Saint Paul, Minnesota is 51% larger than Rochester, New York.
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
Area: 145 km2 calculated
Saint Paul is the capital and second-most populous city of the state of Minnesota. As of 2013, the city's estimated population was 294,873. Saint Paul is the county seat of Ramsey County, the smallest and most densely populated county in Minnesota. Wikipedia