Greenwood Lake, NY has a population of 3,118 and is the 8,608th largest city in the United States. The population density is 1,542 per sq mi which is 330% higher than the New York average and 1602% higher than the national average. The median age in Greenwood Lake is 46 which is approximately 20% higher than the New York average of 38. In Greenwood Lake, 50% of the population over 15 years of age are married, 88% speak English and 11% speak Spanish. 71% of Greenwood Lake residents were born in New York, 26% were born out of state, 0% were born outside of the United States and 3% were foreign born.