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Welch Township is a township in Goodhue County, Minnesota, United States. It lies about halfway between the cities of Hastings and Red Wing and 36 miles southeast of Saint Paul. The population was 697 at the 2000 census. It is centered on the small community of Welch on the Cannon River. Like many river towns in the Driftless Area, it is situated at the base of the steep bluffs of the river valley.
Olmsted County is a county located in the U.S. state of Minnesota. As of the 2010 census, the population was 144,248. Its county seat and largest city is Rochester. The county was founded in 1855 and named for David Olmsted, a member of the first territorial council and the first mayor of St. Paul. Olmsted County is part of the Rochester, MN Metropolitan Statistical Area.