Postal reference / United States
59401Great Falls, Montana
ZIP code 59401 is a United States postal code for Great Falls, Montana. Its county association is Cascade County. The map reference point is at 47.5098, -111.2734.
- State / territory
- Montana
- Recorded place name
- Great Falls
- County association
- Cascade
- Estimated coordinate
- 47.5098, -111.2734
View on OpenStreetMap - ZIP prefix
- 594 · 64 ZIP codes share it
- Data source
- GeoNames postal reference, snapshot September 26, 2026
GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.
Area
- Land area
- 2.96 sq mi (2023 Census Gazetteer)
Figures are for the ZIP Code Tabulation Area (ZCTA) that most closely matches this ZIP code, not an exact match to USPS delivery boundaries. Source: U.S. Census Bureau, 2023 Gazetteer + 2023 ACS 5-Year Estimates, retrieved 2026-09-27. How to read this data.
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ZIP+4 depends on the full delivery address. A five-digit code alone cannot determine its extension.
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Browse the other 403 ZIP codes recorded for Montana, sorted by code with place and county.
Montana directoryOther ZIP codes in Great Falls, MT
Great Falls has 5 ZIP codes in the reference dataset.
Nearby ZIP code reference points
| ZIP code | Place | State | County association | Miles |
|---|---|---|---|---|
| 59414 | Black Eagle | MT | Cascade | 1.1 |
| 59402 | Malmstrom Afb | MT | Cascade | 1.4 |
| 59403 | Great Falls | MT | Cascade | 1.4 |
| 59405 | Great Falls | MT | Cascade | 1.5 |
| 59404 | Great Falls | MT | Cascade | 3.1 |
| 59406 | Great Falls | MT | Cascade | 7.8 |
| 59472 | Sand Coulee | MT | Cascade | 9.0 |
| 59440 | Floweree | MT | Chouteau | 12.5 |
Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.
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