Kealakekua is a census-designated place (CDP) in Hawaiʻi County, Hawaiʻi, United States. The population was 2,019 at the 2010 census, up from 1,645 at the 2000 census.
Kealakekua is located on the west side of the island of Hawaii at 19°31′35″N 155°55′22″W / 19.52639°N 155.92278°W / 19.52639; -155.92278 (19.526436, −155.922891). It is bordered to the north by Honalo and to the south by Captain Cook. Hawaii Route 11 is the main road through the community, leading north 10 miles (16 km) to Kailua-Kona and south 49 miles (79 km) to Naalehu.
According to the United States Census Bureau, the CDP has a total area of 7.2 square miles (18.7 km), all of it land.
As of the census of 2000, there were 1,645 people, 639 households, and 423 families residing in the CDP. The population density was 218.1 people per square mile (84.2/km²). There were 692 housing units at an average density of 91.7 per square mile (35.4/km²). The racial makeup of the CDP was 24.74% White, 0.73% African American, 0.67% Native American, 36.84% Asian, 7.23% Pacific Islander, 2.07% from other races, and 27.72% from two or more races. Hispanic or Latino of any race were 9.18% of the population.
There were 639 households out of which 25.5% had children under the age of 18 living with them, 49.0% were married couples living together, 12.2% had a female householder with no husband present, and 33.8% were non-families. 26.9% of all households were made up of individuals and 9.2% had someone living alone who was 65 years of age or older. The average household size was 2.57 and the average family size was 3.10.
In the CDP the population was spread out with 22.1% under the age of 18, 7.7% from 18 to 24, 25.3% from 25 to 44, 27.5% from 45 to 64, and 17.3% who were 65 years of age or older. The median age was 42 years. For every 100 females, there were 91.5 males. For every 100 females age 18 and over, there were 89.2 males.
The median income for a household in the CDP was $38,026, and the median income for a family was $45,192. Males had a median income of $29,333 versus $25,000 for females. The per capita income for the CDP was $21,495. About 9.2% of families and 13.7% of the population were below the poverty line, including 17.1% of those under age 18 and 6.3% of those age 65 or over.