Minneapolis

Minneapolis was an American city.

In 2008, Captain Jack Harkness visited Minneapolis as part of his investigation of the Committee. (AUDIO: Uncanny Valley)

In 2012, Minneapolis was one of the cities suggested by Henry van Statten to leave Polkowski after he ordered for him to be taken away, his memory wiped, and dumped "somewhere beginning with M." (TV: Dalek)

Behind the scenes
Nevertheless, neither Dalek nor any other DWU story ever mentions the state of Minnesota, which this map clearly shows as the location for.