Greensboro The Georgia Railroad depot at Greensboro, built in 1917, is presently incorporated into a farm supplies store. (Photo: February 2003.) Greensboro, a city of 3,300 people, is the county seat of Greene County in northeast Georgia.   Georgia's Railroad History & Heritage. Copyright, Steve Storey. Railroad History | The Depot List | Locomotives On Display | Odds & Ends | Sources & References | Home