Chatham County, Georgia Chatham County, Georgia Chatham County is a county in the U.S. state of Georgia, and is located on the state's Atlantic coast. The county seat and largest city is Savannah. One of the original counties of Georgia, Chatham County was created February 5, 1777, and is named after William Pitt, 1st Earl of Chatham. The U.S. Census Bureau's 2017 population estimate for Chatham County was 290,501 residents, making Chatham the most populous Georgia county outside the Atlanta metropolitan area. The official 2010 Census counted 265,128 residents in Chatham County. Chatham is the core county of the Savannah metropolitan area. According
William Pitt, 1st Earl of Chatham entire tenure of office. Chatham rarely saw any of his colleagues though they repeatedly and urgently pressed for interviews with him, and even an offer from the King to visit him in person was respectfully declined. While his gout seemed to improve, he was newly afflicted with mental alienation bordering on insanity. Chatham's lack of leadership resulted in an incohesive set of policies. Chatham dismissed his allies Amherst and Shelburne from their posts, and then in October 1768 he tendered his own resignation on the grounds of poor health, leaving the leadership to Grafton, his First Lord of the Treasury.