Question: What was the 2010 census population of this united city-borough located on Baranof Island, from which the government of what was then the District of Alaska was moved in 1906?
Sentence (from "Juneau, Alaska"): The municipality unified on July 1, 1970, when the city of Juneau merged with the city of Douglas and the surrounding Greater Juneau Borough to form the current municipality, which is larger by area than both Rhode Island and Delaware.
Relevant evidence: No