Air quality in Colorado
Air quality index (AQI⁺) and PM2.5 air pollution in Colorado • 19:07, Nov 06
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&zuniSharksWithLazersE StationJSouthern Ute TribeUtah State University (USU)John SalzmanT HagemanSxSmithairSteamboatRed Pony FarmLu VenclBeyondAirRabbit Mountain Equestrian CenterTyWphshrcoShawn VezzaniJNKennen WarmackByron BoyKen DantiJohn Baumamorris101Haley Kline MurphyCheryl SwansonQHJCEPA Office of Atmospheric ProtectionRodeoJohn MannerB BrennerMemorial Regional HealthEmily StonehamKatie GirondaKay LewisEd KAnonymous 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&zuniSharksWithLazersE StationJSouthern Ute TribeUtah State University (USU)John SalzmanT HagemanSxSmithairSteamboatRed Pony FarmLu VenclBeyondAirRabbit Mountain Equestrian CenterTyWphshrcoShawn VezzaniJNKennen WarmackByron BoyKen DantiJohn Baumamorris101Haley Kline MurphyCheryl SwansonQHJCEPA Office of Atmospheric ProtectionRodeoJohn MannerB BrennerMemorial Regional HealthEmily StonehamKatie GirondaKay LewisEd KAnonymous contributor
Live most polluted city ranking
Real-time Colorado most polluted city ranking
Wildfires in Colorado
Real-time information
Active fire
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Learn more about global air quality
Which is the most polluted city in Colorado?
- Ward58
- Applewood45
- Archuleta45
- El Paso45
- La Plata County45
- Douglas44
- Fort Collins44
- Montezuma County44
- Grand County43
- Loveland43
- Pueblo West43
- Larimer42
- Centennial41
- Manitou Springs41
- Mesa41
- Silverton41
- Black Hawk40
- Greeley40
- Jefferson40
- Paonia39
- Timnath39
- Weld39
- Boulder38
- Denver38
- Gunnison County38
- Pitkin County38
- Dolores County37
- Welby37
- Rifle36
- Salida36
- Aspen34
- Cortez34
- Logan County34
- Delta County33
- Shaw Heights33
- Prowers32
- Colorado City31
- Sugar City31
- Twin Lakes, Adams County31
- Cedaredge28
- Black Forest27
- Wellington27
- Boulder County26
- Center26
- Fort Lupton26
- Four Square Mile26
- Genesee26
- Grand Junction26
- Gunbarrel26
- Northglenn26
- Orchard Mesa26
- Redlands26
- Superior26
- Thornton26
- Fruitvale25
- Golden25
- Longmont25
- Paragon Estates25
- Poncha Springs25
- Aristocrat Ranchettes24
- Berthoud24
- Dacono24
- Delta24
- Derby24
- Evans24
- Firestone24
- Florence24
- Gilcrest24
- Hudson24
- Keenesburg24
- La Salle24
- Lochbuie24
- Lyons24
- Mead24
- Milliken24
- Parker24
- Sheridan24
- Sherrelwood24
- Todd Creek24
- Arvada23
- Commerce City23
- Dakota Ridge23
- Gold Hill23
- Kersey23
- Lafayette23
- Lazy Acres23
- Palisade23
- Snowmass Village23
- Tabernash23
- Trail Side23
- Windsor23
- Aguilar22
- Altona22
- Aurora22
- Broomfield22
- Cañon City22
- Conejos22
- Eaton22
- Edgewater22
- Elbert County22
- Estes Park town22
- Granby22
- Highlands Ranch22
- Inverness22
- Julesburg22
- Lakewood22
- Louisville22
- Mountain View22
- Pueblo22
- Bennett21
- Brighton21
- Buena Vista21
- Colorado Springs21
- Durango21
- Eldorado Springs21
- Estes Park21
- Federal Heights21
- La Junta21
- Leadville21
- Niwot21
- Ault20
- Burlington20
- Fruita20
- Green Mountain Falls20
- Hot Sulphur Springs20
- Lake City20
- Park County20
- Routt County20
- Swink20
- Watkins20
- Alamosa County19
- Berkley19
- Castle Pines19
- Castle Rock19
- Costilla County19
- Idaho Springs19
- Moffat County19
- Pueblo County19
- Severance19
- Summit19
- Valmont19
- Westminster19
- Arapahoe County18
- Bayfield18
- Cherry Creek18
- Cherry Hills Village18
- Craig18
- Dove Valley18
- Eagle County18
- Fowler18
- Holly Hills18
- Ignacio18
- Lakeside18
- Mancos18
- Oak Creek18
- Saguache18
- Silverthorne18
- Sterling Ranch18
- Teller18
- Upper Bear Creek18
- Acres Green17
- Castle Pines Village17
- Clifton17
- Dolores17
- Erie17
- Fairmount17
- Grover17
- Hugo17
- Lone Tree17
- Meridian17
- Meridian Village17
- Montrose17
- Palmer Lake17
- Rangely17
- Red Feather Lakes17
- Steamboat Springs17
- Stonegate17
- Strasburg17
- Westcliffe17
- Alamosa16
- Basalt16
- Byers16
- Columbine16
- Columbine Valley16
- Glenwood Springs16
- Gunnison16
- Otero County16
- Pagosa Springs16
- Telluride16
- Trinidad16
- Vail16
- Laporte15
- Louviers15
- Olney Springs15
- Ponderosa Park15
- Rio Blanco15
- Rocky Ford15
- The Pinery15
- Breckenridge14
- Evergreen14
- Hayden14
- Lake14
- Mineral14
- Platteville14
- Sedalia14
- Akron13
- Baca County13
- Brush13
- Cheraw13
- Crook13
- Crowley13
- Fort Morgan13
- Indian Hills13
- Kittredge13
- Manzanola13
- Ordway13
- Sterling13
- Towaoc13
- Aspen Park12
- Kiowa12
- Las Animas12
- Nederland12
- Perry Park12
- Walden12
- Walsh12
- Air Force Academy11
- Central11
- Chaffee County11
- Cimarron Hills11
- Copper Mountain11
- Ellicott11
- Fort Carson11
- Fountain11
- Frederick11
- Garfield County11
- Gleneagle11
- Holyoke11
- Limon11
- Loma11
- Nathrop11
- Security-Widefield11
- Woodmoor11
- Alamosa East10
- Beulah Valley10
- Brookside10
- Clear Creek County10
- Crestone10
- Cripple Creek10
- Custer County10
- Del Norte10
- Dillon10
- Edwards10
- Fairplay10
- Florissant10
- Fraser10
- Frisco10
- Garfield10
- Georgetown10
- Keystone10
- Kremmling10
- Leadville North10
- Lincoln Park10
- Monte Vista10
- Penrose10
- Saguache County10
- San Luis10
- Walsenburg10
- Wheat Ridge10
- Wray10
- Yuma10
- Avon9
- Littleton9
- Minturn9
- Monument9
- Ouray9
- Battlement Mesa8
- Bethune8
- Cattle Creek8
- Cheyenne Wells8
- Collbran8
- Crested Butte8
- Dove Creek8
- Eads8
- Eagle8
- Greenwood Village8
- Gypsum8
- Montrose County8
- Mount Crested Butte8
- Mountain Village8
- New Castle8
- Olathe8
- Orchard City8
- Ouray County8
- Parachute8
- San Miguel County8
- Springfield8
- Wiley8
- Wolcott8
- Cascade-Chipita Park7
- Carbondale6
- Englewood6
- Kit Carson County6
- Lamar6
- El Jebel4
- Maysville3
- West Pleasant View2
- Ken Caryl1
- Aetna Estates0
- Alma0
- Coal Creek, Jefferson County0
- Glendale, Arapahoe County0
- Roxborough Park0
- Silt0
- Stratmoor0
- Winter Park0
- Woodland Park0
