Savannah, Georgia is 54% larger than Gainesville, Florida.
Area: 145 km2 calculated
Gainesville is the county seat and largest city in Alachua County, Florida, and the principal city of the Gainesville, Florida Metropolitan Statistical Area. The population of Gainesville in the 2010 United States Census was 124,354. Wikipedia
Area: 223 km2 calculated
Savannah is the oldest city in the U.S. state of Georgia and the county seat of Chatham County. Established in 1733, the city of Savannah became the British colonial capital of the Province of Georgia and later the first state capital of Georgia. Wikipedia