Corktown is a neighborhood located in Detroit, Michigan. It is the oldest extant neighborhood in the city. The current boundaries of the district include I-75 to the north, the Lodge Freeway to the east, Bagley and Porter streets to the south, and Rosa Parks Boulevard (12th Street) to the west. The neighborhood was listed on the National Register of Historic Places in 1978. The Corktown Historic District is largely residential, although some commercial properties along Michigan Avenue are included in the district. The residential section is listed on the National Register of Historic Places and is designated as a City of Detroit Historic District. The neighborhood contains many newer homes and retains some original Irish businesses.