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San Juan County, Colorado, 81433, United States (37.76331 -107.64955)
San Juan County is one of the 64 counties of the U.S. state of Colorado. As of the 2010 census, the population was 699, making it the least populous county in Colorado. The county seat and the only incorporated municipality in the county is Silverton. The county name is the Spanish language name for "Saint John", the name Spanish explorers gave to a river and the mountain range in the area. With a mean elevation of 11,240 feet (3426 meters), San Juan County is the highest county in the United States.