The Dubuque County Courthouse is located on Central Avenue, between 7th and 8th Streets, in Dubuque, Iowa, United States. The current structure was built from 1891 to 1893 to replace an earlier building. These are believed to be the only two structures to house the county courts and administrative offices. The courthouse houses several county government offices including the county auditor, treasurer, attorney, and facilities for the Iowa District Court for Dubuque County.