Air quality in Montana
Air quality index (AQI⁺) and PM2.5 air pollution in Montana • 13:17, 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?
- Columbia Falls130
- Libby128
- Whitefish122
- Trout Creek120
- Montana City119
- Noxon117
- Troy116
- Darby113
- Flathead County112
- Lincoln County112
- Thompson Falls111
- Kalispell106
- Ravalli County106
- Pablo99
- Philipsburg97
- Anaconda-Deer Lodge County96
- Chester96
- Corvallis96
- Sula96
- Clancy95
- Hamilton95
- Hot Springs95
- Stevensville95
- Victor95
- Walkerville95
- Whitehall95
- Helena Valley Southeast94
- Helena West Side94
- Lakeside94
- Townsend94
- Bonner-West Riverside93
- East Missoula93
- Helena Valley Northeast93
- Helena Valley Northwest93
- Lolo93
- Three Forks93
- Wisdom93
- Frenchtown92
- Orchard Homes92
- Plains92
- Potomac92
- White Sulphur Springs92
- Big Sky91
- Shelby91
- Stanford91
- Four Corners90
- Geyser90
- Manhattan90
- Wye90
- Amsterdam89
- Craig89
- Ennis89
- Lincoln89
- Madison County89
- North Browning89
- Virginia City89
- Fort Benton88
- Malmstrom Air Force Base88
- Sun Prairie88
- Belgrade87
- Glacier County87
- Harlowton87
- Missoula County87
- Choteau86
- Bigfork85
- Teton County85
- Deer Lodge83
- Eureka83
- Lindisfarne83
- Rudyard83
- Boulder82
- Bozeman82
- Conrad82
- Cut Bank82
- Piltzville82
- Ryegate82
- Wilsall82
- Bear Dance81
- Churchill81
- Missoula81
- Polebridge81
- Roundup81
- Beaverhead County80
- Ravalli80
- Sanders County80
- Alberton79
- Big Timber79
- Bridger CDP79
- Columbus79
- Coram79
- Evergreen79
- Gallatin County79
- Lake County79
- Marion79
- Martin City79
- Polson79
- Seeley Lake79
- Shepherd79
- Superior79
- Toole County79
- West Glacier79
- Woods Bay79
- Livingston78
- Somers78
- Ulm78
- Winnett78
- Big Arm77
- Browning77
- Charlo77
- Dayton77
- East Glacier Park Village77
- Gardiner77
- Park County77
- Pryor77
- Red Lodge77
- South Browning77
- Hardin76
- Hysham76
- West Yellowstone76
- Arlee75
- Crow Agency75
- East Helena75
- Park City75
- Sweet Grass County75
- Chinook74
- Jordan74
- Sidney74
- Froid73
- Helena73
- Richland73
- St. Ignatius73
- Big Horn County72
- Cascade County72
- Colstrip72
- Forsyth72
- Lame Deer72
- Plentywood72
- Wolf Point72
- Circle71
- Clinton71
- Glasgow71
- Helena Valley West Central71
- Laurel71
- Scobey71
- Absarokee70
- Fort Belknap Agency70
- Malta70
- Heart Butte69
- Sedan69
- Birney68
- Judith Basin County68
- West Glendive68
- Dillon67
- Havre67
- Wibaux67
- Baker66
- Glendive66
- Roberts66
- Stillwater County66
- Butte65
- Custer County65
- Dixon65
- Ekalaka65
- Miles City65
- Terry65
- Broadus64
- Lewistown64
- Billings63
- Cascade63
- Hill County62
- Culbertson60
- Great Falls59
- Havre North59
- Ronan59
- St. Marie59
- Roosevelt County57
- Lewis and Clark County55
- Lockwood55
- Petroleum County55
- Rosebud County53
- Phillips County52
