There are 24 US Post Offices in Stearns County serving a total of 160,723 residents equating to 6,697 residents per post office. It's estimated that approximately 256,532 packages are handled across the 24 county post offices annually. Stearns County is a county located in the U.S. state of Minnesota. As of the 2010 census, the population was 150,642. Its county seat is Saint Cloud. The county was founded in 1855. It was supposed to be named after Isaac Ingalls Stevens, but a clerical error changed the name to Stearns, after Charles Thomas Stearns. Stearns County is part of the St. Cloud, MN Metropolitan Statistical Area, which is also included in the Minneapolis-St. Paul, MN-WI Combined Statistical Area.