Air quality in Montana
Air quality index (AQI⁺) and PM2.5 air pollution in Montana • 15:15, Apr 19
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?
- Thompson Falls64
- Libby58
- Noxon58
- Deer Lodge54
- Kalispell46
- Plentywood44
- Scobey44
- Froid43
- Pablo41
- Plains41
- Sidney39
- Richland38
- Boulder37
- Culbertson36
- Lakeside35
- Martin City33
- Glendive32
- Stevensville32
- Wibaux32
- Wolf Point32
- Lockwood29
- Seeley Lake29
- Circle28
- Helena28
- Helena Valley West Central28
- Troy28
- East Helena27
- Livingston27
- Polson27
- St. Ignatius27
- West Glendive27
- Baker26
- Cut Bank26
- Winnett26
- Hot Springs25
- Lewistown25
- Ronan25
- Superior25
- Terry25
- Big Timber24
- Orchard Homes23
- Arlee22
- Browning22
- Darby22
- Frenchtown22
- Red Lodge22
- Townsend22
- Belgrade21
- Charlo21
- Columbus21
- Roberts21
- Victor21
- Absarokee20
- Bigfork20
- Billings20
- Bonner-West Riverside20
- Choteau20
- Clancy20
- Crow Agency20
- Dillon20
- Evergreen20
- Helena Valley Northeast20
- Helena Valley Northwest20
- Helena Valley Southeast20
- Helena West Side20
- Laurel20
- Montana City20
- Pryor20
- Ravalli20
- Shepherd20
- Somers20
- Three Forks20
- White Sulphur Springs20
- Bozeman19
- Colstrip19
- Lame Deer19
- Manhattan19
- West Glacier19
- Alberton18
- Broadus18
- Corvallis18
- Craig18
- Ekalaka18
- Forsyth18
- Four Corners18
- Gardiner18
- Hysham18
- Jordan18
- Whitefish18
- Amsterdam17
- Great Falls17
- Lolo17
- Cascade16
- Miles City16
- Missoula16
- Glasgow15
- North Browning15
- Ryegate15
- Butte14
- Clinton14
- Coram14
- Eureka14
- Hamilton14
- Harlowton14
- Havre14
- Malta14
- Ravalli County14
- Virginia City14
- Whitehall14
- Chinook13
- Ennis13
- Fort Belknap Agency13
- Malmstrom Air Force Base13
- Marion13
- Polebridge13
- Roundup13
- Sun Prairie13
- Wilsall13
- Big Sky12
- Dayton12
- Rudyard12
- Ulm12
- Columbia Falls11
- West Yellowstone11
- Potomac10
- East Missoula9
- Shelby9
- Anaconda-Deer Lodge County8
- Chester8
- Conrad8
- East Glacier Park Village8
- Fort Benton8
- Lincoln8
- Philipsburg8
- South Browning8
- Stanford8
- Sula8
- Walkerville7
- Big Arm6
- Hardin6
- Wisdom6
- Birney3
