North Charleston, South Carolina is 48% larger than Wilmington, North Carolina.
Area: 194 km2 calculated
North Charleston is the third largest city in the U.S. state of South Carolina, with incorporated areas in Berkeley, Charleston, and Dorchester counties. On June 12, 1972, the city of North Charleston incorporated and was the ninth largest city in South Carolina. Wikipedia
Area: 131 km2 calculated
Wilmington is a port city in- and is the county seat of- New Hanover County in coastal southeastern North Carolina, United States. The population is 106,476; according to the 2010 Census it is the eighth most populous city in the state. Wikipedia