the Hawaiian Islands and a Ramsar Convention site. Kaʻōhao/Lanikai Kaʻōhao () is the earliest known Hawaiian name for the place known as "Lanikai." Kaʻōhao means "the tying" and is derived from an old story in which "two women were tied together here with a loincloth after being beaten in a kōnane game". Kaʻōhao was commercially developed in the 1920s and renamed "Lanikai." It is now an unincorporated community in Kailua on the windward coast at Kailua Bay. Lanikai Beach was rated one of the world's top ten beaches by Sherman's Travel Magazine. The area is known for its white, powder-like sandy beach and its hiking trail along the Kaiwa Ridge to the World War II military bunkers commonly known as the "Lanikai Pillboxes". Because of its small community and easy access to its famous beach, Lanikai has one of Hawaii's most expensive real estate markets. It is served by Kailua's zip code, 96734. Climate Climate Kailua has a tropical savanna climate. Demographics As of the census of 2020, there were an estimated 40,514 people and 12,387 households with an average of 3.04 people per household in Kailua. The population density was 5,212.8 inhabitants per square mile (2012.7/km2), which was less dense than that of Honolulu (5842.0 per square mile or 2255.6/km2). There were 4,322 housing units in Kailua at an average density of 121.7 per square mile (47.0/km2). The racial makeup of Kailua was 44.8% White, 0.9% Black or African American, 0.2% Native American, 19.3% Asian, 4.4% Pacific Islander, 1.4% from other races, and 29.0% from two or more races. The Kailua population had a greater percentage of White residents and a lower percentage of Asian residents than the state in aggregate (25.3% and 38.6% respectively). 8.6% of the Kailua population were Hispanic or Latino of any race. 12.7% of Kailua residents reported having a language other than English spoken at home, less than the state average of 26.1%. The age of the population in Kailua was varied, with 5.8% of inhabitants being under the age of 5, 21.6% being under the age of 18, and 19.3% being above the age of 65. For every 100 females, there were 97.4 males. The median annual household income in Kailua was $122,706, and the per capita annual income was $51,260. 5.0% of the population in Kailua was estimated to be below the poverty line, which was below the state average of 11.2%.