There are 1 US Post Offices in Mineral County serving a total of 671 residents equating to 671 residents per post office. It's estimated that approximately 1,071 packages are handled across the 1 county post offices annually. Mineral County is one of the 64 counties in the U.S. state of Colorado. As of the 2010 census, the population was 712, making it the second-least populous county in Colorado. The county seat and only incorporated municipality in the county is Creede. The county was named for the many valuable minerals found in the mountains and streams of the area."