Rochester is a city which was founded in the United States in 1854. State of Minnesota and is the Olmsted County county seat situated on the southern fork of the Zumbro River in Southeast Minnesota. It is the third-largest city in Minnesota, and the largest city outside Minneapolis-St. Paul Regional Metropolitan Area. The Rochester metropolitan area had a population estimated over 219,000. The city has a total of 56 sqaure miles. Rochester is served by three U.S. highways U.S. 14, U.S. 52, and U.S. 63, with Interstate Highway 90 and State Highway 30 skirting to the southern edge of Rochester.