Kahuku is a cdp located in Honolulu County, in the state of Hawaii (HI), United States. Nestled in the Pacific division of the West region, it covers an area of 1.0 square miles (3.0 km²) and sits at an elevation of 20 ft. With a population of approximately 2,097 residents, Kahuku offers a peaceful, rural atmosphere.
The town's population is composed of about 50.31% males and 49.69% females, and it has a population density of 161.86 people per square mile (834.70/km²). Kahuku lies at a latitude of 21.68 and a longitude of -157.95, operating in the UTC-6.
Locals reflect a blend of American ancestry, with roots primarily in United States (0%), followed by English (2.9%), German (3.5%), and Scotch-Irish (0%) heritage. The town is identified by the ZIP code 96731.