(Encyclopedia) Hawaii h?w??, hv?, 50th state of the United States, comprising a group of eight major islands and numerous islets in the central Pacific Ocean, c.2,100 mi (3,380 km) SW of San? The United Nations Educational, Scientific, and Cultural Organization (UNESCO) has identified 878 World Heritage sites that it considers of ?outstanding universal value.? In the United States? Mayor: Kirk Caldwell (to Jan. 2017)2010 census population (rank):1 337,256 (53); Male: 192,781 (49.3%); Female: 197,957 (50.7%); White: 76,145 (19.5%); Black: 5,718 (1.6%); American Indian?