Antigua and Barb. is 28% larger than Atlanta.
Area: 443 km2 World Factbook
Population: 91,295 (July 2014) World Factbook
Antigua and Barbuda is a twin-island nation lying between the Caribbean Sea and the Atlantic Ocean. It consists of two major inhabited islands, Antigua and Barbuda, and a number of smaller islands. The permanent population numbers about 81,800 and the capital and largest port and city is St. Wikipedia
Area: 346 km2 calculated
Atlanta is the capital of and the most populous city in the U.S. state of Georgia, with an estimated 2013 population of 447,841. Atlanta is the cultural and economic center of the Atlanta metropolitan area, home to 5,522,942 people and the ninth largest metropolitan area in the United States. Wikipedia