What number is the state of alaska
That would be 49. Alaska was admission to the Union on January 3, 1959 after being bought from the Russian Empire a few years before. You can go to http://en.wikipedia.org/wiki/Alaska and http://en.wikipedia.org/wiki/List_of_U.S._states_by_date_of_statehood for more information.
Alaska is the 49th state, meaning that it was the 49th state to join the Union.
It is the 49th State:)