Founded in January 5, 1856, Box Elder County is one of 29 counties in the state of Utah. Historically, Box Elder County was formed from part of Weber County. The city of Brigham City is the county seat. With FIPS code of 3, Box Elder County has a population of 59,688 and area of 5,746 square miles (14,882 km2).
List of all cities in Box Elder County, UT alphabetically
| City/Town | Postal Code | Area Code |
| Bear River City, UT | 84301 | 435 |
| Bear River Cy, UT | 84301 | 435 |
| Beaverdam, UT | 84306 | 435 |
| Beeton, UT | 84309 | 435 |
| Bothwell, UT | 84337 | 435 |
| Brigham, UT | 84302 | 435 |
| Brigham City, UT | 84302 | 435 |
| Bushnell, UT | 84302 | 435 |
| Collinston, UT | 84306 | 435 |
| Corinne, UT | 84307 | 435 |
| Crystal Springs, UT | 84314 | 435 |
| Deweyville, UT | 84309 | 435 |
| Elwood, UT | 84337 | 435 |
| Etna, UT | 84313 | 435 |
| Fielding, UT | 84311 | 435 |
| Garland, UT | 84312 | 435 |
| Grouse Creek, UT | 84313 | 435 |
| Honeyville, UT | 84314 | 435 |
| Howell, UT | 84316 | 435 |
| Madsen, UT | 84314 | 435 |
| Mantua, UT | 84324 | 435 |
| Park Valley, UT | 84329 | 435 |
| Penrose, UT | 84337 | 435 |
| Perry, UT | 84302 | 435 |
| Plymouth, UT | 84330 | 435 |
| Portage, UT | 84331 | 435 |
| Promontory, UT | 84307 | 435 |
| Riverside, UT | 84334 | 435 |
| Rosette, UT | 84329 | 435 |
| Snowville, UT | 84336 | 435 |
| Thatcher, UT | 84337 | 435 |
| Tremonton, UT | 84337 | 435 |
| Wheelon, UT | 84306 | 435 |
| Willard, UT | 84340 | 435 |