Air quality in Montana
Air quality index (AQI⁺) and PM2.5 air pollution in Montana • 07:33, Jul 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?
- Flathead County144
- Whitefish142
- Kalispell140
- Cascade County119
- Lincoln County113
- Columbia Falls107
- Seeley Lake107
- Arlee106
- Lakeside99
- Piltzville99
- Ulm96
- Bear Dance95
- Missoula94
- Missoula County94
- Eureka93
- Frenchtown93
- Lindisfarne93
- Plains93
- Cascade92
- Alberton90
- Orchard Homes90
- Polebridge90
- St. Ignatius90
- Superior89
- Judith Basin County88
- West Glacier88
- Coram87
- Martin City86
- Browning85
- Corvallis85
- East Glacier Park Village85
- Sanders County84
- South Browning84
- Victor84
- Darby83
- Evergreen83
- Lolo83
- Stevensville83
- Bonner-West Riverside82
- Dayton82
- East Missoula82
- Marion82
- Ravalli County82
- Somers82
- Wye82
- Big Arm81
- Charlo81
- Clinton81
- Ravalli81
- Culbertson80
- Libby80
- Potomac80
- Bigfork79
- Troy79
- Noxon78
- Trout Creek78
- Woods Bay78
- Conrad77
- Cut Bank77
- Lake County77
- Pablo77
- Hot Springs76
- Lincoln76
- Philipsburg76
- Thompson Falls76
- Glacier County75
- Polson75
- Sula75
- Dixon74
- Plentywood73
- Anaconda-Deer Lodge County72
- Lewistown72
- Scobey72
- Butte71
- Craig71
- Great Falls71
- St. Marie71
- Froid70
- Helena Valley Northwest70
- Helena West Side70
- Ronan70
- Hamilton69
- East Helena68
- Heart Butte68
- Helena68
- Walkerville68
- West Glendive68
- Wisdom68
- Choteau67
- Helena Valley Northeast67
- Lewis and Clark County67
- North Browning67
- Shelby67
- Chester66
- Helena Valley Southeast66
- Petroleum County66
- Roosevelt County66
- Sun Prairie66
- Teton County66
- Billings65
- Clancy65
- Richland65
- Sidney65
- Helena Valley West Central64
- Lockwood64
- Malmstrom Air Force Base64
- Rudyard64
- Toole County64
- Fort Benton63
- Montana City63
- Rosebud County63
- Wolf Point63
- Chinook62
- Deer Lodge62
- Circle61
- Fort Belknap Agency61
- Geyser61
- Glasgow61
- Glendive61
- Hill County61
- Malta61
- Wibaux61
- Baker60
- Boulder60
- Custer County60
- Ekalaka60
- Jordan60
- Miles City60
- Stanford60
- Terry60
- Whitehall60
- Colstrip59
- Forsyth59
- Havre59
- Hysham59
- Roundup59
- Townsend59
- White Sulphur Springs59
- Winnett59
- Birney58
- Broadus58
- Crow Agency58
- Hardin58
- Harlowton58
- Lame Deer58
- Manhattan58
- Ryegate58
- Shepherd58
- Three Forks58
- Amsterdam57
- Belgrade57
- Wilsall57
- Ennis56
- Laurel56
- Madison County56
- Pryor56
- Virginia City56
- Big Timber55
- Columbus55
- Absarokee54
- Gardiner54
- Red Lodge54
- Sweet Grass County54
- Bridger CDP53
- Four Corners53
- Park City53
- West Yellowstone53
- Gallatin County52
- Phillips County50
- Big Sky48
- Bozeman48
- Sedan44
- Stillwater County44
- Park County43
- Churchill42
- Livingston37
- Dillon30
- Roberts27
- Beaverhead County22
- Big Horn County7
