Clarkson, NY has a population of 4,308 and is the 7,103rd largest city in the United States. The population density is 473 per sq mi which is 32% higher than the New York average and 422% higher than the national average. The median age in Clarkson is 42 which is approximately 10% higher than the New York average of 38. In Clarkson, 64% of the population over 15 years of age are married, 92% speak English and 5% speak Spanish. 90% of Clarkson residents were born in New York, 7% were born out of state, 1% were born outside of the United States and 3% were foreign born.