Wichita Falls, Texas is 10,017 times larger than Fort Sumter.
Area: 185 km2 calculated
Wichita Falls is a city in and the county seat of Wichita County, Texas, United States. Wichita Falls is the principal city of the Wichita Falls Metropolitan Statistical Area, which encompasses all of Archer, Clay and Wichita counties. Wikipedia
Area: 0 km2 calculated
Fort Sumter is a Third System masonry sea fort located in Charleston Harbor, South Carolina. The fort is best known as the site upon which the shots that started the American Civil War were fired, at the Battle of Fort Sumter on April 12, 1861. Wikipedia