Hauula, HI has a population of 3,578 and is the 7,945th largest city in the United States. The population density is 3,100 per sq mi which is 2334% higher than the Hawaii average and 3322% higher than the national average. The median age in Hauula is 31 which is approximately 19% lower than the Hawaii average of 39. In Hauula, 59% of the population over 15 years of age are married, 80% speak English and 1% speak Spanish. 67% of Hauula residents were born in Hawaii, 25% were born out of state, 2% were born outside of the United States and 5% were foreign born.