Kapōlei High School officially opened its doors on July 26, 2000, at 91-5007 Kapōlei Parkway. As Kapōlei and neighboring communities expanded rapidly under the development plans of the Estate of James Campbell, the school was established to serve the growing educational needs of local youth. The inaugural class welcomed more than 375 freshmen, with additional grade levels added each year until Kapōlei High celebrated its first graduating class in June 2004.