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
Earl Mount Cashell Earl Mount Cashell Earl Mount Cashell, of Cashell, County Tipperary, was a title in the Peerage of Ireland. It was created in 1781 for Stephen Moore, 2nd Viscount Mount Cashell, who had previously represented Lismore in the Irish House of Commons. He was the eldest surviving son of Stephen Moore, member of the Irish Parliament for County Tipperary, who had been created Baron Kilworth, of Moore Park in the County of Cork, in 1764 and Viscount Mount Cashell, of the City of Cashell, in 1766. These titles were also in the Peerage of Ireland. The first Earl was succeeded by