There are 15 US Post Offices in Wright County serving a total of 152,705 residents equating to 10,180 residents per post office. It's estimated that approximately 243,734 packages are handled across the 15 county post offices annually. Wright County is a county located in the U.S. state of Minnesota. As of the 2010 census, the population was 124,700. Its county seat is Buffalo. The county was founded in 1855. Wright County is included in the Minneapolis-St. Paul-Bloomington, MN-WI Metropolitan Statistical Area."