Air quality in Montana
Air quality index (AQI⁺) and PM2.5 air pollution in Montana • 08:16, 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?
- Alberton44
- Bear Dance30
- Plains29
- Pablo28
- Billings24
- Noxon24
- Piltzville23
- Roosevelt County23
- Butte22
- Lewis and Clark County22
- Libby22
- Livingston21
- Seeley Lake21
- West Glendive21
- Lewistown20
- Arlee19
- Corvallis19
- Culbertson19
- Glacier County19
- Heart Butte18
- Lockwood18
- Sanders County18
- Wye18
- Boulder17
- East Helena17
- Eureka17
- Gardiner17
- Helena17
- Missoula17
- Park City17
- Plentywood17
- Ravalli County17
- Sweet Grass County17
- West Glacier17
- Cascade County16
- Clinton16
- Deer Lodge16
- Flathead County16
- Froid16
- Gallatin County16
- Hill County16
- Judith Basin County16
- Orchard Homes16
- Polebridge16
- Sidney16
- Churchill15
- Coram15
- Havre15
- Martin City15
- Thompson Falls15
- Birney14
- Bozeman14
- Browning14
- Chester14
- Colstrip14
- Crow Agency14
- Evergreen14
- Frenchtown14
- Hamilton14
- Hardin14
- Hysham14
- Lame Deer14
- Lolo14
- Marion14
- Pryor14
- Richland14
- Scobey14
- Shepherd14
- South Browning14
- St. Ignatius14
- Stillwater County14
- Wolf Point14
- Baker13
- Broadus13
- Circle13
- Clancy13
- Craig13
- East Glacier Park Village13
- Ekalaka13
- Forsyth13
- Glendive13
- Great Falls13
- Helena Valley Northeast13
- Helena Valley Northwest13
- Helena Valley Southeast13
- Helena West Side13
- Jordan13
- Laurel13
- Lincoln13
- Lincoln County13
- Miles City13
- Montana City13
- Philipsburg13
- Phillips County13
- Potomac13
- Red Lodge13
- St. Marie13
- Terry13
- Walkerville13
- Wibaux13
- Absarokee12
- Amsterdam12
- Anaconda-Deer Lodge County12
- Belgrade12
- Big Arm12
- Bonner-West Riverside12
- Charlo12
- Darby12
- Dayton12
- East Missoula12
- Ennis12
- Helena Valley West Central12
- Hot Springs12
- Lake County12
- Lakeside12
- Madison County12
- Malmstrom Air Force Base12
- Manhattan12
- Missoula County12
- Park County12
- Polson12
- Ravalli12
- Sedan12
- Somers12
- Stevensville12
- Sula12
- Sun Prairie12
- Superior12
- Three Forks12
- Townsend12
- Troy12
- Ulm12
- Victor12
- Virginia City12
- Whitehall12
- Wisdom12
- Woods Bay12
- Bigfork11
- Conrad11
- Cut Bank11
- Dillon11
- Kalispell11
- Lindisfarne11
- Ronan11
- Teton County11
- Trout Creek11
- West Yellowstone11
- Choteau10
- Geyser10
- White Sulphur Springs10
- Whitefish10
- Cascade9
- Chinook9
- Columbus9
- Fort Belknap Agency9
- Fort Benton9
- Glasgow9
- Harlowton9
- Malta9
- Roberts9
- Roundup9
- Ryegate9
- Stanford9
- Wilsall9
- Winnett9
- Big Sky8
- Big Timber8
- Rudyard8
- Dixon7
- North Browning7
- Shelby7
- Bridger CDP6
- Columbia Falls6
- Four Corners6
- Custer County3
- Toole County3
- Rosebud County2
- Beaverhead County1
