This table ranks all 18 ZIP codes in the Great Falls, MT MSA by estimated 2022 population, from highest to lowest.
| # | ZIP Code | Place Name | Population (2022) |
|---|---|---|---|
| 1 | ZIP 59405 | Great Falls | 34,010 |
| 2 | ZIP 59404 | Great Falls | 28,417 |
| 3 | ZIP 59401 | Great Falls | 13,660 |
| 4 | ZIP 59421 | Cascade | 2,025 |
| 5 | ZIP 59412 | Belt | 1,493 |
| 6 | ZIP 59487 | Vaughn | 1,394 |
| 7 | ZIP 59485 | Ulm | 712 |
| 8 | ZIP 59414 | Black Eagle | 672 |
| 9 | ZIP 59468 | Power | 634 |
| 10 | ZIP 59472 | Sand Coulee | 541 |
| 11 | ZIP 59443 | Fort Shaw | 498 |
| 12 | ZIP 59483 | Sun River | 358 |
| 13 | ZIP 59477 | Simms | 329 |
| 14 | ZIP 59480 | Stockett | 303 |
| 15 | ZIP 59440 | Floweree | 263 |
| 16 | ZIP 59469 | Raynesford | 156 |
| 17 | ZIP 59463 | Monarch | 103 |
| 18 | ZIP 59465 | Neihart | 40 |