Founded on 1876-01-31, San Juan County is one of 64 counties in the state of Colorado. Historically, San Juan County was split from Lake County. The city of Silverton is the county seat. With FIPS code of 111, San Juan County has a population of 733 and area of 388.99 square miles (1,007 km2).
List of all cities in San Juan County, CO alphabetically
| City/Town | Postal Code | Area Code |
| Silverton, CO | 81433 | 970 |
Map of Cities in San Juan County, CO
