Fort Wayne, Indiana is 93% larger than Dayton, Ohio.
Area: 149 km2 calculated
Dayton is the sixth largest city in the U.S. state of Ohio and is the county seat of Montgomery County. Wikipedia
Area: 287 km2 calculated
Fort Wayne is a city in the U.S. state of Indiana and the county seat of Allen County. The population was 256,496 as of the 2013 Census estimate making it the 76th largest city in the United States and the second largest in Indiana after Indianapolis. Wikipedia