Clarence, NY has a population of 2,927 and is the 8,931st largest city in the United States. The population density is 1,029 per sq mi which is 187% higher than the New York average and 1036% higher than the national average. The median age in Clarence is 47 which is approximately 23% higher than the New York average of 38. In Clarence, 68% of the population over 15 years of age are married, 91% speak English and 2% speak Spanish. 85% of Clarence residents were born in New York, 10% were born out of state, 0% were born outside of the United States and 5% were foreign born.