Air quality in Montana
Air quality index (AQI⁺) and PM2.5 air pollution in Montana • 12:56, Jul 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?
- Montana City146
- Troy68
- Seeley Lake56
- Anaconda-Deer Lodge County53
- Bonner-West Riverside53
- East Missoula53
- Ennis53
- Lincoln County53
- Philipsburg53
- Stevensville53
- Sula53
- Superior53
- Victor53
- Virginia City53
- Walkerville53
- West Yellowstone53
- Whitehall53
- Wisdom53
- Wye53
- Amsterdam52
- Belgrade52
- Charlo52
- Columbus52
- Crow Agency52
- Hot Springs52
- Laurel52
- Manhattan52
- Marion52
- Noxon52
- Park City52
- Potomac52
- Pryor52
- Ravalli52
- Three Forks52
- Big Timber51
- Broadus51
- Hardin51
- Birney48
- Shepherd48
- Wilsall48
- Big Arm47
- Columbia Falls46
- Frenchtown46
- Gardiner46
- Dayton43
- Libby43
- Ekalaka41
- Lewis and Clark County41
- Missoula41
- Whitefish39
- Phillips County38
- Trout Creek38
- Lewistown37
- Plains37
- Great Falls36
- Kalispell34
- Lame Deer34
- North Browning34
- Thompson Falls34
- Big Sky33
- Heart Butte33
- Flathead County32
- Lakeside32
- Teton County32
- Cut Bank31
- Lockwood31
- St. Ignatius31
- West Glendive31
- Arlee30
- Glacier County30
- Somers29
- West Glacier29
- Bear Dance28
- Bigfork28
- Choteau28
- Alberton27
- Baker27
- Havre27
- Pablo27
- Clancy26
- Eureka26
- Hamilton26
- Lolo26
- Orchard Homes26
- Shelby26
- Townsend26
- Darby25
- Butte24
- Deer Lodge24
- East Helena24
- Ravalli County24
- Chester23
- Dixon23
- Evergreen23
- Helena West Side23
- Judith Basin County23
- Lindisfarne23
- Boulder22
- Piltzville22
- Ryegate22
- Stillwater County22
- Woods Bay22
- Dillon21
- Harlowton21
- Helena21
- Helena Valley Northeast21
- Helena Valley Northwest21
- Helena Valley Southeast21
- Sanders County21
- Clinton20
- Helena Valley West Central20
- Lincoln20
- Sedan20
- White Sulphur Springs20
- Cascade19
- Churchill19
- Coram19
- Corvallis19
- Craig19
- Custer County19
- Gallatin County19
- Martin City19
- Polebridge19
- Roberts19
- Sweet Grass County19
- Billings18
- Cascade County18
- Colstrip18
- East Glacier Park Village18
- Hill County18
- Livingston18
- Missoula County18
- Roosevelt County18
- Ulm18
- Browning17
- Four Corners17
- Lake County17
- Park County17
- Scobey17
- South Browning17
- Wibaux17
- Wolf Point17
- Absarokee16
- Bozeman16
- Circle16
- Froid16
- Glasgow16
- Glendive16
- Miles City16
- Plentywood16
- Richland16
- Ronan16
- Rosebud County16
- Roundup16
- Sidney16
- Terry16
- Madison County15
- Culbertson14
- Conrad13
- Fort Benton13
- Geyser13
- Hysham13
- Malmstrom Air Force Base13
- Red Lodge13
- Stanford13
- Sun Prairie13
- Winnett13
- Bridger CDP12
- Forsyth12
- Jordan12
- Malta12
- Rudyard12
- Chinook11
- Fort Belknap Agency11
- Big Horn County10
- Polson9
- St. Marie7
- Toole County3
- Beaverhead County2
