25 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 58103 | Fargo | 48,577 |
| 58104 | Fargo | 46,165 |
| 58078 | West Fargo | 39,243 |
| 58102 | Fargo | 32,256 |
| 58047 | Horace | 4,427 |
| 58012 | Casselton | 2,736 |
| 58105 | Fargo | 2,533 |
| 58051 | Kindred | 1,866 |
| 58059 | Mapleton | 1,462 |
| 58042 | Harwood | 1,291 |
| 58005 | Argusville | 892 |
| 58021 | Davenport | 595 |
| 58052 | Leonard | 562 |
| 58006 | Arthur | 508 |
| 58064 | Page | 463 |
| 58048 | Hunter | 462 |
| 58079 | Wheatland | 452 |
| 58011 | Buffalo | 441 |
| 58071 | Tower City | 411 |
| 58031 | Fingal | 399 |
| 58004 | Amenia | 371 |
| 58036 | Gardner | 337 |
| 58007 | Ayr | 114 |
| 58029 | Erie | 77 |
| 58002 | Absaraka | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 25 ZCTAs in Cass County, North Dakota (US Census).