Pūpūkea is a community and census-designated place in the Koʻolauloa District on the island of Oʻahu, City& County of Honolulu, Hawaii, United States. In Hawaiian, pūpūkea means "white shell". As of the 2020 census, the CDP had a population of 5,130. The Koʻolauloa District ends at Waimea Bay, with the Waialua District extending south and westward. Pūpūkea is a popular area on Oʻahu's North Shore for living and for visiting.