There are 8 US Post Offices in Wabasha County serving a total of 23,659 residents equating to 2,957 residents per post office. It's estimated that approximately 37,762 packages are handled across the 8 county post offices annually. Wabasha County is a county located in the U.S. state of Minnesota. As of the 2010 census, the population was 21,676. Its county seat is Wabasha. The county was founded in 1849. Wabasha County is included in the Rochester, MN Metropolitan Statistical Area."