Kahaluu, HI has a population of 5,009 and is the 6,465th largest city in the United States. The population density is 1,439 per sq mi which is 1030% higher than the Hawaii average and 1488% higher than the national average. The median age in Kahaluu is 37 which is approximately 5% lower than the Hawaii average of 39. In Kahaluu, 60% of the population over 15 years of age are married, 82% speak English and 3% speak Spanish. 76% of Kahaluu residents were born in Hawaii, 16% were born out of state, 4% were born outside of the United States and 5% were foreign born.