There are 6 US Post Offices in Newton County serving a total of 11,171 residents equating to 1,862 residents per post office. It's estimated that approximately 17,830 packages are handled across the 6 county post offices annually. Newton County is the easternmost county in the U.S. state of Texas. As of the 2010 census, its population was 14,445. Its county seat is Newton. The county is named for John Newton, a veteran of the American Revolutionary War. Newton County is included in the Beaumont-Port Arthur, TX Metropolitan Statistical Area. As of 2000, it had the second lowest population density for all counties in East Texas, behind only Red River County, and the lowest population density in Deep East Texas."