There are 1 US Post Offices in Neshoba County serving a total of 24,865 residents equating to 24,865 residents per post office. It's estimated that approximately 39,687 packages are handled across the 1 county post offices annually. Neshoba County is a county located in the U.S. state of Mississippi. As of the 2010 census, the population was 29,676. Its county seat is Philadelphia. The name is derived from the Choctaw word nashoba meaning Wolf. The county is known for the Neshoba County Fair and harness horse races. It is also home of the Williams Brothers Store, which has been in operation since the early 1900s. The Mississippi Band of Choctaw Indians (MBCI) own one of the largest casino complexes in the state. The Silver Star and Golden Moon casinos are the first land based casinos in Mississippi. These casinos are part of the MBCI's Pearl River Resort."