Air quality in Colorado
Air quality index (AQIāŗ) and PM2.5 air pollution in Colorado ā¢ 21:26, Oct 19
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)T HagemanSteamboatSxSmithairRed Pony FarmLu VenclBeyondAirRabbit Mountain Equestrian CenterTyWShawn VezzaniphshrcoJNKennen WarmackByron BoyKen DantiJohn Baumamorris101Cheryl SwansonHaley Kline MurphyJCQHEPA Office of Atmospheric ProtectionRodeoJohn MannerB BrennerAnonymousEmily StonehamMemorial Regional HealthKatie 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)T HagemanSteamboatSxSmithairRed Pony FarmLu VenclBeyondAirRabbit Mountain Equestrian CenterTyWShawn VezzaniphshrcoJNKennen WarmackByron BoyKen DantiJohn Baumamorris101Cheryl SwansonHaley Kline MurphyJCQHEPA Office of Atmospheric ProtectionRodeoJohn MannerB BrennerAnonymousEmily StonehamMemorial Regional HealthKatie 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?
- Shaw Heights59
- Fort Collins58
- Kit Carson County58
- Sheridan57
- Sterling Ranch56
- Genesee55
- Golden55
- Applewood54
- Dakota Ridge54
- Four Square Mile54
- Lakewood54
- Northglenn54
- Edgewater53
- Highlands Ranch53
- Roxborough Park53
- Wheat Ridge53
- Arvada52
- Longmont52
- Mountain View52
- Paragon Estates52
- Twin Lakes, Adams County52
- Boulder51
- Derby51
- Greeley51
- Manitou Springs51
- Platteville51
- Timnath51
- Superior50
- Westminster50
- Castle Rock49
- Eldorado Springs49
- Weld49
- Berthoud48
- El Paso48
- Jefferson48
- Lafayette48
- Larimer48
- Loveland48
- Niwot48
- Welby48
- Black Hawk47
- Castle Pines Village47
- Cherry Creek47
- Denver47
- Idaho Springs47
- Evergreen46
- La Plata County46
- Grand County45
- Pueblo West45
- Windsor45
- Archuleta44
- Broomfield44
- Laporte44
- Commerce City43
- Greenwood Village43
- Gunbarrel43
- Ken Caryl43
- Louisville42
- Sherrelwood42
- Altona41
- Lyons40
- Montezuma County40
- Centennial39
- Englewood39
- Frederick39
- Littleton39
- Boulder County38
- Sugar City38
- Cortez37
- Douglas37
- Fort Lupton37
- Gunnison County36
- Arapahoe County35
- Colorado City34
- Lazy Acres34
- Prowers34
- Rifle34
- Trail Side34
- Castle Pines33
- Aspen32
- Dolores County32
- Mesa32
- Parker32
- Thornton30
- Wellington30
- Costilla County29
- La Junta29
- Logan County29
- Ward29
- Black Forest28
- Estes Park town28
- Fowler28
- Inverness28
- Palmer Lake28
- Red Feather Lakes28
- Upper Bear Creek28
- Erie27
- Florence27
- Olney Springs27
- Tabernash27
- Burlington26
- Center26
- Estes Park26
- Redlands26
- Swink26
- Teller26
- Colorado Springs25
- Otero County25
- Palisade25
- Aurora24
- Elbert County24
- Julesburg24
- Park County24
- Poncha Springs24
- Salida24
- Trinidad24
- Aguilar23
- Brighton23
- Durango23
- Green Mountain Falls23
- Hugo23
- Lakeside23
- Manzanola23
- Pueblo County23
- Rocky Ford23
- Saguache23
- Walsh23
- Westcliffe23
- Alamosa County22
- Aspen Park22
- Bennett22
- Buena Vista22
- CaƱon City22
- Cascade-Chipita Park22
- Conejos22
- Crowley22
- Granby22
- Grand Junction22
- Lake22
- Orchard Mesa22
- Pitkin County22
- Winter Park22
- Cedaredge21
- Chaffee County21
- Ignacio21
- Lake City21
- Pueblo21
- Bayfield20
- Craig20
- Gunnison20
- Nathrop20
- Routt County20
- Silverton20
- Baca County19
- El Jebel19
- Hot Sulphur Springs19
- Lamar19
- Moffat County19
- Frisco18
- Silverthorne18
- Steamboat Springs18
- Alamosa17
- Aristocrat Ranchettes17
- Basalt17
- Delta17
- Dolores17
- Fruita17
- Glenwood Springs17
- Hudson17
- Keenesburg17
- Lochbuie17
- Mancos17
- Towaoc17
- Watkins17
- Berkley16
- Byers16
- Dacono16
- Delta County16
- Dove Valley16
- Federal Heights16
- Holly Hills16
- Pagosa Springs16
- Stonegate16
- Strasburg16
- Todd Creek16
- Acres Green15
- Ault15
- Bethune15
- Cherry Hills Village15
- Cheyenne Wells15
- Eaton15
- Evans15
- Firestone15
- Gilcrest15
- Kersey15
- Kiowa15
- La Salle15
- Lone Tree15
- Mead15
- Meridian15
- Meridian Village15
- Milliken15
- Ponderosa Park15
- Severance15
- Snowmass Village15
- Springfield15
- Telluride15
- The Pinery15
- Wiley15
- Wray15
- Columbine14
- Columbine Valley14
- Eads14
- Glendale, Arapahoe County14
- Las Animas14
- Montrose14
- Monument14
- Summit14
- Breckenridge13
- Cheraw13
- Edwards13
- Fairmount13
- Keystone13
- Leadville13
- Louviers13
- Ordway13
- Sedalia13
- Valmont13
- Akron12
- Brush12
- Clifton12
- Crook12
- Fort Morgan12
- Grover12
- Holyoke12
- Ouray12
- Sterling12
- Yuma12
- Eagle County11
- Ellicott11
- Garfield County11
- Oak Creek11
- Silt11
- Woodmoor11
- Air Force Academy10
- Central10
- Cimarron Hills10
- Fort Carson10
- Fountain10
- Gleneagle10
- Indian Hills10
- Kittredge10
- Limon10
- Loma10
- Nederland10
- Perry Park10
- Rangely10
- Security-Widefield10
- Avon9
- Dove Creek9
- San Miguel County9
- Vail9
- Alamosa East8
- Battlement Mesa8
- Beulah Valley8
- Brookside8
- Clear Creek County8
- Collbran8
- Crestone8
- Cripple Creek8
- Custer County8
- Del Norte8
- Dillon8
- Fairplay8
- Florissant8
- Fraser8
- Fruitvale8
- Garfield8
- Georgetown8
- Hayden8
- Kremmling8
- Lincoln Park8
- Mineral8
- Monte Vista8
- Montrose County8
- Mountain Village8
- New Castle8
- Olathe8
- Orchard City8
- Ouray County8
- Parachute8
- Penrose8
- Rio Blanco8
- Saguache County8
- San Luis8
- Walden8
- Walsenburg8
- Cattle Creek7
- Crested Butte7
- Eagle7
- Gypsum7
- Leadville North7
- Minturn7
- Mount Crested Butte7
- Wolcott7
- Woodland Park6
- Paonia4
- Alma2
- Copper Mountain1
- Maysville1
- West Pleasant View1
- Aetna Estates0
- Carbondale0
- Coal Creek, Jefferson County0
- Stratmoor0
