| Place Name | County | Total ZIP Codes | Population (2022) |
|---|
| Absarokee | Stillwater County | 1 | 1,093 |
| Acton | Yellowstone County | 1 | 76 |
| Agency | Hill County | 1 | |
| Alberton | Mineral County | 1 | 452 |
| Alder | Madison County | 1 | 138 |
| Alzada | Carter County | 1 | 23 |
|
| Amsterdam | Gallatin County | 1 | 193 |
| Amsterdam-Churchill | Gallatin County | 1 | |
| Anaconda | Deer Lodge County | 1 | 9,277 |
| Angela | Rosebud County | 1 | |
| Antelope | Sheridan County | 1 | 4 |
|
| Argenta | Beaverhead County | 1 | 95 |
| Arlee | Lake County | 1 | 596 |
| Ashland | Rosebud County | 1 | 754 |
| Augusta | Lewis and Clark County | 1 | 197 |
| Avon | Powell County | 1 | 76 |
| Ayers Ranch Colony | Fergus County | 1 | 66 |
| Azure | Hill County | 1 | 303 |
| Babb | Glacier County | 1 | 82 |
| Bainville | Roosevelt County | 1 | 168 |
| Baker | Fallon County | 1 | 1,832 |
|
| Ballantine | Yellowstone County | 1 | 135 |
| Basin | Jefferson County | 1 | 222 |
| Batavia | Flathead County | 1 | 302 |
| Bear Dance | Lake County | 3 | 416 |
| Bearcreek | Carbon County | 1 | 64 |
| Beaver Creek | Hill County | 2 | 379 |
| Belfry | Carbon County | 1 | 205 |
| Belgrade | Gallatin County | 1 | 7,439 |
| Belknap | Sanders County | 2 | 78 |
| Belt | Cascade County | 1 | 747 |
|
| Biddle | Powder River County | 1 | 38 |
| Big Arm | Lake County | 1 | 287 |
| Big Sandy | Chouteau County | 1 | 769 |
| Big Sky | Gallatin County | 1 | 2,266 |
| Big Sky Colony | Glacier County | 1 | 0 |
| Big Stone Colony | Cascade County | 1 | 113 |
| Big Timber | Sweet Grass County | 1 | 1,572 |
| Bigfork | Flathead County | 1 | 4,356 |
| Bighorn | Treasure County | 1 | |
| Billings | Yellowstone County | 4 | 104,374 |
| Birch Creek Colony | Pondera County | 1 | 8 |
| Birney | Rosebud County | 1 | 104 |
| Black Eagle | Cascade County | 1 | 1,063 |
| Blackfoot | Glacier County | 1 | 57 |
| Bloomfield | Dawson County | 1 | 6 |
| Boneau | Chouteau County | 1 | 263 |
| Bonner | Missoula County | 1 | |
| Bonner-West Riverside | Missoula County | 3 | 1,725 |
| Boulder | Jefferson County | 1 | 1,298 |
| Box Elder | Hill County | 1 | 76 |
|
| Boyd | Carbon County | 1 | 23 |
| Boyes | Carter County | 1 | |
| Bozeman | Gallatin County | 3 | 37,619 |
| Brady | Pondera County | 1 | 152 |
| Brandon | Madison County | 1 | 65 |
| Bridger | Carbon County | 1 | 917 |
| Bridger (Gallatin County) | Gallatin County | 1 | 53 |
| Broadus | Powder River County | 1 | 610 |
| Broadview | Yellowstone County | 1 | 185 |
| Brockton | Roosevelt County | 1 | 375 |
| Brockway | Mccone County | 1 | 9 |
| Brooks | Fergus County | 1 | 57 |
| Browning | Glacier County | 1 | 1,172 |
| Brusett | Garfield County | 1 | |
| Buffalo | Fergus County | 1 | |
| Bull Lake | Lincoln County | 2 | 220 |
| Busby | Big Horn County | 1 | 470 |
| Butte | Silver Bow County | 2 | 33,159 |
| Bynum | Teton County | 1 | 20 |
| Camas | Sanders County | 1 | 37 |
| Cameron | Madison County | 1 | |
| Camp Three | Musselshell County | 1 | 189 |
| Camrose Colony | Toole County | 1 | 35 |
| Canyon Creek | Lewis and Clark County | 1 | 71 |
| Capitol | Carter County | 1 | |
| Cardwell | Jefferson County | 1 | 27 |
| Carlton | Missoula County | 1 | 848 |
| Carter | Chouteau County | 1 | 55 |
| Cascade | Cascade County | 1 | 593 |
| Cascade Colony | Cascade County | 2 | 44 |
| Centerville | Cascade County | 2 | 26 |
| Charlo | Lake County | 1 | 304 |
| Charlos Heights | Ravalli County | 1 | 60 |
| Chester | Liberty County | 1 | 780 |
| Chinook | Blaine County | 1 | 1,286 |
| Choteau | Teton County | 1 | 1,808 |
| Churchill | Gallatin County | 1 | 1,032 |
| Circle | Mccone County | 1 | 627 |
| Clancy | Jefferson County | 1 | 1,553 |
| Clinton | Missoula County | 1 | 950 |
| Clyde Park | Park County | 1 | 380 |
| Coffee Creek | Fergus County | 1 | 0 |
| Cohagen | Garfield County | 1 | |
| Colstrip | Rosebud County | 1 | 2,395 |
| Columbia Falls | Flathead County | 1 | 4,690 |
| Columbus | Stillwater County | 1 | 1,982 |
| Condon | Missoula County | 1 | 316 |
| Conner | Ravalli County | 1 | 161 |
| Conrad | Pondera County | 1 | 2,572 |
| Cooke City | Park County | 1 | 25 |
| Cooke City-Silver Gate | Park County | 1 | |
| Coram | Flathead County | 1 | 459 |
| Corvallis | Ravalli County | 1 | 728 |
| Corwin Springs | Park County | 1 | 134 |
| Craig | Lewis and Clark County | 1 | 41 |
| Crane | Richland County | 1 | 133 |
| Crow Agency | Big Horn County | 1 | 1,467 |
| Culbertson | Roosevelt County | 1 | 767 |
| Custer | Yellowstone County | 1 | 221 |
| Cut Bank | Glacier County | 1 | 2,896 |
| Cyr | Mineral County | 1 | 83 |
| Dagmar | Sheridan County | 1 | |
| Danvers | Fergus County | 1 | 10 |
| Darby | Ravalli County | 1 | 616 |
| Dayton | Lake County | 1 | 59 |
| De Borgia | Mineral County | 1 | 67 |
| Decker | Big Horn County | 1 | |
| Deer Lodge | Powell County | 1 | 3,124 |
| Deerfield Colony | Fergus County | 1 | 0 |
| Dell | Beaverhead County | 1 | 5 |
| Denton | Fergus County | 1 | 329 |
| Dewey | Beaverhead County | 1 | 13 |
| Dillon | Beaverhead County | 1 | 4,149 |
| Divide | Silver Bow County | 1 | |
| Dixon | Sanders County | 1 | 312 |
| Dodson | Phillips County | 1 | 98 |
| Drummond | Granite County | 1 | 455 |
| Duncan Ranch Colony | Wheatland County | 1 | 6 |
| Dupuyer | Pondera County | 1 | 58 |
| Dutton | Teton County | 1 | 403 |
| Eagle Creek Colony | Liberty County | 1 | 100 |
| East End Colony | Hill County | 1 | 0 |
| East Glacier Park | Glacier County | 1 | |
| East Glacier Park Village | Glacier County | 1 | 629 |
| East Helena | Lewis and Clark County | 1 | 2,031 |
| East Malta Colony | Phillips County | 1 | 0 |
| East Missoula | Missoula County | 1 | 2,311 |
| Edgar | Carbon County | 1 | 189 |
| Ekalaka | Carter County | 1 | 399 |
| Elkhorn | Jefferson County | 1 | 19 |
| Elliston | Powell County | 1 | 243 |
| Elmo | Lake County | 1 | 150 |
| Emigrant | Park County | 1 | 242 |
| Ennis | Madison County | 1 | 883 |
| Essex | Flathead County | 1 | 61 |
| Ethridge | Toole County | 1 | |
| Eureka | Lincoln County | 1 | 1,123 |
| Evaro | Missoula County | 3 | 412 |
| Evergreen | Flathead County | 1 | 6,696 |
| Fair Haven Colony | Cascade County | 1 | 0 |
| Fairfield | Teton County | 1 | 547 |
| Fairview | Richland County | 1 | 913 |
| Fallon | Prairie County | 1 | 190 |
| Finley Point | Lake County | 1 | 567 |
| Fishtail | Stillwater County | 1 | 140 |
| Flat Willow Colony | Musselshell County | 1 | 47 |
| Flaxville | Daniels County | 1 | 110 |
| Florence | Ravalli County | 1 | 779 |
| Floweree | Chouteau County | 1 | 11 |
| Fords Creek Colony | Fergus County | 1 | 43 |
| Forest Hill Village | Flathead County | 1 | 228 |
| Forsyth | Rosebud County | 1 | 1,825 |
| Fort Belknap Agency | Blaine County | 2 | 1,409 |
| Fort Benton | Chouteau County | 1 | 1,478 |
| Fort Peck | Valley County | 1 | 201 |
| Fort Shaw | Cascade County | 1 | 300 |
| Fort Smith | Big Horn County | 1 | 20 |
| Fortine | Lincoln County | 1 | 461 |
| Forty Mile Colony | Big Horn County | 1 | 0 |
| Four Corners | Gallatin County | 1 | 2,998 |
| Fox | Carbon County | 2 | 38 |
| Fox Lake | Richland County | 1 | 134 |
| Frazer | Valley County | 1 | 257 |
| Frenchtown | Missoula County | 1 | 1,566 |
| Froid | Roosevelt County | 1 | 132 |
| Fromberg | Carbon County | 1 | 604 |
| Galata | Toole County | 1 | |
| Gallatin Gateway | Gallatin County | 1 | 946 |
| Gallatin River Ranch | Gallatin County | 3 | 60 |
| Gardiner | Park County | 1 | 934 |
| Garrison | Powell County | 1 | 134 |
| Garryowen | Big Horn County | 1 | |
| Geraldine | Chouteau County | 1 | 253 |
| Geyser | Judith Basin County | 1 | 24 |
| Gibson Flats | Cascade County | 1 | 107 |
| Gildford | Hill County | 1 | 93 |
| Gildford Colony | Hill County | 1 | 25 |
| Gilman | Lewis and Clark County | 1 | 41 |
| Glacier Colony | Glacier County | 1 | 0 |
| Glasgow | Valley County | 1 | 3,268 |
| Glen | Beaverhead County | 1 | 78 |
| Glendale Colony | Glacier County | 1 | 0 |
| Glendive | Dawson County | 1 | 4,990 |
| Glentana | Valley County | 1 | |
| Goldcreek | Powell County | 1 | 1 |
| Golden Valley Colony | Golden Valley County | 1 | 0 |
| Grant | Beaverhead County | 1 | 30 |
| Grantsdale | Ravalli County | 1 | |
| Grass Range | Fergus County | 1 | 159 |
| Great Falls | Cascade County | 3 | 58,498 |
| Greycliff | Sweet Grass County | 1 | 93 |
| Hall | Granite County | 1 | 34 |
| Hamilton | Ravalli County | 1 | 4,393 |
| Hammond | Carter County | 1 | |
| Happys Inn | Lincoln County | 2 | 65 |
| Hardin | Big Horn County | 1 | 3,510 |
| Hardy | Cascade County | 1 | 69 |
| Harlem | Blaine County | 1 | 887 |
| Harlowton | Wheatland County | 1 | 917 |
| Harrison | Madison County | 1 | 218 |
| Hartland Colony | Blaine County | 1 | 0 |
| Hathaway | Rosebud County | 1 | |
| Haugan | Mineral County | 1 | 13 |
| Havre | Hill County | 1 | 9,425 |
| Havre North | Hill County | 1 | 668 |
| Hays | Blaine County | 1 | 701 |
| Heart Butte | Pondera County | 1 | 526 |
| Hebgen Lake Estates | Gallatin County | 1 | 61 |
| Helena | Lewis and Clark County | 3 | 28,381 |
| Helena Flats | Flathead County | 2 | 1,072 |
| Helena Valley Northeast | Lewis and Clark County | 2 | 2,562 |
| Helena Valley Northwest | Lewis and Clark County | 2 | 3,522 |
| Helena Valley Southeast | Lewis and Clark County | 3 | 7,860 |
| Helena Valley West Central | Lewis and Clark County | 2 | 8,293 |
| Helena West Side | Lewis and Clark County | 3 | 1,308 |
| Helmville | Powell County | 1 | 109 |
| Heron | Sanders County | 1 | 300 |
| Herron | Hill County | 1 | 68 |
| Hidden Lake Colony | Glacier County | 1 | 0 |
| Highwood | Chouteau County | 1 | 170 |
| Hilger | Fergus County | 1 | 0 |
| Hilldale Colony | Hill County | 1 | 0 |
| Hillside Colony | Toole County | 2 | 209 |
| Hingham | Hill County | 1 | 97 |
| Hinsdale | Valley County | 1 | 229 |
| Hobson | Judith Basin County | 1 | 232 |
| Hogeland | Blaine County | 1 | 24 |
| Homestead | Sheridan County | 1 | 10 |
| Horizon Colony | Glacier County | 1 | 0 |
| Hot Springs | Sanders County | 1 | 665 |
| Hungry Horse | Flathead County | 1 | 1,198 |
| Huntley | Yellowstone County | 1 | 362 |
| Huson | Missoula County | 1 | 34 |
| Hysham | Treasure County | 1 | 322 |
| Indian Springs | Lincoln County | 1 | 151 |
| Ingomar | Rosebud County | 1 | |
| Inverness | Hill County | 1 | 64 |
| Ismay | Custer County | 1 | 32 |
| Jackson | Beaverhead County | 1 | 26 |
| Jardine | Park County | 1 | 73 |
| Jeffers | Madison County | 1 | 17 |
| Jefferson City | Jefferson County | 1 | 488 |
| Jette | Lake County | 1 | 203 |
| Joliet | Carbon County | 1 | 617 |
| Joplin | Liberty County | 1 | 167 |
| Jordan | Garfield County | 1 | 386 |
| Judith Gap | Wheatland County | 1 | 158 |
| Kalispell | Flathead County | 1 | 20,016 |
| Kerr | Lake County | 1 | 236 |
| Kevin | Toole County | 1 | 128 |
| Kicking Horse | Lake County | 1 | 195 |
| Kila | Flathead County | 1 | 487 |
| Kilby Butte Colony | Musselshell County | 1 | 0 |
| King Arthur Park | Gallatin County | 1 | 683 |
| King Ranch Colony | Fergus County | 1 | 69 |
| Kings Point | Lake County | 1 | 405 |
| Kingsbury Colony | Pondera County | 1 | 105 |
| Kinsey | Custer County | 1 | |
| Klein | Musselshell County | 1 | 339 |
| Knife River | Richland County | 1 | |
| Kremlin | Hill County | 1 | 98 |
| Lake Mary Ronan | Lake County | 1 | 67 |
| Lake McDonald | Flathead County | 1 | |
| Lakeside | Flathead County | 1 | 2,285 |
| Lakeview | Beaverhead County | 1 | 33 |
| Lambert | Richland County | 1 | |
| Lame Deer | Rosebud County | 1 | 2,050 |
| Landusky | Phillips County | 1 | 15 |
| Laredo | Hill County | 2 | 0 |
| Larslan | Valley County | 1 | |
| Laurel | Yellowstone County | 1 | 6,763 |
| Lavina | Golden Valley County | 1 | 165 |
| Ledger | Pondera County | 1 | |
| Lewistown | Fergus County | 1 | 5,897 |
| Lewistown Heights | Fergus County | 1 | 454 |
| Libby | Lincoln County | 1 | 2,667 |
| Lima | Beaverhead County | 1 | 268 |
| Lincoln | Lewis and Clark County | 1 | 786 |
| Lindisfarne | Lake County | 2 | 367 |
| Lindsay | Dawson County | 1 | 18 |
| Little Bitterroot Lake | Flathead County | 1 | 217 |
| Little Browning | Glacier County | 1 | 162 |
| Livingston | Park County | 1 | 7,071 |
| Lloyd | Blaine County | 1 | |
| Lockwood | Yellowstone County | 3 | 6,606 |
| Lodge Grass | Big Horn County | 1 | 433 |
| Lodge Pole | Blaine County | 1 | 323 |
| Logan | Gallatin County | 2 | 44 |
| Lolo | Missoula County | 1 | 3,374 |
| Loma | Chouteau County | 1 | 39 |
| Lonepine | Sanders County | 1 | 179 |
| Loring | Phillips County | 1 | |
| Loring Colony | Phillips County | 1 | 0 |
| Lothair | Liberty County | 1 | |
| Luther | Carbon County | 1 | 35 |
| Malmstrom AFB | Cascade County | 1 | 3,983 |
| Malta | Phillips County | 1 | 1,911 |
| Mammoth | Madison County | 1 | 0 |
| Manhattan | Gallatin County | 1 | 1,394 |
| Marion | Flathead County | 1 | 739 |
| Martin City | Flathead County | 1 | 466 |
| Martinsdale | Meagher County | 1 | 79 |
| Martinsdale Colony | Wheatland County | 1 | 124 |
| Marysville | Lewis and Clark County | 1 | 71 |
| Maverick Mountain | Beaverhead County | 2 | 88 |
| Maxville | Granite County | 2 | 83 |
| McAllister | Madison County | 2 | 209 |
| McLeod | Sweet Grass County | 1 | |
| Medicine Lake | Sheridan County | 1 | 291 |
| Melrose | Silver Bow County | 1 | |
| Melstone | Musselshell County | 1 | 113 |
| Melville | Sweet Grass County | 1 | |
| Midway Colony | Pondera County | 1 | 74 |
| Mildred | Prairie County | 1 | |
| Miles City | Custer County | 1 | 8,428 |
| Milford Colony | Lewis and Clark County | 1 | 0 |
| Miller Colony | Teton County | 2 | 10 |
| Milltown | Missoula County | 1 | |
| Missoula | Missoula County | 6 | 66,982 |
| Moccasin | Judith Basin County | 1 | 45 |
| Molt | Stillwater County | 1 | |
| Monarch | Cascade County | 1 | 5 |
| Montana City | Jefferson County | 3 | 2,845 |
| Montaqua | Carbon County | 1 | 86 |
| Moore | Fergus County | 1 | 197 |
| Mosby | Garfield County | 1 | |
| Mountain View Colony | Yellowstone County | 1 | 0 |
| Muddy | Big Horn County | 1 | 818 |
| Musselshell | Musselshell County | 1 | 66 |
| Nashua | Valley County | 1 | 347 |
| Neihart | Cascade County | 1 | 67 |
| New Miami Colony | Pondera County | 2 | 95 |
| New Rockport Colony | Teton County | 2 | 69 |
| Niarada | Flathead County | 4 | 10 |
| Nibbe | Yellowstone County | 2 | 120 |
| Norris | Madison County | 1 | 22 |
| North Browning | Glacier County | 1 | 2,454 |
| North Harlem Colony | Blaine County | 1 | 26 |
| Noxon | Sanders County | 1 | 318 |
| Nye | Stillwater County | 1 | 39 |
| Oilmont | Toole County | 1 | |
| Old Agency | Sanders County | 1 | 162 |
| Olive | Powder River County | 1 | |
| Olney | Flathead County | 1 | 224 |
| Opheim | Valley County | 1 | 121 |
| Orchard Homes | Missoula County | 2 | 5,491 |
| Otter | Powder River County | 1 | |
| Outlook | Sheridan County | 1 | 96 |
| Ovando | Powell County | 1 | 94 |
| Pablo | Lake County | 1 | 1,989 |
| Paradise | Sanders County | 1 | 210 |
| Park City | Stillwater County | 1 | 945 |
| Parker School | Hill County | 2 | 488 |
| Peerless | Daniels County | 1 | 6 |
| Pendroy | Teton County | 1 | 9 |
| Philipsburg | Granite County | 1 | 852 |
| Piltzville | Missoula County | 3 | 314 |
| Pine Creek | Park County | 1 | 111 |
| Pinesdale | Ravalli County | 1 | 754 |
| Pinnacle | Flathead County | 2 | 48 |
| Pioneer Junction | Lincoln County | 1 | 908 |
| Plains | Sanders County | 1 | 888 |
| Pleasant Valley Colony | Cascade County | 1 | 0 |
| Plentywood | Sheridan County | 1 | 1,626 |
| Plevna | Fallon County | 1 | 117 |
| Polaris | Beaverhead County | 1 | |
| Polebridge | Flathead County | 1 | 33 |
| Polson | Lake County | 1 | 4,524 |
| Pompeys Pillar | Yellowstone County | 1 | 86 |
| Pondera Colony | Pondera County | 1 | 53 |
| Ponderosa Pines | Gallatin County | 2 | 327 |
| Pony | Madison County | 1 | 135 |
| Poplar | Roosevelt County | 1 | 1,091 |
| Potomac | Missoula County | 1 | 37 |
| Powderville | Powder River County | 1 | |
| Power | Teton County | 1 | 211 |
| Prairie Elk Colony | Mccone County | 1 | 0 |
| Pray | Park County | 1 | 945 |
| Proctor | Lake County | 1 | |
| Pryor | Big Horn County | 1 | 765 |
| Racetrack | Powell County | 1 | 7 |
| Rader Creek | Jefferson County | 1 | 243 |
| Radersburg | Broadwater County | 1 | 113 |
| Ramsay | Silver Bow County | 1 | |
| Rapelje | Stillwater County | 1 | 105 |
| Ravalli | Lake County | 1 | 66 |
| Raymond | Sheridan County | 1 | |
| Raynesford | Judith Basin County | 1 | 42 |
| Red Lodge | Carbon County | 1 | 2,353 |
| Redstone | Sheridan County | 1 | 31 |
| Reed Point | Stillwater County | 1 | 193 |
| Reserve | Sheridan County | 1 | 39 |
| Rexford | Lincoln County | 1 | 60 |
| Rhodes | Flathead County | 1 | 210 |
| Riceville | Cascade County | 1 | 34 |
| Richey | Dawson County | 1 | 148 |
| Richland | Valley County | 1 | |
| Rimini | Lewis and Clark County | 1 | 110 |
| Rimrock Colony | Toole County | 1 | 168 |
| Ringling | Meagher County | 1 | |
| Riverbend | Mineral County | 1 | 248 |
| Riverview Colony | Liberty County | 1 | 326 |
| Roberts | Carbon County | 1 | 188 |
| Rockport Colony | Teton County | 1 | 0 |
| Rockvale | Carbon County | 1 | 168 |
| Rocky Boy West | Chouteau County | 1 | 910 |
| Rocky Boy's Agency | Hill County | 1 | 360 |
| Rocky Point | Lake County | 1 | 72 |
| Rollins | Lake County | 1 | 210 |
| Ronan | Lake County | 1 | 2,143 |
| Roscoe | Carbon County | 1 | 14 |
| Rosebud | Rosebud County | 1 | 95 |
| Roundup | Musselshell County | 1 | 1,825 |
| Roy | Fergus County | 1 | 124 |
| Rudyard | Hill County | 1 | 298 |
| Ryegate | Golden Valley County | 1 | 171 |
| Saco | Phillips County | 1 | 231 |
| Saddle Butte | Hill County | 1 | 217 |
| Sage Creek Colony | Liberty County | 1 | 63 |
| Saint Marie | Valley County | 1 | |
| Saint Xavier | Big Horn County | 1 | |
| Saltese | Mineral County | 1 | 9 |
| Sand Coulee | Cascade County | 1 | 209 |
| Sand Springs | Garfield County | 1 | |
| Sanders | Treasure County | 1 | |
| Sangrey | Hill County | 1 | 459 |
| Santa Rita | Glacier County | 1 | 64 |
| Sapphire Ridge | Judith Basin County | 1 | 21 |
| Savage | Richland County | 1 | 336 |
| Scobey | Daniels County | 1 | 1,079 |
| Sedan | Gallatin County | 3 | 146 |
| Seeley Lake | Missoula County | 1 | 1,430 |
| Seville Colony | Glacier County | 1 | 0 |
| Shawmut | Wheatland County | 1 | 21 |
| Shelby | Toole County | 1 | 2,864 |
| Shepherd | Yellowstone County | 1 | 817 |
| Sheridan | Madison County | 1 | 642 |
| Sidney | Richland County | 1 | 5,360 |
| Silesia | Carbon County | 3 | 90 |
| Silver Gate | Park County | 1 | 24 |
| Silver Star | Madison County | 1 | 89 |
| Simms | Cascade County | 1 | 343 |
| Sleeping Buffalo | Phillips County | 2 | 0 |
| Snowslip | Flathead County | 1 | 30 |
| Somers | Flathead County | 1 | 1,116 |
| South Browning | Glacier County | 1 | 1,930 |
| South Glastonbury | Park County | 2 | 340 |
| South Hills | Jefferson County | 2 | 340 |
| Spokane Creek | Broadwater County | 3 | 193 |
| Spring Creek Colony | Fergus County | 1 | 0 |
| Springdale | Park County | 1 | 49 |
| Springdale Colony | Meagher County | 1 | 0 |
| Springhill | Gallatin County | 1 | 42 |
| Springwater Colony | Wheatland County | 1 | 83 |
| Square Butte | Chouteau County | 2 | 14 |
| St. Ignatius | Lake County | 1 | 792 |
| St. Marie | Valley County | 4 | 303 |
| St. Mary | Glacier County | 2 | 579 |
| St. Pierre | Hill County | 1 | 270 |
| St. Regis | Mineral County | 1 | 300 |
| St. Xavier | Big Horn County | 2 | 5 |
| Stanford | Judith Basin County | 1 | 474 |
| Starr School | Glacier County | 1 | 81 |
| Stevensville | Ravalli County | 1 | 2,280 |
| Stockett | Cascade County | 1 | 301 |
| Stryker | Lincoln County | 1 | 16 |
| Sula | Ravalli County | 1 | 32 |
| Sumatra | Rosebud County | 1 | |
| Sun Prairie | Cascade County | 1 | 1,664 |
| Sun River | Cascade County | 1 | 147 |
| Sunburst | Toole County | 1 | 451 |
| Sunnybrook Colony | Chouteau County | 1 | 0 |
| Superior | Mineral County | 1 | 1,108 |
| Surprise Creek Colony | Judith Basin County | 1 | 14 |
| Swan Lake | Lake County | 1 | 54 |
| Sweet Grass | Toole County | 1 | 75 |
| Sylvanite | Lincoln County | 1 | 108 |
| Teigen | Petroleum County | 1 | |
| Terry | Prairie County | 1 | 626 |
| The Silos | Broadwater County | 1 | 550 |
| Thompson Falls | Sanders County | 1 | 1,174 |
| Three Forks | Gallatin County | 1 | 1,636 |
| Toston | Broadwater County | 1 | 140 |
| Townsend | Broadwater County | 1 | 2,041 |
| Tracy | Cascade County | 2 | 147 |
| Trego | Lincoln County | 1 | 640 |
| Trout Creek | Sanders County | 1 | 195 |
| Troy | Lincoln County | 1 | 864 |
| Turah | Missoula County | 3 | 410 |
| Turner | Blaine County | 1 | 77 |
| Turner Colony | Blaine County | 1 | 0 |
| Turtle Lake | Lake County | 1 | 70 |
| Twin Bridges | Madison County | 1 | 335 |
| Twin Creeks | Missoula County | 1 | 198 |
| Twin Hills Colony | Chouteau County | 1 | 0 |
| Twodot | Wheatland County | 1 | 38 |
| Ulm | Cascade County | 1 | 575 |
| Unionville | Lewis and Clark County | 1 | 151 |
| Utica | Judith Basin County | 1 | 10 |
| Valier | Pondera County | 1 | 714 |
| Vandalia | Valley County | 1 | |
| Vaughn | Cascade County | 1 | 781 |
| Victor | Ravalli County | 1 | 773 |
| Vida | Mccone County | 1 | 25 |
| Virginia City | Madison County | 1 | 200 |
| Volborg | Custer County | 1 | |
| Walkerville | Silver Bow County | 1 | 1,005 |
| Warm Spring Creek | Fergus County | 2 | 0 |
| Warm Springs | Deer Lodge County | 1 | |
| Weeksville | Sanders County | 1 | 36 |
| West Glacier | Flathead County | 1 | 372 |
| West Glendive | Dawson County | 1 | 1,997 |
| West Havre | Hill County | 1 | 146 |
| West Kootenai | Lincoln County | 1 | 323 |
| West Yellowstone | Gallatin County | 1 | 1,413 |
| Westby | Sheridan County | 1 | 174 |
| Wheatland | Broadwater County | 3 | 427 |
| White Haven | Lincoln County | 1 | 910 |
| White Sulphur Springs | Meagher County | 1 | 1,017 |
| Whitefish | Flathead County | 1 | 6,402 |
| Whitehall | Jefferson County | 1 | 1,097 |
| Whitetail | Daniels County | 1 | 13 |
| Whitewater | Phillips County | 1 | 31 |
| Whitlash | Liberty County | 1 | 18 |
| Wibaux | Wibaux County | 1 | 522 |
| Willard | Fallon County | 1 | |
| Willow Creek | Gallatin County | 1 | 309 |
| Wilsall | Park County | 1 | 125 |
| Windham | Judith Basin County | 1 | 44 |
| Wineglass | Park County | 1 | 262 |
| Winifred | Fergus County | 1 | 153 |
| Winnett | Petroleum County | 1 | 277 |
| Winston | Broadwater County | 1 | 236 |
| Wisdom | Beaverhead County | 1 | 86 |
| Wise River | Beaverhead County | 1 | 34 |
| Wolf Creek | Lewis and Clark County | 1 | 22 |
| Wolf Point | Roosevelt County | 1 | 2,629 |
| Woods Bay | Lake County | 2 | 498 |
| Worden | Yellowstone County | 1 | 586 |
| Wye | Missoula County | 1 | 459 |
| Wyola | Big Horn County | 1 | 208 |
| Yaak | Lincoln County | 1 | 191 |
| York | Lewis and Clark County | 2 | 158 |
| Zenith Colony | Glacier County | 1 | 0 |
| Zortman | Phillips County | 1 | 18 |
| Zurich | Blaine County | 1 | 65 |