First three digits · Montana
ZIP Codes Starting with
64 ZIP codes start with 594, sorted at the Great Falls, MT (SCF 594) sectional center (USPS labeling list L005, effective October 1, 2026) in Montana: 61 residential ZIP codes across 11 counties and 3 PO Box or single-organization codes (Census 2020 ZCTAs and GeoNames postal codes, October 2026).
What do the digits 594 mean?
The first digit, 5, is one of ten national areas (Iowa, Minnesota, Montana, North Dakota, South Dakota and Wisconsin). The first three, 594, route mail to a sectional center: USPS labeling list L005 (effective October 1, 2026) sends letters for 594 to the Great Falls, MT (SCF 594) facility. The last two digits pick the delivery area. By residents, the largest town names among the 594 ZIP codes are Great Falls, Lewistown, Browning, Cut Bank, Conrad and Shelby.
The same facility sorts 3 prefixes, 111 ZIP codes in all: 594, 595, 596.
Where are the 594 ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All ZIP codes starting with 594
| County | ||||||
|---|---|---|---|---|---|---|
| 59401 | Great Falls | Cascade County | 13,255 | 4,478 | $55k | $223k |
| 59402 | Malmstrom Afb | Cascade County | PO Box or unique | – | – | – |
| 59403 | Great Falls | Cascade County | PO Box or unique | – | – | – |
| 59404 | Great Falls | Cascade County | 28,822 | 87 | $84k | $296k |
| 59405 | Great Falls | Cascade County | 33,350 | 70 | $59k | $250k |
| 59406 | Great Falls | Cascade County | PO Box or unique | – | – | – |
| 59410 | Augusta | Lewis and Clark County | 520 | 0 | $42k | $259k |
| 59411 | Babb | Glacier County | 798 | 4 | $61k | – |
| 59412 | Belt | Cascade County | 1,685 | 4 | $83k | $251k |
| 59414 | Black Eagle | Cascade County | 781 | 448 | $70k | $190k |
| 59416 | Brady | Pondera County | 425 | 1 | $89k | $163k |
| 59417 | Browning | Glacier County | 7,470 | 10 | $38k | $150k |
| 59418 | Buffalo | Judith Basin County | 142 | 1 | – | – |
| 59419 | Bynum | Teton County | 44 | 0 | $46k | $275k |
| 59420 | Carter | Chouteau County | 164 | 1 | $88k | $117k |
| 59421 | Cascade | Cascade County | 2,069 | 3 | $78k | $378k |
| 59422 | Choteau | Teton County | 2,938 | 2 | $68k | $257k |
| 59424 | Coffee Creek | Fergus County | 103 | 1 | $79k | $294k |
| 59425 | Conrad | Pondera County | 3,717 | 7 | $50k | $220k |
| 59427 | Cut Bank | Glacier County | 5,008 | 4 | $61k | $174k |
| 59430 | Denton | Fergus County | 448 | 1 | $77k | $211k |
| 59432 | Dupuyer | Pondera County | 170 | 1 | $74k | $250k |
| 59433 | Dutton | Teton County | 421 | 1 | $66k | $161k |
| 59434 | East Glacier Park | Glacier County | 368 | 1 | $56k | $205k |
| 59435 | Ethridge | Toole County | 14 | 0 | – | – |
| 59436 | Fairfield | Teton County | 2,039 | 8 | $81k | $324k |
| 59440 | Floweree | Chouteau County | 432 | 2 | – | $228k |
| 59441 | Forest Grove | Fergus County | 126 | 1 | $62k | – |
| 59442 | Fort Benton | Chouteau County | 1,838 | 2 | $68k | $254k |
| 59443 | Fort Shaw | Cascade County | 705 | 12 | $81k | $271k |
| 59444 | Galata | Toole County | 222 | 1 | $44k | – |
| 59446 | Geraldine | Chouteau County | 629 | 1 | $54k | $153k |
| 59447 | Geyser | Judith Basin County | 297 | 1 | $78k | $319k |
| 59448 | Heart Butte | Pondera County | 638 | 8 | $32k | $51k |
| 59450 | Highwood | Chouteau County | 503 | 1 | $70k | $288k |
| 59451 | Hilger | Fergus County | 123 | 1 | $86k | $214k |
| 59452 | Hobson | Judith Basin County | 599 | 2 | $55k | $224k |
| 59453 | Judith Gap | Wheatland County | 331 | 1 | $59k | $170k |
| 59454 | Kevin | Toole County | 123 | 1 | $36k | – |
| 59456 | Ledger | Liberty County | 392 | 1 | $41k | – |
| 59457 | Lewistown | Fergus County | 9,135 | 9 | $65k | $242k |
| 59460 | Loma | Chouteau County | 178 | 1 | $52k | $113k |
| 59461 | Lothair | Liberty County | 23 | 1 | – | – |
| 59462 | Moccasin | Judith Basin County | 122 | 1 | $51k | $229k |
| 59463 | Monarch | Cascade County | 142 | 1 | – | $345k |
| 59464 | Moore | Fergus County | 597 | 2 | $57k | $264k |
| 59465 | Neihart | Cascade County | 39 | 0 | $83k | $227k |
| 59466 | Oilmont | Toole County | 94 | 1 | $42k | $153k |
| 59467 | Pendroy | Teton County | 124 | 1 | $61k | – |
| 59468 | Power | Teton County | 858 | 3 | $83k | $240k |
| 59469 | Raynesford | Judith Basin County | 160 | 1 | $80k | $390k |
| 59471 | Roy | Fergus County | 318 | 0 | $65k | $178k |
| 59472 | Sand Coulee | Cascade County | 507 | 9 | $68k | $235k |
| 59474 | Shelby | Toole County | 3,525 | 6 | $58k | $233k |
| 59477 | Simms | Cascade County | 334 | 5 | $42k | $238k |
| 59479 | Stanford | Judith Basin County | 746 | 1 | $49k | $230k |
| 59480 | Stockett | Cascade County | 328 | 2 | $81k | $280k |
| 59482 | Sunburst | Toole County | 757 | 4 | $93k | $165k |
| 59483 | Sun River | Cascade County | 247 | 3 | $98k | $429k |
| 59484 | Sweet Grass | Toole County | 91 | 1 | – | – |
| 59485 | Ulm | Cascade County | 772 | 14 | $90k | $322k |
| 59486 | Valier | Pondera County | 1,205 | 2 | $57k | $183k |
| 59487 | Vaughn | Cascade County | 1,548 | 28 | $56k | $229k |
| 59489 | Winifred | Fergus County | 424 | 1 | $65k | $188k |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; GeoNames postal codes (CC BY 4.0) for codes without a residential area.