There are 8 US Post Offices in Koochiching County serving a total of 12,303 residents equating to 1,538 residents per post office. It's estimated that approximately 19,637 packages are handled across the 8 county post offices annually. Koochiching County (/\u02c8ku\u02d0t\u0283\u1d7bt\u0283\u1d7b\u014b/ KOOCH-\u0259ch-\u0259ng) is a county located in the U.S. state of Minnesota. As of the 2010 census, the population was 13,311. Its county seat is International Falls. A portion of the Bois Forte Indian Reservation is in the county. A small part of Voyageurs National Park extends into its boundary, with Lake of the Woods County to its northwest."