Air quality in Montana
Air quality index (AQI⁺) and PM2.5 air pollution in Montana • 07:40, 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?
- Libby124
- Lincoln County118
- Noxon116
- Trout Creek116
- Troy114
- Flathead County105
- Darby104
- Montana City104
- Whitefish104
- Ravalli County100
- Sula99
- Anaconda-Deer Lodge County98
- Philipsburg98
- Victor98
- Stevensville97
- Butte96
- Chester96
- Walkerville96
- Wisdom96
- Clancy95
- Helena Valley Northeast95
- Helena Valley Northwest95
- Helena Valley Southeast95
- Helena West Side95
- Thompson Falls95
- Lincoln94
- Potomac94
- Craig93
- Gardiner93
- Lolo93
- Townsend93
- Whitehall93
- Bonner-West Riverside92
- East Missoula92
- Malmstrom Air Force Base92
- Manhattan92
- Sun Prairie92
- Three Forks92
- White Sulphur Springs92
- Amsterdam91
- Belgrade91
- Big Sky91
- Four Corners91
- Geyser91
- North Browning91
- Orchard Homes91
- Teton County91
- Bigfork90
- Corvallis90
- Madison County90
- Missoula County90
- Virginia City90
- Conrad89
- Ennis89
- Hamilton89
- Columbia Falls88
- Glacier County88
- Kalispell88
- Shelby88
- Stanford86
- Toole County86
- Wilsall86
- Wye86
- Cut Bank85
- Lakeside85
- Missoula85
- Cascade County84
- Beaverhead County83
- Fort Benton83
- Piltzville83
- Ravalli82
- Seeley Lake82
- Big Arm81
- Charlo81
- Choteau81
- Coram81
- Dayton81
- East Glacier Park Village81
- Eureka81
- Evergreen81
- Martin City81
- Pablo81
- Somers81
- West Glacier81
- Bear Dance80
- Browning80
- Harlowton80
- Marion80
- Polebridge80
- Sanders County80
- South Browning80
- Alberton79
- Boulder79
- Great Falls79
- Clinton78
- Ulm78
- Big Timber77
- East Helena77
- Lewistown77
- Ryegate77
- Woods Bay77
- Arlee76
- Churchill76
- Lindisfarne76
- Roundup76
- Rudyard76
- St. Ignatius76
- Sweet Grass County76
- West Yellowstone76
- Winnett76
- Columbus75
- Gallatin County75
- Helena75
- Hot Springs75
- Judith Basin County75
- Park City75
- Shepherd75
- Dillon74
- Hardin74
- Hysham74
- Livingston74
- Park County74
- Pryor74
- Red Lodge74
- Bozeman73
- Bridger CDP73
- Crow Agency73
- Chinook72
- Colstrip72
- Forsyth72
- Froid72
- Deer Lodge71
- Fort Belknap Agency71
- Frenchtown71
- Helena Valley West Central71
- Jordan71
- Lame Deer71
- Plains71
- Plentywood71
- Richland71
- Scobey71
- Sidney71
- Stillwater County71
- Superior71
- Birney70
- Malta70
- Sedan70
- Circle69
- Glendive69
- Heart Butte69
- Wolf Point69
- Glasgow68
- Miles City68
- Terry68
- Cascade67
- Lake County67
- Wibaux66
- Polson65
- Baker64
- Big Horn County64
- Custer County64
- Absarokee63
- Broadus62
- Dixon62
- Ekalaka62
- Laurel62
- Ronan61
- St. Marie61
- Culbertson60
- Havre North60
- Hill County60
- Roberts60
- Roosevelt County59
- West Glendive58
- Havre57
- Lewis and Clark County57
- Petroleum County56
- Billings54
- Lockwood54
- Phillips County49
- Rosebud County49
