Air quality in Montana
Air quality index (AQI⁺) and PM2.5 air pollution in Montana • 12:19, Jul 31
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?
- Trout Creek120
- Noxon118
- Troy113
- Lincoln County112
- Flathead County107
- Whitefish105
- Darby104
- Libby104
- Montana City101
- Ravalli County99
- Sula99
- Anaconda-Deer Lodge County98
- Kalispell98
- Philipsburg98
- Victor98
- Stevensville97
- Walkerville96
- Wisdom96
- Clancy95
- Helena Valley Northeast95
- Helena Valley Northwest95
- Helena Valley Southeast95
- Helena West Side95
- Chester94
- Lincoln94
- Potomac94
- Craig93
- Gardiner93
- Lockwood93
- Lolo93
- Thompson Falls93
- Townsend93
- Whitehall93
- Bonner-West Riverside92
- East Missoula92
- Four Corners92
- Malmstrom Air Force Base92
- Manhattan92
- Shelby92
- Sun Prairie92
- Three Forks92
- White Sulphur Springs92
- Amsterdam91
- Belgrade91
- Big Sky91
- Geyser91
- Orchard Homes91
- Teton County91
- Corvallis90
- Madison County90
- Missoula County90
- Virginia City90
- Bigfork89
- Conrad89
- Ennis89
- Choteau88
- Cut Bank86
- Stanford86
- Wilsall86
- Wye86
- Lakeside85
- Toole County84
- Columbia Falls83
- Fort Benton83
- North Browning83
- Beaverhead County82
- Livingston82
- Missoula82
- Ravalli82
- Big Arm81
- Boulder81
- Charlo81
- Coram81
- Dayton81
- East Glacier Park Village81
- Eureka81
- Evergreen81
- Glacier County81
- Martin City81
- Pablo81
- Piltzville81
- Seeley Lake81
- Somers81
- West Glacier81
- Bear Dance80
- Browning80
- Harlowton80
- Hot Springs80
- Marion80
- Polebridge80
- Sanders County80
- South Browning80
- Deer Lodge79
- Great Falls79
- Clinton78
- Ulm78
- Big Timber77
- East Helena77
- Lindisfarne77
- Ryegate77
- Alberton76
- Arlee76
- Bozeman76
- Park City76
- Plains76
- Roundup76
- Rudyard76
- West Yellowstone76
- Winnett76
- Churchill75
- Columbus75
- Hamilton75
- Helena75
- Shepherd75
- Woods Bay75
- Gallatin County74
- Hardin74
- Hysham74
- Park County74
- Pryor74
- Red Lodge74
- Sweet Grass County74
- Crow Agency73
- Bridger CDP72
- Chinook72
- Colstrip72
- Forsyth72
- Froid72
- St. Ignatius72
- Superior72
- Fort Belknap Agency71
- Jordan71
- Lame Deer71
- Plentywood71
- Richland71
- Scobey71
- Sidney71
- Birney70
- Judith Basin County70
- Malta70
- Circle69
- Glendive69
- Heart Butte69
- Sedan69
- Wolf Point69
- Cascade County68
- Glasgow68
- Lake County68
- Miles City68
- Stillwater County68
- Terry68
- Dillon67
- Helena Valley West Central67
- Butte66
- Wibaux66
- Big Horn County65
- Cascade65
- Frenchtown65
- Absarokee64
- Baker64
- Custer County64
- Dixon64
- Polson64
- Billings63
- Broadus62
- Ekalaka62
- Laurel62
- Lewis and Clark County62
- Lewistown62
- Hill County61
- Roberts61
- St. Marie61
- Havre North59
- Culbertson58
- West Glendive58
- Roosevelt County57
- Havre55
- Petroleum County54
- Ronan54
- Rosebud County52
- Phillips County45
