Downtown Atlanta is the central business district of Atlanta, Georgia, United States. The largest of the city's three commercial districts, Downtown is the location of many corporate or regional headquarters; city, county, state and federal government facilities; Georgia State University; sporting venues; and most of Atlanta's tourist attractions. Downtown measures approximately four square miles, and had 26,700 residents as of 2010. Similar to other central business districts in the U.S., Downtown has recently undergone a transformation that included the construction of new condos and lofts, renovation of historic buildings, and arrival of new residents and businesses.