Air quality in Colorado
Air quality index (AQI⁺) and PM2.5 air pollution in Colorado • 01:19, Oct 12
Colorado Department of Public Health & Environment (CDPHE)wyndham centerRuss StewartMatt MaccauxAaron BieberS ForestLTom FullerCoalition for Clean Air (CCA)GeorgeLynchUSA National Park ServicejohnCalifornia Air Resources Board (CARB)mckay&zuniSharksWithLazersE StationJSouthern Ute TribeUtah State University (USU)John SalzmanT HagemanSxSmithSteamboatairRed Pony FarmLu VenclBeyondAirRabbit Mountain Equestrian CenterTyWShawn VezzaniphshrcoJNKennen WarmackByron BoyKen DantiJohn Baumamorris101Cheryl SwansonHaley Kline MurphyJCQHEPA Office of Atmospheric ProtectionRodeoB BrennerJohn MannerMemorial Regional HealthEmily StonehamAnonymousKay LewisKatie GirondaEd KKitDDenAnonymous contributor
Colorado Department of Public Health & Environment (CDPHE)wyndham centerRuss StewartMatt MaccauxAaron BieberS ForestLTom FullerCoalition for Clean Air (CCA)GeorgeLynchUSA National Park ServicejohnCalifornia Air Resources Board (CARB)mckay&zuniSharksWithLazersE StationJSouthern Ute TribeUtah State University (USU)John SalzmanT HagemanSxSmithSteamboatairRed Pony FarmLu VenclBeyondAirRabbit Mountain Equestrian CenterTyWShawn VezzaniphshrcoJNKennen WarmackByron BoyKen DantiJohn Baumamorris101Cheryl SwansonHaley Kline MurphyJCQHEPA Office of Atmospheric ProtectionRodeoB BrennerJohn MannerMemorial Regional HealthEmily StonehamAnonymousKay LewisKatie GirondaEd 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?
- Loveland51
- Larimer49
- Jefferson48
- Timnath45
- Boulder42
- Grand County42
- Applewood41
- Logan County41
- Sugar City39
- Prowers38
- Commerce City37
- Greeley36
- Alamosa35
- El Paso35
- Colorado City34
- Evergreen34
- Archuleta33
- Dolores County33
- Mesa33
- Weld33
- Black Hawk32
- Centennial32
- Denver32
- Florence32
- Manitou Springs32
- Montezuma County32
- Pueblo West32
- Aspen31
- Cortez31
- Estes Park town31
- Gunnison County31
- La Plata County31
- Pueblo County30
- Aguilar29
- Berthoud29
- Julesburg29
- Lazy Acres29
- Lyons29
- Niwot29
- Rifle29
- Boulder County28
- Cherry Creek28
- Fort Lupton28
- Golden28
- Lafayette28
- Parker28
- Superior28
- Twin Lakes, Adams County28
- Walsh28
- Baca County27
- Black Forest27
- Burlington27
- La Junta27
- Longmont27
- Otero County27
- Palmer Lake27
- Pitkin County27
- Shaw Heights27
- Trail Side27
- Dakota Ridge26
- Eldorado Springs26
- Estes Park26
- Gunbarrel26
- Highlands Ranch26
- Idaho Springs26
- Paragon Estates26
- Sterling Ranch26
- Swink26
- Thornton26
- Trinidad26
- Winter Park26
- Arapahoe County25
- Aurora25
- Buena Vista25
- Castle Pines25
- Douglas25
- Erie25
- Genesee25
- Inverness25
- Lakewood25
- Northglenn25
- Olney Springs25
- Poncha Springs25
- Pueblo25
- Red Feather Lakes25
- Salida25
- Wellington25
- Windsor25
- Cañon City24
- Eagle County24
- Elbert County24
- Federal Heights24
- Fort Collins24
- Fowler24
- Granby24
- Greenwood Village24
- Hugo24
- Laporte24
- Manzanola24
- Vail24
- Arvada23
- Breckenridge23
- Broomfield23
- Chaffee County23
- Colorado Springs23
- Costilla County23
- Edwards23
- Green Mountain Falls23
- Hot Sulphur Springs23
- Keystone23
- Louisville23
- Mountain View23
- Nathrop23
- Park County23
- Redlands23
- Saguache23
- Silverthorne23
- Summit23
- Ward23
- Basalt22
- Conejos22
- Crowley22
- Edgewater22
- Lamar22
- Leadville22
- Teller22
- Westcliffe22
- Westminster22
- Wheat Ridge22
- Avon21
- Cascade-Chipita Park21
- Copper Mountain21
- El Jebel21
- Grand Junction21
- Oak Creek21
- Snowmass Village21
- Bennett20
- Center20
- Derby20
- Durango20
- Four Square Mile20
- Orchard Mesa20
- Pagosa Springs20
- Palisade20
- Steamboat Springs20
- Brighton19
- Delta19
- Englewood19
- Glenwood Springs19
- Gunnison19
- Littleton19
- Sheridan19
- Sherrelwood19
- Fruita18
- Garfield County18
- Mancos18
- Ouray18
- Welby18
- Delta County17
- Dolores17
- Fruitvale17
- Las Animas17
- Montrose17
- Springfield17
- Cheraw16
- Lake City16
- Routt County16
- Upper Bear Creek16
- Bayfield14
- Bethune14
- Cheyenne Wells14
- Eads14
- Ignacio14
- Ordway14
- Platteville14
- Rocky Ford14
- Silverton14
- Telluride14
- Wiley14
- Cedaredge13
- Custer County13
- Lake13
- Craig12
- Monument12
- Akron11
- Aristocrat Ranchettes11
- Ault11
- Beulah Valley11
- Brush11
- Byers11
- Cimarron Hills11
- Crook11
- Eaton11
- Ellicott11
- Evans11
- Fort Carson11
- Fort Morgan11
- Fountain11
- Gilcrest11
- Grover11
- Holyoke11
- Hudson11
- Keenesburg11
- Kersey11
- La Salle11
- Limon11
- Lochbuie11
- Milliken11
- Penrose11
- Security-Widefield11
- Severance11
- Sterling11
- Strasburg11
- Stratmoor11
- Walsenburg11
- Wray11
- Yuma11
- Firestone10
- Mead10
- Silt10
- Altona9
- Brookside9
- Coal Creek, Jefferson County9
- Cripple Creek9
- Dacono9
- Dove Creek9
- Fairmount9
- Kiowa9
- Lincoln Park9
- Moffat County9
- Todd Creek9
- Towaoc9
- Valmont9
- Watkins9
- Acres Green8
- Air Force Academy8
- Aspen Park8
- Berkley8
- Castle Pines Village8
- Cherry Hills Village8
- Columbine8
- Columbine Valley8
- Crestone8
- Dove Valley8
- Florissant8
- Gleneagle8
- Holly Hills8
- Indian Hills8
- Ken Caryl8
- Kittredge8
- Loma8
- Lone Tree8
- Louviers8
- Meridian8
- Meridian Village8
- Mineral8
- Nederland8
- Paonia8
- Perry Park8
- Ponderosa Park8
- Sedalia8
- Stonegate8
- The Pinery8
- West Pleasant View8
- Woodland Park8
- Woodmoor8
- Alamosa County7
- Alamosa East7
- Battlement Mesa7
- Cattle Creek7
- Central7
- Clear Creek County7
- Collbran7
- Crested Butte7
- Del Norte7
- Dillon7
- Eagle7
- Fairplay7
- Fraser7
- Frisco7
- Garfield7
- Georgetown7
- Gypsum7
- Hayden7
- Kremmling7
- Leadville North7
- Maysville7
- Minturn7
- Monte Vista7
- Montrose County7
- Mount Crested Butte7
- Mountain Village7
- New Castle7
- Olathe7
- Orchard City7
- Ouray County7
- Parachute7
- Rangely7
- Rio Blanco7
- Saguache County7
- San Luis7
- San Miguel County7
- Tabernash7
- Walden7
- Wolcott7
- Frederick6
- Kit Carson County6
- Clifton4
- Aetna Estates0
- Alma0
- Carbondale0
- Castle Rock0
- Glendale, Arapahoe County0
- Lakeside0
- Roxborough Park0
