Air quality in Montana
Air quality index (AQI⁺) and PM2.5 air pollution in Montana • 18:11, Jul 06
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?
- Montana City145
- Ennis55
- Virginia City55
- West Yellowstone55
- Amsterdam54
- Belgrade54
- Manhattan54
- Three Forks53
- Anaconda-Deer Lodge County52
- Stevensville52
- Sula52
- Victor52
- Whitehall52
- Wisdom52
- Philipsburg50
- Walkerville49
- Lincoln County47
- Great Falls46
- Libby46
- Lewistown44
- Superior43
- Columbia Falls42
- Noxon42
- Lewis and Clark County40
- Thompson Falls40
- Wilsall40
- Flathead County39
- Missoula39
- Troy39
- Butte38
- Trout Creek38
- West Glacier38
- West Glendive38
- Whitefish38
- Bear Dance37
- Bigfork36
- Gardiner36
- Hamilton36
- Glacier County35
- Kalispell34
- East Missoula32
- Heart Butte32
- Lakeside32
- Boulder31
- Lockwood31
- Plains31
- Pryor31
- St. Ignatius31
- Big Sky30
- Bonner-West Riverside30
- Columbus29
- Cut Bank29
- Darby29
- Hill County29
- Lolo29
- Pablo29
- Roosevelt County29
- Wye29
- Alberton28
- Arlee28
- Chester28
- North Browning28
- Woods Bay28
- Choteau27
- Deer Lodge27
- East Helena27
- Frenchtown27
- Havre27
- Lindisfarne27
- Park City27
- Piltzville27
- Potomac27
- Ravalli County27
- Shelby27
- Corvallis26
- Culbertson26
- Helena26
- Livingston26
- Missoula County26
- Roberts26
- Seeley Lake26
- Dillon25
- Townsend25
- Big Timber24
- Hot Springs24
- Lake County24
- Orchard Homes24
- Phillips County24
- Sweet Grass County24
- Eureka23
- Helena Valley West Central23
- Marion23
- Ravalli23
- Big Arm22
- Billings22
- Cascade22
- Charlo22
- Churchill22
- Clancy22
- Clinton22
- Dayton22
- Laurel22
- Lincoln22
- Sanders County22
- St. Marie22
- Stillwater County22
- Ulm22
- Birney21
- Bozeman21
- Crow Agency21
- Evergreen21
- Gallatin County21
- Hardin21
- Park County21
- Polebridge21
- Somers21
- Colstrip20
- Coram20
- Hysham20
- Lame Deer20
- Martin City20
- Shepherd20
- Browning19
- Conrad19
- Craig19
- Dixon19
- East Glacier Park Village19
- Harlowton19
- Helena Valley Northeast19
- Helena Valley Northwest19
- Helena Valley Southeast19
- Helena West Side19
- Madison County19
- Polson19
- Ronan19
- Rosebud County19
- Roundup19
- Ryegate19
- South Browning19
- Cascade County18
- Froid18
- Plentywood18
- Richland18
- Scobey18
- Sidney18
- Sun Prairie18
- Winnett18
- Wolf Point18
- Absarokee17
- Glasgow17
- Judith Basin County17
- Sedan17
- Teton County17
- Toole County17
- White Sulphur Springs17
- Baker16
- Big Horn County16
- Broadus16
- Custer County16
- Ekalaka16
- Forsyth16
- Four Corners16
- Glendive16
- Miles City16
- Terry16
- Wibaux16
- Malmstrom Air Force Base15
- Circle14
- Geyser14
- Stanford14
- Red Lodge13
- Beaverhead County12
- Fort Benton12
- Jordan12
- Rudyard11
- Chinook10
- Fort Belknap Agency10
- Malta10
- Bridger CDP9
