Air quality in Colorado
Air quality index (AQIāŗ) and PM2.5 air pollution in Colorado ā¢ 21:39, Oct 06
wyndham centerRuss StewartMatt MaccauxAaron BieberCoalition for Clean Air (CCA)S ForestLTom FullerGeorgeLynchUSA National Park ServicejohnCalifornia Air Resources Board (CARB)mckay&zuniE StationSharksWithLazersJSouthern Ute TribeUtah State University (USU)John SalzmanT HagemanSxSmithSteamboatRed Pony FarmairLu VenclBeyondAirRabbit Mountain Equestrian CenterTyWShawn VezzaniphshrcoKennen WarmackJNByron BoyKen DantiJohn Baumamorris101Cheryl SwansonHaley Kline MurphyJCQHEPA Office of Atmospheric ProtectionRodeoB BrennerMemorial Regional HealthEmily StonehamJohn MannerAnonymousKatie GirondaKay LewisEd KKitDDenAnonymous contributor
wyndham centerRuss StewartMatt MaccauxAaron BieberCoalition for Clean Air (CCA)S ForestLTom FullerGeorgeLynchUSA National Park ServicejohnCalifornia Air Resources Board (CARB)mckay&zuniE StationSharksWithLazersJSouthern Ute TribeUtah State University (USU)John SalzmanT HagemanSxSmithSteamboatRed Pony FarmairLu VenclBeyondAirRabbit Mountain Equestrian CenterTyWShawn VezzaniphshrcoKennen WarmackJNByron BoyKen DantiJohn Baumamorris101Cheryl SwansonHaley Kline MurphyJCQHEPA 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?
- Commerce City126
- Manitou Springs55
- Grover53
- Logan County52
- Sterling52
- Platteville50
- Brush49
- Jefferson49
- Evergreen48
- Fort Morgan48
- Pueblo West48
- Douglas47
- Greeley47
- Boulder46
- Loveland46
- Sugar City46
- Akron45
- Centennial45
- Denver45
- Grand County45
- La Plata County45
- Timnath45
- Weld45
- Larimer44
- Tabernash44
- Welby44
- Prowers43
- Black Hawk42
- Mesa42
- Archuleta41
- Colorado City40
- Lyons40
- Dolores County39
- Montezuma County39
- Glenwood Springs38
- Rifle38
- Palisade37
- Poncha Springs37
- Buena Vista36
- Nathrop36
- Ouray36
- Conejos35
- Craig35
- Ault34
- Basalt34
- Breckenridge34
- Chaffee County34
- Dakota Ridge34
- Edwards34
- El Jebel34
- Florence34
- Fort Lupton34
- Grand Junction34
- Idaho Springs34
- Ignacio34
- Lake City34
- Lazy Acres34
- Longmont34
- Orchard Mesa34
- Parker34
- Pueblo County34
- Redlands34
- Routt County34
- Salida34
- Snowmass Village34
- Swink34
- Trail Side34
- Twin Lakes, Adams County34
- Berthoud33
- Black Forest33
- Burlington33
- Cedaredge33
- Center33
- Copper Mountain33
- Cortez33
- Crook33
- Delta33
- Eagle County33
- Fowler33
- Genesee33
- Granby33
- Keystone33
- Leadville33
- Montrose33
- Steamboat Springs33
- Teller33
- Westcliffe33
- Alamosa32
- Alamosa County32
- Avon32
- Estes Park town32
- Fruitvale32
- Golden32
- Gunnison32
- Highlands Ranch32
- La Junta32
- Olney Springs32
- Palmer Lake32
- Paragon Estates32
- Park County32
- Pitkin County32
- Aguilar31
- Aspen31
- Aurora31
- Baca County31
- Castle Rock31
- Costilla County31
- Durango31
- Eaton31
- El Paso31
- Eldorado Springs31
- Fort Collins31
- Fruita31
- Garfield County31
- Green Mountain Falls31
- Gunbarrel31
- Gunnison County31
- Hot Sulphur Springs31
- Lafayette31
- Niwot31
- Oak Creek31
- Sterling Ranch31
- Summit31
- Vail31
- Windsor31
- Castle Pines Village30
- Dolores30
- Inverness30
- Lakewood30
- Moffat County30
- Otero County30
- Saguache30
- Silverthorne30
- Superior30
- Trinidad30
- Winter Park30
- Applewood29
- Arapahoe County29
- Bayfield29
- Broomfield29
- Delta County29
- Elbert County29
- Estes Park29
- Hugo29
- Julesburg29
- Pagosa Springs29
- Pueblo29
- Red Feather Lakes29
- Silverton29
- Towaoc29
- Walsh29
- Wellington29
- CaƱon City28
- Erie28
- Federal Heights28
- Upper Bear Creek28
- Boulder County27
- Cascade-Chipita Park27
- Castle Pines27
- Crowley27
- Custer County27
- Four Square Mile27
- Littleton27
- Louisville27
- Ward27
- Derby26
- Kersey26
- Lamar26
- Mancos26
- Severance26
- Shaw Heights26
- Telluride26
- Thornton26
- Colorado Springs25
- Northglenn24
- Silt24
- Bennett23
- Evans23
- La Salle23
- Limon23
- Sheridan23
- Brighton22
- Gilcrest22
- Keenesburg22
- Kit Carson County22
- Milliken22
- Mountain View22
- Paonia22
- Westminster22
- Byers21
- Clifton21
- Hudson21
- Laporte21
- Edgewater20
- Mead20
- Strasburg20
- Altona19
- Aristocrat Ranchettes19
- Berkley19
- Dacono19
- Fairmount19
- Firestone19
- Lochbuie19
- Sherrelwood19
- Todd Creek19
- Valmont19
- Watkins19
- Yuma19
- Acres Green18
- Alamosa East18
- Aspen Park18
- Battlement Mesa18
- Bethune18
- Beulah Valley18
- Brookside18
- Cattle Creek18
- Central18
- Cheraw18
- Cherry Creek18
- Cherry Hills Village18
- Cheyenne Wells18
- Clear Creek County18
- Collbran18
- Columbine18
- Columbine Valley18
- Crested Butte18
- Crestone18
- Del Norte18
- Dillon18
- Dove Creek18
- Dove Valley18
- Eads18
- Eagle18
- Fairplay18
- Fraser18
- Frisco18
- Garfield18
- Georgetown18
- Gypsum18
- Hayden18
- Holyoke18
- Indian Hills18
- Kiowa18
- Kittredge18
- Kremmling18
- Las Animas18
- Leadville North18
- Lincoln Park18
- Loma18
- Lone Tree18
- Maysville18
- Minturn18
- Monte Vista18
- Montrose County18
- Monument18
- Mount Crested Butte18
- Mountain Village18
- Nederland18
- New Castle18
- Olathe18
- Orchard City18
- Ordway18
- Ouray County18
- Parachute18
- Penrose18
- Rangely18
- Rio Blanco18
- Rocky Ford18
- Saguache County18
- San Luis18
- San Miguel County18
- Springfield18
- Walsenburg18
- Wiley18
- Wolcott18
- Wray18
- Air Force Academy17
- Cimarron Hills17
- Cripple Creek17
- Ellicott17
- Englewood17
- Florissant17
- Fort Carson17
- Fountain17
- Gleneagle17
- Louviers17
- Meridian17
- Meridian Village17
- Perry Park17
- Ponderosa Park17
- Security-Widefield17
- Sedalia17
- Stonegate17
- The Pinery17
- Walden17
- Woodmoor17
- Greenwood Village16
- Lake16
- Arvada15
- Wheat Ridge14
- Carbondale11
- Roxborough Park11
- Coal Creek, Jefferson County7
- Frederick6
- Woodland Park6
- Mineral4
- Lakeside3
- Holly Hills2
- Stratmoor2
- Alma1
- West Pleasant View1
- Aetna Estates0
- Glendale, Arapahoe County0
- Ken Caryl0
