18 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 84302 | Brigham City | 27,053 |
| 84337 | Tremonton | 16,199 |
| 84312 | Garland | 4,857 |
| 84340 | Willard | 3,744 |
| 84324 | Mantua | 1,677 |
| 84307 | Corinne | 1,356 |
| 84311 | Fielding | 1,013 |
| 84314 | Honeyville | 964 |
| 84301 | Bear River City | 889 |
| 84309 | Deweyville | 871 |
| 84306 | Collinston | 521 |
| 84336 | Snowville | 481 |
| 84329 | Park Valley | 424 |
| 84330 | Plymouth | 364 |
| 84316 | Howell | 288 |
| 84331 | Portage | 245 |
| 84334 | Riverside | 180 |
| 84313 | Grouse Creek | 0 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 18 ZCTAs in Box Elder County, Utah (US Census).