Dayton, Ohio is 7.1 times larger than Daly City, California.
Area: 21 km2 calculated
Population: 103,690 (2012)
Daly City is the largest city in San Mateo County, California, United States, with a 2010 population of 101,123. Located immediately south of San Francisco, it is named in honor of businessman and landowner John Daly. Wikipedia
Area: 149 km2 calculated
Population: 141,359 (2012)
Dayton is the sixth largest city in the U.S. state of Ohio and is the county seat of Montgomery County. Wikipedia