Welton is a city in Clinton County, Iowa, United States. The population was 159 at the 2000 census. The community is located adjacent to U.S. Route 61, which passes around Welton just to the east of the city. Prior to the rebuilding of the highway as a four lane highway, U.S. 61 went directly through the city. Following reconstruction of U.S. 61, a new truck stop was built adjacent to U.S. 61 near the southern edge of the city. On Wednesday, April 5, 2006 the 85-year-old Welton School was demolished. According to the Telegraph Herald newspaper, "the school was closed in 2005 because of budget problems and declining enrollment."