14 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 59901 | Kalispell | 61,710 |
| 59912 | Columbia Falls | 15,745 |
| 59937 | Whitefish | 14,653 |
| 59922 | Lakeside | 2,617 |
| 59920 | Kila | 1,635 |
| 59925 | Marion | 1,561 |
| 59932 | Somers | 1,530 |
| 59936 | West Glacier | 679 |
| 59919 | Hungry Horse | 663 |
| 59913 | Coram | 543 |
| 59927 | Olney | 295 |
| 59926 | Martin City | 250 |
| 59916 | Essex | 168 |
| 59928 | Polebridge | 130 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 14 ZCTAs in Flathead County, Montana (US Census).