Waialua 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 1.3 square miles (3.0 km²) and sits at an elevation of 30 ft. With a population of approximately 3,761 residents, Waialua offers a peaceful, rural atmosphere.
The town's population is composed of about 51.05% males and 48.95% females, and it has a population density of N/A (N/A). Waialua lies at a latitude of 21.58 and a longitude of -158.13, operating in the UTC-6.
Locals reflect a blend of American ancestry, with roots primarily in United States (0%), followed by English (1.7%), German (3%), and Scotch-Irish (0%) heritage. The town is identified by the ZIP code 96791.