Great Falls, MT metro area ZIP codes
The Great Falls, MT metropolitan statistical area (CBSA 24500) covers 1 county in Montana and 18 ZIP codes.
- ZIP codes
- 18
- Population
- 84,584
- Avg. median income
- $68,700population-weighted
- Counties
- 1
Click anywhere on the map to see which ZIP code it's in.
Counties in the Great Falls, MT area
ZIP codes in the Great Falls, MT area
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 59401 | Great Falls | Cascade County | 13,255 | $55,299 | $287,600 |
| 59402 PO Box | Malmstrom Afb | Cascade County | — | — | — |
| 59403 PO Box | Great Falls | Cascade County | — | — | — |
| 59404 | Great Falls | Cascade County | 28,822 | $83,867 | $389,700 |
| 59405 | Great Falls | Cascade County | 33,350 | $59,449 | $327,400 |
| 59406 PO Box | Great Falls | Cascade County | — | — | — |
| 59412 | Belt | Cascade County | 1,685 | $82,955 | $398,700 |
| 59414 | Black Eagle | Cascade County | 781 | $69,545 | $242,700 |
| 59421 | Cascade | Cascade County | 2,069 | $78,125 | $398,700 |
| 59443 | Fort Shaw | Cascade County | 705 | $81,221 | $491,400 |
| 59463 | Monarch | Cascade County | 142 | — | $333,100 |
| 59465 | Neihart | Cascade County | 39 | $83,000 | $260,700 |
| 59472 | Sand Coulee | Cascade County | 507 | $68,036 | $290,100 |
| 59477 | Simms | Cascade County | 334 | $42,292 | $364,100 |
| 59480 | Stockett | Cascade County | 328 | $80,714 | $345,300 |
| 59483 | Sun River | Cascade County | 247 | $97,813 | $444,100 |
| 59485 | Ulm | Cascade County | 772 | $90,286 | $451,300 |
| 59487 | Vaughn | Cascade County | 1,548 | $56,359 | $365,300 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Frequently asked questions
How many ZIP codes are in the Great Falls, MT metro area?
18 ZIP codes, based on each ZIP code's main county.
Which counties make up the Great Falls, MT area?
Cascade County.
What is an MSA?
A metropolitan statistical area (MSA) is a core city of 50,000+ people plus the surrounding counties tied to it by commuting, as defined by the U.S. Office of Management and Budget. Micropolitan areas have a core of 10,000–50,000. Together they are called core-based statistical areas (CBSAs).