Air quality in Montana
Air quality index (AQI⁺) and PM2.5 air pollution in Montana • 15:10, May 06
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?
- Lewistown44
- Bigfork39
- Chester39
- Darby39
- Thompson Falls39
- Helena38
- Browning36
- Livingston36
- Winnett36
- Billings35
- Noxon35
- Ravalli County35
- Arlee34
- Crow Agency34
- Deer Lodge34
- Libby34
- Martin City34
- Pryor34
- Shepherd33
- West Glacier33
- Dillon32
- Townsend32
- Colstrip31
- Eureka31
- Polson31
- Seeley Lake31
- St. Ignatius31
- Wisdom31
- Kalispell30
- Laurel30
- Amsterdam29
- Boulder29
- Cut Bank29
- Lolo29
- Missoula29
- Columbia Falls28
- Marion28
- Potomac28
- Stevensville28
- Walkerville28
- Alberton27
- Belgrade27
- Choteau27
- Columbus27
- Gardiner27
- Hamilton27
- Helena Valley West Central27
- Hysham27
- Lame Deer27
- Lockwood27
- Orchard Homes27
- Plains27
- Bozeman26
- Cascade26
- Charlo26
- Clancy26
- Clinton26
- Havre26
- Malta26
- Montana City26
- Superior26
- Troy26
- Whitehall26
- Craig25
- Great Falls25
- Hot Springs25
- Roberts25
- Ryegate25
- Whitefish25
- Big Timber24
- Broadus24
- Ekalaka24
- Geyser24
- Heart Butte24
- Miles City24
- Sun Prairie24
- Three Forks24
- West Glendive24
- Absarokee23
- East Helena23
- Frenchtown23
- Harlowton23
- Lakeside23
- Manhattan23
- Ulm23
- Victor23
- Virginia City23
- White Sulphur Springs23
- Wilsall23
- Big Sky22
- Fort Benton22
- Glasgow22
- Lincoln22
- Ravalli22
- Ronan22
- Roundup22
- Shelby22
- Stanford22
- Birney21
- Coram21
- Corvallis21
- Ennis21
- Evergreen21
- Helena Valley Northeast21
- Helena Valley Southeast21
- Malmstrom Air Force Base21
- Polebridge21
- Somers21
- Sula21
- Anaconda-Deer Lodge County20
- Conrad20
- Rudyard20
- Philipsburg19
- Red Lodge19
- Baker18
- East Glacier Park Village18
- East Missoula18
- Helena Valley Northwest18
- Helena West Side18
- North Browning18
- South Browning18
- Bonner-West Riverside17
- Dayton17
- Hardin17
- Jordan17
- Terry17
- West Yellowstone17
- Butte16
- Chinook16
- Fort Belknap Agency16
- Four Corners16
- Pablo15
- Plentywood15
- Scobey15
- Circle14
- Culbertson14
- Froid14
- Wolf Point14
- Glendive13
- Richland13
- Sidney13
- Wibaux13
- Big Arm11
- Forsyth2
