Air quality in Montana
Air quality index (AQI⁺) and PM2.5 air pollution in Montana • 05:13, 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?
- Lincoln County122
- Noxon114
- Cascade County110
- Libby110
- Stevensville100
- Victor100
- Sula99
- Troy99
- Chester98
- Darby98
- Lolo98
- Missoula County97
- Orchard Homes97
- Ravalli County97
- Clancy96
- Teton County96
- Anaconda-Deer Lodge County95
- Big Sky95
- Bigfork95
- Bonner-West Riverside95
- Conrad95
- East Missoula95
- Helena West Side95
- Philipsburg95
- St. Ignatius95
- Walkerville95
- Wisdom95
- Wye95
- Helena Valley Northeast94
- Helena Valley Northwest94
- Helena Valley Southeast94
- Ulm94
- Whitehall94
- Glacier County93
- Montana City93
- Piltzville93
- Butte92
- Craig92
- East Glacier Park Village92
- Gardiner92
- Potomac92
- Sun Prairie92
- Townsend92
- Trout Creek92
- Lincoln91
- Malmstrom Air Force Base91
- North Browning91
- Fort Benton90
- Judith Basin County90
- Missoula90
- Ravalli90
- Four Corners89
- Geyser89
- Boulder88
- Charlo88
- Flathead County88
- Pablo88
- South Browning88
- Browning87
- Shelby87
- Columbia Falls86
- Stanford86
- Toole County86
- Arlee85
- Beaverhead County85
- Three Forks85
- White Sulphur Springs85
- Alberton84
- Choteau84
- Amsterdam83
- Belgrade83
- Big Arm83
- Manhattan83
- Seeley Lake83
- Woods Bay83
- Corvallis82
- Dayton82
- Eureka82
- Somers82
- Churchill81
- Coram81
- Ennis81
- Gallatin County81
- Madison County81
- Martin City81
- Wilsall81
- Bozeman80
- Cascade80
- Evergreen80
- Hamilton80
- Rudyard80
- Sanders County80
- Thompson Falls80
- Virginia City80
- West Glacier80
- Great Falls79
- Helena Valley West Central79
- Marion79
- Polebridge79
- Big Timber78
- Cut Bank78
- Harlowton78
- Helena78
- West Yellowstone78
- Whitefish78
- Bridger CDP77
- Clinton77
- Columbus77
- Dillon77
- Lakeside77
- East Helena76
- Heart Butte76
- Livingston76
- Red Lodge76
- Ryegate76
- Shepherd76
- Chinook75
- Pryor75
- Bear Dance74
- Circle74
- Forsyth74
- Fort Belknap Agency74
- Glendive74
- Hysham74
- Miles City74
- Park County74
- Richland74
- Roundup74
- Sedan74
- Terry74
- Wolf Point74
- Colstrip73
- Custer County73
- Glasgow73
- Hardin73
- Jordan73
- Kalispell73
- Ronan73
- Scobey73
- Birney72
- Crow Agency72
- Froid72
- Lame Deer72
- Malta72
- Broadus71
- Sidney71
- Winnett71
- Plentywood70
- Wibaux69
- Frenchtown68
- Polson67
- Superior67
- Sweet Grass County67
- Plains66
- Dixon65
- Hot Springs65
- Lewis and Clark County65
- Lewistown65
- Baker64
- Ekalaka64
- Lake County64
- Laurel64
- St. Marie64
- Lindisfarne63
- Havre North62
- Absarokee61
- Roosevelt County61
- Deer Lodge60
- Culbertson58
- Stillwater County57
- West Glendive57
- Billings56
- Park City56
- Phillips County56
- Big Horn County55
- Havre55
- Hill County55
- Roberts55
- Lockwood54
- Petroleum County53
- Rosebud County41
