Montana Zip Codes
345 zip codes in Montana. Capital: Helena. Nickname: Treasure State.
Quick Facts
- Total ZIP codes
- 345
- Counties covered
- 56
- Cities and places
- 296
- Top cities by ZIP count
- Missoula, Billings, Miles City
- Time zone
- Mountain Time (MT)
- Capital
- Helena
Top ZIP Rankings in Montana
Ranked top 10 lists by household income, population, and home value.
About Montana Zip Codes
Montana (MT), known as the Treasure State, with its capital in Helena, contains 345 unique USPS ZIP codes distributed across 56 counties and 296 distinct cities and places. The state observes Mountain Time (MT). ZIP codes here cover residential addresses, PO box ranges, business districts, and unique large-volume customer codes.
The cities with the most ZIP codes in Montana are Missoula, Billings, Miles City, Molt, Great Falls. Larger metro areas use multiple ZIP codes to separate neighborhoods, business districts, and PO box ranges. The counties with the highest ZIP density are Cascade County, Flathead County, Yellowstone County, Missoula County, Madison County, reflecting both population and geographic spread.
Montana ZIP codes range from 59001 to 59937. The first digit reflects the USPS national region and the next two narrow down to a sectional center facility that routes mail across the state. Use the lists below to browse every ZIP code by county or by city, or jump straight to a ZIP for population, income, housing, weather, and cost of living details.
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Browse by County
- Beaverhead County (6)
- Big Horn County (10)
- Blaine County (7)
- Broadwater County (2)
- Carbon County (10)
- Carter County (3)
- Cascade County (15)
- Chouteau County (7)
- Custer County (4)
- Daniels County (4)
- Dawson County (4)
- Deer Lodge County (2)
- Fallon County (3)
- Fergus County (8)
- Flathead County (15)
- Gallatin County (8)
- Garfield County (5)
- Glacier County (4)
- Golden Valley County (2)
- Granite County (3)
- Hill County (7)
- Jefferson County (6)
- Judith Basin County (5)
- Lake County (11)
- Lewis and Clark County (9)
- Liberty County (4)
- Lincoln County (7)
- Madison County (11)
- McCone County (3)
- Meagher County (3)
- Mineral County (4)
- Missoula County (14)
- Musselshell County (3)
- Park County (8)
- Petroleum County (1)
- Phillips County (6)
- Pondera County (5)
- Powder River County (4)
- Powell County (7)
- Prairie County (2)
- Ravalli County (9)
- Richland County (4)
- Roosevelt County (7)
- Rosebud County (8)
- Sanders County (8)
- Sheridan County (8)
- Silver Bow County (5)
- Stillwater County (7)
- Sweet Grass County (4)
- Teton County (6)
- Toole County (6)
- Treasure County (3)
- Valley County (9)
- Wheatland County (4)
- Wibaux County (1)
- Yellowstone County (14)
Browse by Top Cities
- Missoula (5)
- Billings (4)
- Miles City (4)
- Molt (3)
- Great Falls (3)
- Deer Lodge (3)
- Columbia Falls (3)
- Big Timber (2)
- Clyde Park (2)
- Cooke City (2)
- Fishtail (2)
- Hysham (2)
- Winnett (2)
- Flaxville (2)
- Froid (2)
- Glasgow (2)
- Nashua (2)
- Forsyth (2)
- Plevna (2)
- Carter (2)
- Conrad (2)
- Lewistown (2)
- Fort Benton (2)
- Hobson (2)
- Kevin (2)
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All Zip Codes in Montana
Beaverhead County (6 ZIP codes)
| Zip Code | City |
|---|---|
| 59725 | Dillon |
| 59736 | Jackson |
| 59739 | Lima |
| 59746 | Dillon |
| 59761 | Wisdom |
| 59762 | Wise River |
Big Horn County (10 ZIP codes)
| Zip Code | City |
|---|---|
| 59016 | Busby |
| 59022 | Crow Agency |
| 59025 | Decker |
| 59031 | Garryowen |
| 59034 | Hardin |
| 59035 | Fort Smith |
| 59050 | Lodge Grass |
| 59066 | Pryor |
| 59075 | Saint Xavier |
| 59089 | Wyola |
Blaine County (7 ZIP codes)
| Zip Code | City |
|---|---|
| 59523 | Chinook |
| 59526 | Harlem |
| 59527 | Hays |
| 59529 | Hogeland |
| 59535 | Chinook |
| 59542 | Turner |
| 59547 | Zurich |
Broadwater County (2 ZIP codes)
| Zip Code | City |
|---|---|
| 59643 | Toston |
| 59644 | Townsend |
Carbon County (10 ZIP codes)
| Zip Code | City |
|---|---|
| 59007 | Bearcreek |
| 59008 | Belfry |
| 59013 | Boyd |
| 59014 | Bridger |
| 59026 | Edgar |
| 59029 | Fromberg |
| 59041 | Joliet |
| 59068 | Red Lodge |
| 59070 | Roberts |
| 59071 | Roscoe |
Carter County (3 ZIP codes)
| Zip Code | City |
|---|---|
| 59311 | Alzada |
| 59324 | Ekalaka |
| 59332 | Hammond |
Cascade County (15 ZIP codes)
Chouteau County (7 ZIP codes)
| Zip Code | City |
|---|---|
| 59420 | Carter |
| 59440 | Carter |
| 59442 | Fort Benton |
| 59446 | Geraldine |
| 59450 | Highwood |
| 59460 | Fort Benton |
| 59520 | Big Sandy |
Custer County (4 ZIP codes)
| Zip Code | City |
|---|---|
| 59301 | Miles City |
| 59336 | Plevna |
| 59338 | Miles City |
| 59351 | Volborg |
Daniels County (4 ZIP codes)
| Zip Code | City |
|---|---|
| 59222 | Flaxville |
| 59253 | Peerless |
| 59263 | Scobey |
| 59276 | Whitetail |
Dawson County (4 ZIP codes)
| Zip Code | City |
|---|---|
| 59259 | Richey |
| 59315 | Bloomfield |
| 59330 | Glendive |
| 59339 | Lindsay |
Deer Lodge County (2 ZIP codes)
| Zip Code | City |
|---|---|
| 59711 | Anaconda |
| 59756 | Warm Springs |
Fallon County (3 ZIP codes)
| Zip Code | City |
|---|---|
| 59313 | Baker |
| 59344 | Plevna |
| 59354 | Willard |
Fergus County (8 ZIP codes)
| Zip Code | City |
|---|---|
| 59032 | Grass Range |
| 59424 | Coffee Creek |
| 59430 | Denton |
| 59441 | Lewistown |
| 59451 | Hilger |
| 59457 | Lewistown |
| 59464 | Moore |
| 59471 | Roy |
Flathead County (15 ZIP codes)
| Zip Code | City |
|---|---|
| 59901 | Kalispell |
| 59911 | Bigfork |
| 59912 | Columbia Falls |
| 59913 | Coram |
| 59916 | West Glacier |
| 59919 | Hungry Horse |
| 59920 | Kila |
| 59922 | Lakeside |
| 59925 | Marion |
| 59926 | Columbia Falls |
| 59927 | Olney |
| 59928 | Columbia Falls |
| 59932 | Somers |
| 59936 | West Glacier |
| 59937 | Whitefish |
Gallatin County (8 ZIP codes)
Garfield County (5 ZIP codes)
| Zip Code | City |
|---|---|
| 59058 | Winnett |
| 59077 | Sand Springs |
| 59318 | Brusett |
| 59322 | Cohagen |
| 59337 | Jordan |
Glacier County (4 ZIP codes)
| Zip Code | City |
|---|---|
| 59411 | Babb |
| 59417 | Browning |
| 59427 | Cut Bank |
| 59434 | East Glacier Park |
Golden Valley County (2 ZIP codes)
| Zip Code | City |
|---|---|
| 59046 | Lavina |
| 59074 | Ryegate |
Granite County (3 ZIP codes)
| Zip Code | City |
|---|---|
| 59832 | Drummond |
| 59837 | Hall |
| 59858 | Philipsburg |
Hill County (7 ZIP codes)
| Zip Code | City |
|---|---|
| 59501 | Havre |
| 59521 | Box Elder |
| 59525 | Gildford |
| 59528 | Hingham |
| 59530 | Inverness |
| 59532 | Kremlin |
| 59540 | Rudyard |
Jefferson County (6 ZIP codes)
| Zip Code | City |
|---|---|
| 59631 | Basin |
| 59632 | Boulder |
| 59634 | Clancy |
| 59638 | Jefferson City |
| 59721 | Cardwell |
| 59759 | Whitehall |
Judith Basin County (5 ZIP codes)
| Zip Code | City |
|---|---|
| 59447 | Geyser |
| 59452 | Hobson |
| 59462 | Hobson |
| 59469 | Raynesford |
| 59479 | Stanford |
Lake County (11 ZIP codes)
| Zip Code | City |
|---|---|
| 59821 | Arlee |
| 59824 | Charlo |
| 59855 | Pablo |
| 59860 | Polson |
| 59864 | Ronan |
| 59865 | Saint Ignatius |
| 59910 | Big Arm |
| 59914 | Dayton |
| 59915 | Elmo |
| 59929 | Dayton |
| 59931 | Rollins |
Lewis and Clark County (9 ZIP codes)
Liberty County (4 ZIP codes)
| Zip Code | City |
|---|---|
| 59444 | Galata |
| 59522 | Chester |
| 59531 | Joplin |
| 59545 | Whitlash |
Lincoln County (7 ZIP codes)
| Zip Code | City |
|---|---|
| 59917 | Eureka |
| 59918 | Fortine |
| 59923 | Libby |
| 59930 | Rexford |
| 59933 | Stryker |
| 59934 | Trego |
| 59935 | Troy |
Madison County (11 ZIP codes)
| Zip Code | City |
|---|---|
| 59710 | Alder |
| 59720 | Cameron |
| 59729 | Ennis |
| 59735 | Harrison |
| 59740 | Mc Allister |
| 59745 | Norris |
| 59747 | Pony |
| 59749 | Sheridan |
| 59751 | Silver Star |
| 59754 | Twin Bridges |
| 59755 | Virginia City |
McCone County (3 ZIP codes)
| Zip Code | City |
|---|---|
| 59214 | Brockway |
| 59215 | Circle |
| 59274 | Vida |
Meagher County (3 ZIP codes)
| Zip Code | City |
|---|---|
| 59053 | Martinsdale |
| 59642 | Ringling |
| 59645 | White Sulphur Springs |
Mineral County (4 ZIP codes)
| Zip Code | City |
|---|---|
| 59842 | De Borgia |
| 59866 | Saint Regis |
| 59867 | Saint Regis |
| 59872 | Superior |
Missoula County (14 ZIP codes)
Musselshell County (3 ZIP codes)
| Zip Code | City |
|---|---|
| 59054 | Melstone |
| 59059 | Musselshell |
| 59072 | Roundup |
Park County (8 ZIP codes)
| Zip Code | City |
|---|---|
| 59018 | Clyde Park |
| 59020 | Cooke City |
| 59027 | Emigrant |
| 59030 | Gardiner |
| 59047 | Livingston |
| 59065 | Pray |
| 59081 | Cooke City |
| 59086 | Clyde Park |
Petroleum County (1 ZIP codes)
| Zip Code | City |
|---|---|
| 59087 | Winnett |
Phillips County (6 ZIP codes)
| Zip Code | City |
|---|---|
| 59261 | Saco |
| 59524 | Dodson |
| 59537 | Loring |
| 59538 | Malta |
| 59544 | Whitewater |
| 59546 | Zortman |
Pondera County (5 ZIP codes)
| Zip Code | City |
|---|---|
| 59416 | Brady |
| 59425 | Conrad |
| 59432 | Dupuyer |
| 59448 | Heart Butte |
| 59486 | Valier |
Powder River County (4 ZIP codes)
| Zip Code | City |
|---|---|
| 59062 | Otter |
| 59314 | Biddle |
| 59317 | Broadus |
| 59343 | Miles City |
Powell County (7 ZIP codes)
| Zip Code | City |
|---|---|
| 59713 | Avon |
| 59722 | Deer Lodge |
| 59728 | Elliston |
| 59731 | Deer Lodge |
| 59733 | Deer Lodge |
| 59843 | Helmville |
| 59854 | Ovando |
Prairie County (2 ZIP codes)
| Zip Code | City |
|---|---|
| 59326 | Fallon |
| 59349 | Terry |
Ravalli County (9 ZIP codes)
| Zip Code | City |
|---|---|
| 59827 | Conner |
| 59828 | Corvallis |
| 59829 | Darby |
| 59833 | Florence |
| 59840 | Hamilton |
| 59841 | Hamilton |
| 59870 | Stevensville |
| 59871 | Sula |
| 59875 | Victor |
Richland County (4 ZIP codes)
| Zip Code | City |
|---|---|
| 59217 | Crane |
| 59243 | Lambert |
| 59262 | Savage |
| 59270 | Sidney |
Roosevelt County (7 ZIP codes)
| Zip Code | City |
|---|---|
| 59201 | Wolf Point |
| 59212 | Bainville |
| 59213 | Brockton |
| 59218 | Culbertson |
| 59226 | Froid |
| 59242 | Froid |
| 59255 | Poplar |
Rosebud County (8 ZIP codes)
| Zip Code | City |
|---|---|
| 59003 | Ashland |
| 59012 | Birney |
| 59039 | Ingomar |
| 59043 | Lame Deer |
| 59323 | Colstrip |
| 59327 | Forsyth |
| 59333 | Miles City |
| 59347 | Forsyth |
Sanders County (8 ZIP codes)
| Zip Code | City |
|---|---|
| 59831 | Dixon |
| 59844 | Heron |
| 59845 | Hot Springs |
| 59848 | Hot Springs |
| 59853 | Noxon |
| 59859 | Plains |
| 59873 | Thompson Falls |
| 59874 | Trout Creek |
Sheridan County (8 ZIP codes)
| Zip Code | City |
|---|---|
| 59211 | Antelope |
| 59219 | Dagmar |
| 59247 | Medicine Lake |
| 59252 | Outlook |
| 59254 | Plentywood |
| 59257 | Flaxville |
| 59258 | Reserve |
| 59275 | Westby |
Silver Bow County (5 ZIP codes)
| Zip Code | City |
|---|---|
| 59701 | Butte |
| 59727 | Divide |
| 59743 | Melrose |
| 59748 | Ramsay |
| 59750 | Butte |
Stillwater County (7 ZIP codes)
| Zip Code | City |
|---|---|
| 59001 | Absarokee |
| 59019 | Columbus |
| 59028 | Fishtail |
| 59061 | Fishtail |
| 59063 | Park City |
| 59067 | Molt |
| 59069 | Reed Point |
Sweet Grass County (4 ZIP codes)
| Zip Code | City |
|---|---|
| 59011 | Big Timber |
| 59033 | Greycliff |
| 59052 | Mc Leod |
| 59055 | Big Timber |
Teton County (6 ZIP codes)
| Zip Code | City |
|---|---|
| 59419 | Bynum |
| 59422 | Choteau |
| 59433 | Dutton |
| 59436 | Fairfield |
| 59467 | Pendroy |
| 59468 | Power |
Toole County (6 ZIP codes)
| Zip Code | City |
|---|---|
| 59454 | Kevin |
| 59456 | Conrad |
| 59466 | Kevin |
| 59474 | Shelby |
| 59482 | Sunburst |
| 59484 | Sweet Grass |
Treasure County (3 ZIP codes)
| Zip Code | City |
|---|---|
| 59010 | Bighorn |
| 59038 | Hysham |
| 59076 | Hysham |
Valley County (9 ZIP codes)
| Zip Code | City |
|---|---|
| 59223 | Fort Peck |
| 59225 | Frazer |
| 59230 | Glasgow |
| 59231 | Glasgow |
| 59241 | Hinsdale |
| 59244 | Nashua |
| 59248 | Nashua |
| 59250 | Opheim |
| 59260 | Richland |
Wheatland County (4 ZIP codes)
| Zip Code | City |
|---|---|
| 59036 | Harlowton |
| 59078 | Shawmut |
| 59085 | Two Dot |
| 59453 | Judith Gap |
Wibaux County (1 ZIP codes)
| Zip Code | City |
|---|---|
| 59353 | Wibaux |
Yellowstone County (14 ZIP codes)
Frequently Asked Questions
How many ZIP codes does Montana have?
Montana has 345 ZIP codes spanning 296 cities and places across 56 counties.
What are the major cities in Montana?
The cities with the most ZIP codes in Montana are Missoula, Billings, Miles City, Molt, Great Falls. Larger metro areas use multiple ZIP codes to cover individual neighborhoods.
Which county has the most ZIP codes in Montana?
Cascade County has the most with 15 ZIP codes. The next largest counties are Flathead County, Yellowstone County, Missoula County, Madison County.
What time zone is Montana in?
Montana observes Mountain Time (MT).
What is the smallest ZIP code number in Montana?
The lowest ZIP code in Montana is 59001.
What is the largest ZIP code number in Montana?
The highest ZIP code in Montana is 59937.
How are ZIP codes structured in Montana?
USPS ZIP codes are five digit numbers. The first digit indicates a broad U.S. region, the second and third narrow to a sectional center facility, and the last two identify a specific post office or delivery area. Montana ZIP codes typically begin with "5".
What states border Montana?
Montana borders Idaho, Wyoming, South Dakota, North Dakota.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.