According to the 2010 census, what is the population of the city that the radio station WOLV is licensed to?
WOLV (FM): WOLV (97.7 FM, "The Wolf") is a radio station licensed to Houghton, Michigan, broadcasting a classic hits format. Houghton, Michigan: Houghton ( ) is a city in the U.S. state of Michigan's Upper Peninsula and largest city in the Copper Country on the Keweenaw Peninsula. Houghton, Michigan:  As of the 2010 census, the city population was 7,708.
7,708