There are 4 US Post Offices in Mcintosh County serving a total of 2,970 residents equating to 743 residents per post office. It's estimated that approximately 4,740 packages are handled across the 4 county post offices annually. McIntosh County is a county located in the U.S. state of North Dakota. As of the 2010 census, the population was 2,809. Its county seat is Ashley. The county was created in 1883 and later organized in 1884."