West Loch Estate, HI has a population of 5,183 and is the 6,298th largest city in the United States. The population density is 7,860 per sq mi which is 6071% higher than the Hawaii average and 8576% higher than the national average. The median age in West Loch Estate is 41 which is approximately 5% higher than the Hawaii average of 39. In West Loch Estate, 63% of the population over 15 years of age are married, 68% speak English and 1% speak Spanish. 52% of West Loch Estate residents were born in Hawaii, 20% were born out of state, 2% were born outside of the United States and 26% were foreign born.