Rye Brook, NY has a population of 9,513 and is the 4,089th largest city in the United States. The population density is 2,772 per sq mi which is 673% higher than the New York average and 2959% higher than the national average. The median age in Rye Brook is 44 which is approximately 16% higher than the New York average of 38. In Rye Brook, 69% of the population over 15 years of age are married, 74% speak English and 11% speak Spanish. 64% of Rye Brook residents were born in New York, 16% were born out of state, 1% were born outside of the United States and 19% were foreign born.