Founded in February 17, 1880, San Juan County is one of 29 counties in the state of Utah. Historically, San Juan County was formed from parts of Kane, Iron, and Piute counties. The city of Monticello is the county seat. With FIPS code of 37, San Juan County has a population of 14,489 and area of 7,820 square miles (20,254 km2).
List of all cities in San Juan County, UT alphabetically
| City/Town | Postal Code | Area Code |
| Aneth, UT | 84510 | 435 |
| Blanding, UT | 84511 | 435 |
| Bluff, UT | 84512 | 435 |
| Bullfrog, UT | 84533 | 435 |
| Fry Canyon, UT | 84533 | 435 |
| Halls Crossing, UT | 84533 | 435 |
| Hite, UT | 84533 | 435 |
| Irish Green, UT | 84533 | 435 |
| La Sal, UT | 84530 | 435 |
| Lake Powell, UT | 84533 | 435 |
| Mexican Hat, UT | 84531 | 435 |
| Montezuma Creek, UT | 84534 | 435 |
| Monticello, UT | 84535 | 435 |
| Monument Valley, UT | 84536 | 435 |
| Natural Bridges, UT | 84533 | 435 |
| Ticaboo, UT | 84533 | 435 |
| White Mesa, UT | 84511 | 435 |