Downsville, NY has a population of 614 and is the 18,301st largest city in the United States. The population density is 155 per sq mi which is 57% lower than the New York average and 71% higher than the national average. The median age in Downsville is 48 which is approximately 26% higher than the New York average of 38. In Downsville, 50% of the population over 15 years of age are married, 98% speak English and 0% speak Spanish. 93% of Downsville residents were born in New York, 4% were born out of state, 1% were born outside of the United States and 1% were foreign born.