Situated in Oceania and the only one composed of islands. Hawaii is the only US state not located in America. Is the 50th state to join the Union (on August 21, 1959 ) and with a population of 1,418,158 is today the 40th most populous state. Known as the Aloha State. State Abbreviation: HI Capital City:Honolulu Largest City:Oahu Number of Counties: 5 Area: 10,931 square miles Major Rivers:Anahulu and Wailuku Major Lakes: Salt Lake Highest Point:Mauna Kea 13,796 feet above sea level State Motto:Ua Mau ke Ea o ka ʻĀina i ka Pono ("The Life of the Land is Perpetuated in Righteousness") State Bird: Nene State Insect: Kamehameha butterfly State Fish: Reef triggerfish "Humuhumunukunukuāpuaʻa' State Tree: Candlenut State Flower: Hawaiian hibiscus State Gemstone: Black coral