Old Main Historic District, Dubuque

Old Main Street Historic District is a nationally recognized historic district located in Dubuque, Iowa, United States. It was listed on the National Register of Historic Places in 1983. At the time of its nomination it consisted of 33 resources, which included 30 contributing buildings and three non-contributing buildings. In 2015 the boundaries were increased to include five more buildings. Four of the buildings are contributing properties that were excluded from the original district because they were slated to be torn down as a part of the expansion of U.S. Route 61. While the highway was built the buildings were spared. The fifth building is non-contributing as are three structures. ()