Air quality in Montana
Air quality index (AQI⁺) and PM2.5 air pollution in Montana • 18:51, May 18
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?
- Bear Dance
- Bridger CDP
- Custer County
- Lewis and Clark County
- Lindisfarne
- Park County
- Piltzville
- Sanders County
- Stillwater County
- Bigfork38
- Glacier County36
- Madison County36
- Phillips County36
- Missoula34
- Helena33
- Hill County33
- Lewistown32
- Seeley Lake29
- St. Ignatius29
- Arlee28
- Choteau28
- Clinton28
- Frenchtown28
- Lolo28
- Boulder27
- Lake County27
- Orchard Homes27
- Thompson Falls27
- Wye27
- Alberton26
- Darby26
- Dillon26
- East Helena26
- Havre26
- Helena Valley West Central26
- Kalispell26
- Plains26
- Roosevelt County26
- Columbia Falls24
- Cut Bank24
- Deer Lodge24
- Hamilton24
- Missoula County24
- Ronan24
- Billings23
- Butte23
- Churchill23
- Gallatin County23
- Great Falls23
- Ravalli County23
- Teton County23
- Cascade22
- Cascade County22
- Chester22
- Dixon22
- Judith Basin County22
- Libby22
- Trout Creek22
- West Glendive21
- Whitefish21
- Bozeman20
- Noxon20
- Heart Butte19
- Troy19
- Woods Bay19
- Beaverhead County18
- Scobey18
- Sedan18
- Sweet Grass County18
- Absarokee17
- Flathead County17
- Gardiner17
- Lakeside17
- Livingston17
- Coram16
- Corvallis16
- Eureka16
- Evergreen16
- Lincoln County16
- Martin City16
- North Browning16
- Polebridge16
- Somers16
- West Glacier16
- Baker15
- Froid15
- Glendive15
- Lockwood15
- Plentywood15
- Richland15
- Wibaux15
- Wolf Point15
- Big Sky14
- Circle14
- Ekalaka14
- Terry14
- Big Arm13
- Broadus13
- Charlo13
- Chinook13
- Dayton13
- Fort Belknap Agency13
- Four Corners13
- Hot Springs13
- Laurel13
- Malta13
- Pablo13
- Ravalli13
- Ryegate13
- Superior13
- Birney12
- Bonner-West Riverside12
- Clancy12
- Colstrip12
- Conrad12
- Craig12
- Crow Agency12
- East Glacier Park Village12
- East Missoula12
- Forsyth12
- Fort Benton12
- Helena Valley Northeast12
- Helena Valley Northwest12
- Helena Valley Southeast12
- Helena West Side12
- Hysham12
- Jordan12
- Lame Deer12
- Lincoln12
- Malmstrom Air Force Base12
- Montana City12
- Philipsburg12
- Potomac12
- Pryor12
- Roundup12
- Rudyard12
- Shelby12
- Shepherd12
- Sidney12
- South Browning12
- Sun Prairie12
- Victor12
- Winnett12
- Amsterdam11
- Anaconda-Deer Lodge County11
- Belgrade11
- Big Timber11
- Harlowton11
- Manhattan11
- Stanford11
- Sula11
- Three Forks11
- Townsend11
- Walkerville11
- White Sulphur Springs11
- Whitehall11
- Wisdom11
- Ennis10
- Virginia City10
- Culbertson8
- Rosebud County8
