Cascade County, Montana ZIP Codes
- ZIP records
15 - Cities represented
13 - Sum of listed ZIP population estimates
84,584
Population sum includes positive estimates in these ZIP records; it is not an official county population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | Population estimate |
|---|---|---|---|
| 1 | 59405 | Great Falls | 33,350 |
| 2 | 59404 | Great Falls | 28,822 |
| 3 | 59401 | Great Falls | 13,255 |
| 4 | 59421 | Cascade | 2,069 |
| 5 | 59412 | Belt | 1,685 |
| 6 | 59487 | Vaughn | 1,548 |
| 7 | 59414 | Black Eagle | 781 |
| 8 | 59485 | Ulm | 772 |
| 9 | 59443 | Fort Shaw | 705 |
| 10 | 59472 | Sand Coulee | 507 |
Cities in Cascade County
ZIP Directory
- ZIP 59401
- ZIP 59404
- ZIP 59405
- ZIP 59412
- ZIP 59414
- ZIP 59421
- ZIP 59443
- ZIP 59463
- ZIP 59465
- ZIP 59472
- ZIP 59477
- ZIP 59480
- ZIP 59483
- ZIP 59485
- ZIP 59487
Browse all ZIP data for Montana
Methodology: Records are grouped by the source file's listed county and state. Population sums add positive ZIP-level estimates and are not official county totals; city counts use distinct city labels in the source.