Kapolei is a city in Honolulu County, Hawaii, United States, on the island of Oahu. It is colloquially known as the "second city" of Oahu, in relation to Honolulu. The community takes its name from a volcanic cone, Puu o Kapolei. In the Hawaiian language, puu means "hill" and Kapo lei means "beloved Kapo". According to legend, Kapo was sister to Pele. Much of the land is part of the estate of industrialistJames Campbell. Kapolei's major developer is Kapolei Property Development, a subsidiary of James Campbell Company. Kapolei sits primarily upon former sugarcane and pineapple fields. Planned as the second "urban center" on the island of Oahu, initial residential construction in the Kapolei area began in the late 1980s, with commercial developments springing up shortly thereafter. Two decades later, the Kapolei area has seen massive growth, and has become the center of business in the West Oahu region of the island. As of the 2010 census, the Kapolei CDP had a population of 15,186 people.