Air quality in Colorado
Air quality index (AQIāŗ) and PM2.5 air pollution in Colorado ā¢ 05:51, Oct 23
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)John SalzmanT HagemanSteamboatairRed Pony FarmLu VenclRabbit Mountain Equestrian CenterTyWShawn VezzaniJNKennen WarmackByron BoyKen DantiJohn Baumamorris101Cheryl SwansonHaley Kline MurphyQHJCEPA Office of Atmospheric ProtectionJohn MannerB BrennerEmily StonehamMemorial Regional HealthKay LewisKatie 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)John SalzmanT HagemanSteamboatairRed Pony FarmLu VenclRabbit Mountain Equestrian CenterTyWShawn VezzaniJNKennen WarmackByron BoyKen DantiJohn Baumamorris101Cheryl SwansonHaley Kline MurphyQHJCEPA Office of Atmospheric ProtectionJohn MannerB BrennerEmily StonehamMemorial Regional HealthKay LewisKatie GirondaEd KDDenAnonymous contributor
Live most polluted city ranking
Real-time Colorado most polluted city ranking
Wildfires in Colorado
Real-time information
Active fires
--
Learn more about global air quality
Which is the most polluted city in Colorado?
- Commerce City49
- Center45
- Prowers41
- Silverton41
- Colorado City38
- Greeley37
- Weld37
- Timnath36
- Fort Collins35
- Loveland35
- Frederick33
- Trail Side33
- Welby32
- Derby31
- Federal Heights31
- Larimer31
- Logan County31
- Boulder30
- Denver30
- Douglas30
- Manitou Springs29
- Montezuma County29
- Mountain View29
- Archuleta28
- Evergreen28
- Grand County28
- Jefferson28
- Northglenn28
- Platteville28
- Applewood27
- Sherrelwood27
- Sugar City27
- Westminster27
- Brighton26
- Cortez26
- Edgewater26
- Walsh26
- Berthoud25
- Dolores County25
- Centennial24
- Clifton24
- Julesburg24
- Wheat Ridge24
- Lamar23
- Lazy Acres23
- Pueblo West23
- Baca County22
- Gunnison22
- Gunnison County22
- La Plata County22
- Littleton22
- Fort Lupton21
- Golden21
- Longmont21
- Lyons21
- Tabernash21
- Woodland Park21
- Bennett20
- Burlington20
- Erie20
- Estes Park20
- Mesa20
- Paragon Estates20
- Windsor20
- Four Square Mile19
- Superior19
- Wellington19
- Alma18
- Carbondale18
- Estes Park town18
- Louisville18
- Niwot18
- Sheridan18
- Thornton18
- Altona17
- Broomfield17
- Gunbarrel17
- Lafayette17
- Lake City17
- Pueblo17
- Twin Lakes, Adams County17
- Boulder County16
- El Paso16
- Elbert County16
- Hugo16
- Lakewood16
- Olney Springs16
- Parker16
- Sterling Ranch16
- CaƱon City15
- Eldorado Springs15
- Red Feather Lakes15
- Rifle15
- Cherry Creek14
- Highlands Ranch14
- Hot Sulphur Springs14
- Salida14
- Bethune13
- Castle Pines13
- Cheyenne Wells13
- Dakota Ridge13
- Eads13
- Holyoke13
- La Junta13
- Las Animas13
- Palmer Lake13
- Silt13
- Springfield13
- Wiley13
- Wray13
- Castle Rock12
- Colorado Springs12
- Keystone12
- Swink12
- Upper Bear Creek12
- Yuma12
- Aurora11
- Castle Pines Village11
- Cheraw11
- Idaho Springs11
- Kit Carson County11
- Monument11
- Ordway11
- Otero County11
- Park County11
- Arvada10
- Aspen10
- Chaffee County10
- Pueblo County10
- Redlands10
- Ward10
- Akron9
- Arapahoe County9
- Aristocrat Ranchettes9
- Ault9
- Berkley9
- Black Forest9
- Brush9
- Coal Creek, Jefferson County9
- Crook9
- Dacono9
- Eaton9
- Evans9
- Fairmount9
- Firestone9
- Fort Morgan9
- Gilcrest9
- Granby9
- Green Mountain Falls9
- Grover9
- Hudson9
- Keenesburg9
- Kersey9
- La Salle9
- Laporte9
- Leadville9
- Lochbuie9
- Mead9
- Milliken9
- Nederland9
- Severance9
- Shaw Heights9
- Sterling9
- Todd Creek9
- Valmont9
- West Pleasant View9
- Winter Park9
- Black Hawk8
- Central8
- Genesee8
- Holly Hills8
- Kittredge8
- Rocky Ford8
- Teller8
- Acres Green7
- Aspen Park7
- Byers7
- Cherry Hills Village7
- Cimarron Hills7
- Clear Creek County7
- Columbine7
- Columbine Valley7
- Dillon7
- Dove Valley7
- Durango7
- Ellicott7
- Florence7
- Fountain7
- Fraser7
- Frisco7
- Georgetown7
- Greenwood Village7
- Indian Hills7
- Inverness7
- Kiowa7
- Kremmling7
- Limon7
- Lone Tree7
- Louviers7
- Mancos7
- Meridian7
- Meridian Village7
- Minturn7
- Perry Park7
- Pitkin County7
- Poncha Springs7
- Ponderosa Park7
- Sedalia7
- Silverthorne7
- Stonegate7
- Strasburg7
- Summit7
- The Pinery7
- Walsenburg7
- Watkins7
- Woodmoor7
- Air Force Academy6
- Alamosa East6
- Battlement Mesa6
- Bayfield6
- Beulah Valley6
- Breckenridge6
- Brookside6
- Buena Vista6
- Cascade-Chipita Park6
- Cattle Creek6
- Collbran6
- Crested Butte6
- Crestone6
- Cripple Creek6
- Crowley6
- Custer County6
- Del Norte6
- Delta6
- Dove Creek6
- Eagle6
- Edwards6
- El Jebel6
- Fairplay6
- Florissant6
- Fort Carson6
- Fruitvale6
- Garfield6
- Gleneagle6
- Grand Junction6
- Gypsum6
- Hayden6
- Leadville North6
- Lincoln Park6
- Loma6
- Manzanola6
- Maysville6
- Monte Vista6
- Montrose County6
- Mount Crested Butte6
- Mountain Village6
- New Castle6
- Olathe6
- Orchard City6
- Ouray County6
- Paonia6
- Parachute6
- Penrose6
- Rangely6
- Rio Blanco6
- Routt County6
- Saguache County6
- San Luis6
- San Miguel County6
- Security-Widefield6
- Walden6
- Wolcott6
- Eagle County5
- Palisade5
- Steamboat Springs5
- Vail5
- Aguilar4
- Alamosa4
- Avon4
- Glenwood Springs4
- Lake4
- Oak Creek4
- Pagosa Springs4
- Snowmass Village4
- Costilla County3
- Craig3
- Fowler3
- Garfield County3
- Montrose3
- Ouray3
- Telluride3
- Basalt2
- Cedaredge2
- Copper Mountain2
- Delta County2
- Fruita2
- Saguache2
- Trinidad2
- Conejos1
- Dolores1
- Moffat County1
- Nathrop1
- Orchard Mesa1
- Stratmoor1
- Towaoc1
- Westcliffe1
- Aetna Estates0
- Alamosa County0
- Englewood0
- Glendale, Arapahoe County0
- Ignacio0
- Ken Caryl0
- Lakeside0
- Mineral0
- Roxborough Park0
