Montana
Postal abbreviation MT. 404 ZIP codes across 56 counties.
| Population | 1,116,875 |
|---|---|
| Postal abbreviation | MT |
| ZIP codes | 404 ZIP codes → |
| Area codes | 406 |
| Time zone | Mountain |
| Counties | 56 |
Largest cities by population
Billings · 119,434Missoula · 76,514Great Falls · 60,329Bozeman · 56,114Helena · 33,639Kalispell · 28,504
Largest counties by population
Yellowstone County · 168,957Gallatin County · 124,074Missoula County · 120,672Flathead County · 110,695Cascade County · 84,606Lewis and Clark County · 73,464Ravalli County · 46,727Silver Bow County · 35,785Lake County · 32,561Lincoln County · 21,175
Counties in Montana
Beaverhead CountyBig Horn CountyBlaine CountyBroadwater CountyCarbon CountyCarter CountyCascade CountyChouteau CountyCuster CountyDaniels CountyDawson CountyDeer Lodge CountyFallon CountyFergus CountyFlathead CountyGallatin CountyGarfield CountyGlacier CountyGolden Valley CountyGranite CountyHill CountyJefferson CountyJudith Basin CountyLake CountyLewis and Clark CountyLiberty CountyLincoln CountyMadison CountyMcCone CountyMeagher CountyMineral CountyMissoula CountyMusselshell CountyPark CountyPetroleum CountyPhillips CountyPondera CountyPowder River CountyPowell CountyPrairie CountyRavalli CountyRichland CountyRoosevelt CountyRosebud CountySanders CountySheridan CountySilver Bow CountyStillwater CountySweet Grass CountyTeton CountyToole CountyTreasure CountyValley CountyWheatland CountyWibaux CountyYellowstone County
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.