There are 6 US Post Offices in Wilkin County serving a total of 6,666 residents equating to 1,111 residents per post office. It's estimated that approximately 10,640 packages are handled across the 6 county post offices annually. Wilkin County is a county located in the U.S. state of Minnesota. As of the 2010 census, the population of Wilkin County was 6,576. Its county seat is Breckenridge. The county is named for Colonel Alexander Wilkin, a lawyer who served as Minnesota\u2019s U.S. marshal and was later killed in the Civil War. Wilkin County is part of the Wahpeton, ND\u2013MN Micropolitan Statistical Area, which is included in the Fargo-Wahpeton, ND-MN Combined Statistical Area."