Joliet, Illinois is 53% larger than Rochester, New York.
Area: 147 km2 calculated
Joliet is a city in Will and Kendall counties in the US state of Illinois, located 40 miles southwest of Chicago. It is the county seat of Will County. As of the 2010 census, the city was the fourth-most populated in Illinois, with a population of 147,433. Wikipedia
Area: 96 km2 calculated
Rochester is a city in Monroe County, New York, south of Lake Ontario in the United States. Known as the World's Image Center, it was also once known as the Flour City, and more recently as The Flower City, annually hosting the Lilac Festival. It is the county seat for Monroe County. Wikipedia