Cedar Rapids, Iowa is 31% larger than Rochester, Minnesota.
Area: 187 km2 calculated
Cedar Rapids is the second largest city in Iowa and is the county seat of Linn County. The city lies on both banks of the Cedar River, 20 miles north of Iowa City and 100 miles east of Des Moines, the state's capital and largest city. Wikipedia
Area: 144 km2 calculated
Rochester is a city in the U.S. State of Minnesota and is the county seat of Olmsted County. Located on the Zumbro River's south fork, the city has a population of 106,769 according to the 2010 United States Census. The U.S. Census Bureau estimated 2013 population is 110,742. Wikipedia