Air quality in Montana
Air quality index (AQI⁺) and PM2.5 air pollution in Montana • 11:16, May 23
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?
- Seeley Lake53
- Culbertson41
- Libby40
- Wye38
- West Glendive37
- Bear Dance34
- Boulder31
- Churchill31
- Plains31
- Cut Bank29
- Deer Lodge29
- Noxon29
- Pablo29
- Arlee28
- Lockwood28
- Park City28
- Shelby28
- Thompson Falls28
- East Helena27
- Helena27
- Roosevelt County27
- St. Ignatius27
- Frenchtown26
- Heart Butte26
- Orchard Homes26
- Ravalli County26
- Stillwater County26
- Troy26
- Billings25
- Glacier County25
- Lewistown25
- Darby24
- Havre24
- Lolo24
- Park County24
- Lake County23
- Lakeside23
- Missoula23
- Cascade County22
- Judith Basin County22
- Lewis and Clark County22
- Alberton21
- Gardiner21
- Helena Valley West Central21
- North Browning21
- Sweet Grass County21
- Choteau20
- Livingston20
- Bozeman19
- Cascade19
- Dillon19
- Gallatin County19
- Hamilton19
- Piltzville19
- St. Marie19
- Teton County19
- Trout Creek19
- Absarokee18
- Clinton18
- Corvallis18
- Dixon18
- Great Falls18
- Madison County18
- Missoula County18
- Sanders County18
- Sedan18
- Superior18
- Woods Bay18
- Lincoln County17
- Lindisfarne17
- Phillips County17
- Roberts17
- Anaconda-Deer Lodge County16
- Big Arm16
- Bonner-West Riverside16
- Charlo16
- Clancy16
- Craig16
- Dayton16
- East Missoula16
- Eureka16
- Froid16
- Helena Valley Northeast16
- Helena Valley Northwest16
- Helena Valley Southeast16
- Helena West Side16
- Hill County16
- Hot Springs16
- Lincoln16
- Marion16
- Montana City16
- Philipsburg16
- Plentywood16
- Polson16
- Potomac16
- Ravalli16
- Stevensville16
- Sula16
- Townsend16
- Victor16
- Walkerville16
- West Glacier16
- Whitehall16
- Wisdom16
- Chester15
- Columbia Falls15
- Sidney15
- Three Forks15
- Amsterdam14
- Big Sky14
- Browning14
- Conrad14
- Coram14
- East Glacier Park Village14
- Ennis14
- Evergreen14
- Kalispell14
- Malmstrom Air Force Base14
- Manhattan14
- Martin City14
- Polebridge14
- Richland14
- Scobey14
- Somers14
- South Browning14
- Sun Prairie14
- Virginia City14
- West Yellowstone14
- White Sulphur Springs14
- Wibaux14
- Baker13
- Four Corners13
- Glendive13
- Red Lodge13
- Ulm13
- Whitefish13
- Wolf Point13
- Circle12
- Ekalaka12
- Flathead County12
- Fort Belknap Agency12
- Geyser12
- Glasgow12
- Malta12
- Roundup12
- Winnett12
- Belgrade11
- Bigfork11
- Birney11
- Bridger CDP11
- Broadus11
- Chinook11
- Colstrip11
- Columbus11
- Crow Agency11
- Custer County11
- Forsyth11
- Fort Benton11
- Hardin11
- Harlowton11
- Hysham11
- Jordan11
- Lame Deer11
- Laurel11
- Miles City11
- Pryor11
- Ronan11
- Rudyard11
- Ryegate11
- Shepherd11
- Stanford11
- Terry11
- Toole County11
- Wilsall9
- Beaverhead County8
- Butte8
- Big Timber7
- Rosebud County2
