Shelter Island Heights, NY has a population of 1,386 and is the 13,152nd largest city in the United States. The population density is 257 per sq mi which is 28% lower than the New York average and 183% higher than the national average. The median age in Shelter Island Heights is 47 which is approximately 24% higher than the New York average of 38. In Shelter Island Heights, 64% of the population over 15 years of age are married, 89% speak English and 0% speak Spanish. 69% of Shelter Island Heights residents were born in New York, 26% were born out of state, 0% were born outside of the United States and 5% were foreign born.