Jeffersonville The former Macon, Dublin & Savannah Railroad depot at Jeffersonville is now the local city hall and police department. Jeffersonville, a city of 1,200 in middle Georgia, is the county seat of Twiggs County. (Photos by Carmine Fischetti.)   Georgia's Railroad History & Heritage. Copyright, Steve Storey. Railroad History | The Depot List | Locomotives On Display | Odds & Ends | Sources & References | Home