West Haverstraw, NY has a population of 10,334 and is the 3,861st largest city in the United States. The population density is 6,795 per sq mi which is 1545% higher than the New York average and 7400% higher than the national average. The median age in West Haverstraw is 34 which is approximately 12% lower than the New York average of 38. In West Haverstraw, 50% of the population over 15 years of age are married, 52% speak English and 35% speak Spanish. 61% of West Haverstraw residents were born in New York, 6% were born out of state, 4% were born outside of the United States and 29% were foreign born.