Atlantic Beach, NY has a population of 1,574 and is the 12,414th largest city in the United States. The population density is 3,587 per sq mi which is 900% higher than the New York average and 3860% higher than the national average. The median age in Atlantic Beach is 56 which is approximately 46% higher than the New York average of 38. In Atlantic Beach, 73% of the population over 15 years of age are married, 91% speak English and 3% speak Spanish. 81% of Atlantic Beach residents were born in New York, 7% were born out of state, 1% were born outside of the United States and 11% were foreign born.