There are 9 US Post Offices in Macon County serving a total of 15,509 residents equating to 1,723 residents per post office. It's estimated that approximately 24,754 packages are handled across the 9 county post offices annually. Macon County is a county located in the northern portion of the U.S. state of Missouri. As of the 2010 census, the population was 15,566. Its county seat is Macon. The county was organized January 6, 1837 and named for Nathaniel Macon, a Revolutionary War hero and North Carolina politician."