Air quality in Montana
Air quality index (AQI⁺) and PM2.5 air pollution in Montana • 12:22, Aug 07
Live most polluted city ranking
Real-time Montana most polluted city ranking
Wildfires in Montana
Real-time information
Active fires
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Learn more about global air quality
Which is the most polluted city in Montana?
- Dillon225
- Lindisfarne190
- Polson190
- Lake County187
- Woods Bay184
- Bear Dance182
- Seeley Lake182
- Libby179
- Lincoln County179
- Big Sky177
- Bigfork177
- Arlee176
- Lakeside176
- Plains173
- Troy173
- Missoula County171
- St. Ignatius171
- Clinton170
- East Helena169
- Flathead County169
- Kalispell167
- Hot Springs166
- Eureka164
- Piltzville164
- Dixon163
- Lolo163
- Evergreen162
- Marion162
- Big Arm161
- Dayton161
- Missoula161
- Somers161
- Coram160
- Martin City160
- Montana City160
- Polebridge160
- Columbia Falls159
- Four Corners159
- Pablo159
- Sanders County159
- West Glacier159
- Whitefish159
- Charlo158
- Noxon158
- Thompson Falls157
- Ravalli156
- Bonner-West Riverside155
- East Missoula155
- Wye155
- Orchard Homes154
- Potomac154
- Anaconda-Deer Lodge County153
- Ronan153
- Stevensville153
- Boulder152
- Victor152
- Wisdom152
- Deer Lodge150
- Superior149
- Lewis and Clark County148
- Trout Creek148
- Lincoln146
- Sula145
- Walkerville145
- Corvallis143
- Helena West Side141
- Clancy140
- East Glacier Park Village140
- Helena Valley Northwest140
- Whitehall140
- Helena Valley Northeast139
- Helena Valley Southeast139
- Bridger CDP138
- Frenchtown138
- Madison County136
- Virginia City136
- Craig135
- Ennis134
- Townsend134
- Gardiner133
- Helena133
- Three Forks133
- Absarokee132
- Sedan132
- Manhattan130
- South Browning130
- Amsterdam129
- Browning129
- Darby128
- Ravalli County127
- Belgrade126
- Teton County126
- White Sulphur Springs124
- Big Timber123
- Wilsall123
- Harlowton121
- Helena Valley West Central121
- Alberton118
- Sun Prairie118
- Big Horn County115
- Ryegate112
- Malmstrom Air Force Base110
- Crow Agency109
- Park County109
- Columbus108
- Hardin108
- Pryor108
- Birney107
- Hamilton107
- Lame Deer107
- Laurel107
- Park City107
- Roberts107
- Shepherd105
- Conrad104
- Red Lodge104
- Stillwater County104
- Lockwood103
- Beaverhead County102
- Gallatin County102
- Philipsburg102
- Billings99
- Colstrip99
- Roundup98
- West Yellowstone98
- Geyser97
- Stanford96
- Livingston95
- Bozeman94
- Churchill94
- Sweet Grass County94
- Hysham93
- Lewistown92
- Butte90
- Broadus89
- Forsyth86
- Winnett82
- Fort Benton81
- Ekalaka80
- Rosebud County76
- Custer County75
- Cascade County74
- Miles City73
- Cascade68
- Baker65
- Judith Basin County64
- Ulm64
- Rudyard62
- Jordan61
- Terry59
- Great Falls57
- Havre North56
- Chinook55
- Fort Belknap Agency55
- Malta53
- Glendive52
- North Browning52
- Wibaux52
- Circle50
- Heart Butte50
- Choteau49
- Glacier County49
- Glasgow42
- Sidney36
- Petroleum County34
- Richland32
- Chester31
- Froid28
- Wolf Point27
- Havre24
- West Glendive23
- Plentywood21
- Shelby21
- Cut Bank19
- Hill County19
- Culbertson17
- Phillips County16
- Roosevelt County16
- Scobey16
- St. Marie11
- Toole County10
