There are 3 US Post Offices in Jenkins County serving a total of 9,422 residents equating to 3,141 residents per post office. It's estimated that approximately 15,039 packages are handled across the 3 county post offices annually. Jenkins County is a county located in the U.S. state of Georgia. As of the 2010 census, the population was 8,340. The county seat is Millen. The county was created on August 17, 1905 and named after the 44th Governor of Georgia, Charles Jones Jenkins."