Delanson, NY has a population of 379 and is the 21,170th largest city in the United States. The population density is 589 per sq mi which is 64% higher than the New York average and 550% higher than the national average. The median age in Delanson is 36 which is approximately 6% lower than the New York average of 38. In Delanson, 64% of the population over 15 years of age are married, 99% speak English and 0% speak Spanish. 88% of Delanson residents were born in New York, 7% were born out of state, 3% were born outside of the United States and 2% were foreign born.