Hewlett Harbor, NY has a population of 1,247 and is the 13,800th largest city in the United States. The population density is 1,716 per sq mi which is 378% higher than the New York average and 1794% higher than the national average. The median age in Hewlett Harbor is 47 which is approximately 23% higher than the New York average of 38. In Hewlett Harbor, 71% of the population over 15 years of age are married, 85% speak English and 1% speak Spanish. 81% of Hewlett Harbor residents were born in New York, 4% were born out of state, 1% were born outside of the United States and 14% were foreign born.