There are 5 US Post Offices in Henry County serving a total of 217,203 residents equating to 43,441 residents per post office. It's estimated that approximately 346,680 packages are handled across the 5 county post offices annually. Henry County is a county located in the north central portion of the U.S. state of Georgia. Per the 2014 census estimate, the population of Henry County is 213,869. The county seat is McDonough. The county was named for Patrick Henry, Revolutionary War firebrand and champion of individual rights, to whom the slogan \"give me liberty, or give me death\" is attributed. Henry County is part of the Atlanta-Sandy Springs-Roswell, GA Metropolitan Statistical Area. It is home to the Atlanta Motor Speedway in Hampton. The Henry County Courthouse (McDonough, Georgia) is listed on the National Register of Historic Places. In 1995, Henry County was the 6th fastest growing county in the United States."