I am doing the small yet unusual state of New Hampshire. The state abbreviations are NH, which is pretty easy to remember! The state capital is Concord which has been capital since 1808, but the largest city is Manchester with a population of 99,567. New Hampshire is ranked 41st in population, with about 119 persons per sq. mile. New Hampshire is the 3rd largest state in New England. The state’s nickname is The Granite State, because of the large amount of granite in the state. New Hampshire was admitted into the Union on June 21, 1788, it was the ninth state admitted.