Air quality in Montana
Air quality index (AQI⁺) and PM2.5 air pollution in Montana • 13:12, Jun 12
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?
- Great Falls66
- Libby54
- Superior51
- Teton County37
- Butte35
- Hot Springs32
- Bear Dance31
- St. Ignatius29
- Boulder26
- Lockwood26
- Kalispell24
- Seeley Lake24
- Stillwater County24
- Darby23
- Dillon23
- Lewistown23
- Park City23
- Plains23
- Cut Bank22
- Four Corners22
- Absarokee21
- Churchill21
- Columbia Falls21
- East Helena21
- Lakeside21
- Lincoln County21
- Orchard Homes21
- Park County21
- Red Lodge21
- Shelby21
- Thompson Falls21
- Frenchtown20
- Hamilton20
- Helena Valley West Central20
- Livingston20
- Noxon20
- Pablo20
- Arlee19
- Helena19
- Hill County19
- Lewis and Clark County19
- Madison County19
- Whitefish19
- Big Sky18
- Bozeman18
- Broadus18
- Cascade18
- Culbertson18
- Glacier County18
- Missoula18
- Troy18
- Gallatin County17
- Havre17
- Lolo17
- Piltzville17
- Ronan17
- Roosevelt County17
- Alberton16
- Birney16
- Chester16
- Choteau16
- Ekalaka16
- Missoula County16
- Ravalli County16
- West Glendive16
- Beaverhead County15
- Deer Lodge15
- North Browning15
- St. Marie15
- Flathead County14
- Lake County14
- Lame Deer14
- Anaconda-Deer Lodge County13
- Bonner-West Riverside13
- Cascade County13
- Charlo13
- Colstrip13
- Craig13
- Custer County13
- East Missoula13
- Geyser13
- Lindisfarne13
- Malmstrom Air Force Base13
- Philipsburg13
- Potomac13
- Ravalli13
- Sanders County13
- Stevensville13
- Sun Prairie13
- Sweet Grass County13
- Trout Creek13
- Victor13
- Wisdom13
- Wye13
- Big Arm12
- Billings12
- Conrad12
- Dayton12
- Gardiner12
- Marion12
- Miles City12
- Polson12
- Stanford12
- Sula12
- West Glacier12
- West Yellowstone12
- Woods Bay12
- Baker11
- Bigfork11
- Browning11
- Coram11
- Crow Agency11
- East Glacier Park Village11
- Evergreen11
- Forsyth11
- Hardin11
- Laurel11
- Martin City11
- Polebridge11
- Pryor11
- Roundup11
- Ryegate11
- Shepherd11
- Somers11
- South Browning11
- Big Horn County10
- Columbus10
- Harlowton10
- Hysham10
- Wilsall10
- Amsterdam9
- Belgrade9
- Big Timber9
- Clancy9
- Corvallis9
- Ennis9
- Froid9
- Helena Valley Northeast9
- Helena Valley Northwest9
- Helena Valley Southeast9
- Helena West Side9
- Lincoln9
- Manhattan9
- Montana City9
- Phillips County9
- Richland9
- Roberts9
- Rudyard9
- Sidney9
- Three Forks9
- Townsend9
- Virginia City9
- Walkerville9
- White Sulphur Springs9
- Whitehall9
- Wibaux9
- Eureka8
- Fort Benton8
- Plentywood8
- Terry8
- Chinook7
- Fort Belknap Agency7
- Malta7
- Scobey7
- Ulm7
- Winnett7
- Circle6
- Glasgow6
- Glendive6
- Heart Butte6
- Jordan6
- Sedan6
- Wolf Point6
- Dixon4
- Clinton3
- Toole County2
- Rosebud County1
