Air quality in Montana
Air quality index (AQI⁺) and PM2.5 air pollution in Montana • 18:26, Jun 22
Live most polluted city ranking
Real-time Montana most polluted city ranking
Learn more about global air quality
Which is the most polluted city in Montana?
- Missoula38
- Bozeman36
- Columbia Falls35
- Lewistown35
- Lockwood34
- Dillon33
- Livingston32
- Pablo32
- Churchill31
- Darby31
- Gallatin County31
- Lewis and Clark County31
- Roberts31
- Stillwater County30
- Boulder29
- Hamilton29
- Libby29
- Big Sky28
- Deer Lodge28
- Park County28
- Plains28
- Thompson Falls28
- Trout Creek28
- Billings27
- Lakeside27
- Ravalli County27
- St. Ignatius27
- Sweet Grass County27
- Alberton26
- Beaverhead County26
- Culbertson26
- Seeley Lake26
- Arlee25
- East Helena25
- Flathead County25
- Noxon25
- Bear Dance24
- Lincoln County24
- Lolo24
- Madison County24
- Sanders County24
- Sedan24
- Troy24
- West Glacier24
- Dixon23
- Missoula County23
- Orchard Homes23
- Helena22
- Helena Valley West Central22
- Lake County22
- Clinton21
- Frenchtown21
- Piltzville21
- West Glendive21
- Corvallis20
- Kalispell20
- Whitefish20
- Bridger CDP19
- Four Corners18
- Havre18
- Lindisfarne18
- Woods Bay18
- Big Horn County17
- Pryor17
- Ronan17
- Roosevelt County17
- Columbus16
- Crow Agency16
- Hardin16
- Laurel16
- Park City16
- Red Lodge16
- Shepherd16
- Sula16
- Superior16
- Wisdom16
- Chester15
- Cut Bank15
- Stevensville15
- Victor15
- Absarokee14
- Anaconda-Deer Lodge County14
- Birney14
- Bonner-West Riverside14
- Cascade County14
- Charlo14
- Colstrip14
- East Missoula14
- Hysham14
- Lame Deer14
- Philipsburg14
- Potomac14
- Ravalli14
- Roundup14
- Ryegate14
- Walkerville14
- Wye14
- Big Timber13
- Broadus13
- Butte13
- Forsyth13
- Glacier County13
- Heart Butte13
- Hot Springs13
- St. Marie13
- Baker12
- Custer County12
- Ekalaka12
- Harlowton12
- Miles City12
- Shelby12
- Terry12
- Winnett12
- Amsterdam11
- Belgrade11
- Choteau11
- Circle11
- Ennis11
- Froid11
- Gardiner11
- Glasgow11
- Glendive11
- Great Falls11
- Jordan11
- Manhattan11
- Plentywood11
- Richland11
- Scobey11
- Sidney11
- Three Forks11
- Virginia City11
- West Yellowstone11
- Whitehall11
- Wibaux11
- Wilsall11
- Wolf Point11
- Big Arm10
- Cascade10
- Clancy10
- Dayton10
- Helena Valley Southeast10
- Helena West Side10
- Marion10
- Montana City10
- Polson10
- Townsend10
- Bigfork9
- Craig9
- Evergreen9
- Helena Valley Northeast9
- Helena Valley Northwest9
- Lincoln9
- Rosebud County9
- Somers9
- Toole County9
- White Sulphur Springs9
- Coram8
- Fort Belknap Agency8
- Geyser8
- Malta8
- Martin City8
- Phillips County8
- Stanford8
- Chinook7
- Eureka7
- Judith Basin County7
- Malmstrom Air Force Base7
- Polebridge7
- Sun Prairie7
- Teton County7
- Browning6
- Conrad6
- East Glacier Park Village6
- Fort Benton6
- North Browning6
- Rudyard6
- South Browning6
- Ulm6
