At Kahulu'u, visitors to the windward side travelling via the Pali Highway, H-3, or Likelike Highway first encounter the ocean (actually Kāne'ohe Bay) close beside the highway (Kamehameha Highway or State Rte. 83). Kahalu'u is a mostly rural area slowly transforming into a denser residential community.
The U.S. postal code for Kahalu'u is 96744.
According to the United States Census Bureau, the town has a total area of 5.9 km² (2.3 mi²). 3.2 km² (1.2 mi²) of it is land and 2.7 km² (1.1 mi²) of it is water. The total area is 46.49% water.
Demographics
As of the 2000 Census there were 2,935 people, 927 households, and 716 families residing in Kahalu'u. The population density was 928.9/km² (2,410.8/mi²). There were 980 housing units at an average density of 310.1/km² (805.0/mi²). The racial makeup of the town was 26.85% White, 0.37% African American, 0.07% Native American, 22.18% Asian, 17.51% Pacific Islander, 0.99% from other races, and 32.03% from two or more races. 6.81% of the population were Hispanic or Latino of any race.
There were 927 households out of which 31.8% had children under the age of 18 living with them, 54.7% were married couples living together, 15.7% had a female householder with no husband present, and 22.7% were non-families. 13.5% of all households were made up of individuals and 3.7% had someone living alone who was 65 years of age or older. The average household size was 3.17 and the average family size was 3.50.
In the town the population was spread out with 25.3% under the age of 18, 8.2% from 18 to 24, 27.5% from 25 to 44, 27.8% from 45 to 64, and 11.1% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 102.0 males. For every 100 females age 18 and over, there were 96.9 males.
The median income for a household in the town was $61,098, and the median income for a family was $61,184. Males had a median income of $41,310 versus $28,194 for females. The per capita income for the town was $22,204. 7.4% of the population and 7.4% of families were below the poverty line. Out of the total people living in poverty, 6.7% were under the age of 18 and 3.0% were 65 or older.