
Waialua
- County:
- Honolulu County
- County Seat:
- No
- Area (mi²):
- 2.191
- State:
- Hawaii
Waialua is a CDP located in Honolulu County, Hawaii. Waialua has a 2025 population of 2,851. Waialua is currently declining at a rate of -2.3% annually and its population has decreased by -8.39% since the most recent census, which recorded a population of 3,112 in 2020.
The average household income in Waialua is $107,009 with a poverty rate of 11.63%. The median age in Waialua is 47.8 years: 47.5 years for males, and 49.2 years for females.