Waialua is a (sugar) mill town and residential area, quite different in its quiet ambiance from nearby Hale'iwa, which is more commercial and tourist oriented.
The U.S. postal code for Waialua is 96791
Geography
Waialua is located at 21°34'31" North, 158°7'46" West (21.575300, -158.129457),1 southwest of Hale'iwa reached on Waialua Beach Road (State Rte. 82) or Kaukonahua Road (State Rte. 830). Kaukonahua Road turns eastward and, as State Rte. 803 then 801 runs up into the central plateau of O'ahu to Wahiawā or (as 803) to Schofield Barracks. Farrington Highway (State Rte. 930) runs westward to Mokulē'ia.
According to the United States Census Bureau, the town has a total area of 3.7 km² (1.4 mi²). 3.2 km² (1.2 mi²) of it is land and 0.5 km² (0.2 mi²) of it is water. The total area is 13.19% water.
Demographics
As of the census of 2000, there were 3,761 people, 1,128 households, and 882 families residing in the town. The population density was 1,161.7/km² (3,007.6/mi²). There were 1,219 housing units at an average density of 376.5/km² (974.8/mi²). The racial makeup of the town was 15.34% White, 0.37% African American, 0.05% Native American, 51.85% Asian, 3.96% Pacific Islander, 1.04% from other races, and 27.39% from two or more races. 6.54% of the population were Hispanic or Latino of any race.
There were 1,128 households out of which 29.3% had children under the age of 18 living with them, 55.4% were married couples living together, 14.5% had a female householder with no husband present, and 21.8% were non-families. 17.5% of all households were made up of individuals and 8.3% had someone living alone who was 65 years of age or older. The average household size was 3.31 and the average family size was 3.71.
In the town the population is spread out with 23.9% under the age of 18, 7.7% from 18 to 24, 26.4% from 25 to 44, 23.1% from 45 to 64, and 18.9% who are 65 years of age or older. The median age is 39 years. For every 100 females there are 104.3 males. For every 100 females age 18 and over, there are 101.3 males.
The median income for a household in the town is $46,763, and the median income for a family is $51,801. Males have a median income of $29,607 versus $23,716 for females. The per capita income for the town is $17,220. 11.7% of the population and 8.9% of families are below the poverty line. Out of the total people living in poverty, 15.0% are under the age of 18 and 9.0% are 65 or older.