Hawaii (Hawaiian/Hawaiian English: Hawai‘i, with the ‘okina) is the archipelago of the Hawaiian Islands in the Pacific Ocean. Hawaii constitutes the 50th state of the United States, and as of the 2000 U.S. Census had a population of 1,211,537 people. Honolulu is the largest city and the state capital. The most recently admitted into the Union, has many distinctions. In addition to having the southernmost point in the United States, it is the only state that lies completely in the tropics. As one of two states outside the contiguous United States (the other being Alaska), it is the only one without territory on the mainland of any continent and is the only state that continues to grow due to active lava flows, most notably from Kīlauea.