0
- Carbondale0
- Dillon0
- Glendale, Arapahoe County0
- Ken Caryl0
- Lakeside0
