Atlantic Beach is a city located in Nassau County New York. With a 2020 population of 1,900, it is the 310th largest city in New York and the 7793rd largest city in the United States . Atlantic Beach is currently declining at a rate of -0.05% annually but its population has increased by 0.48% since the most recent census, which recorded a population of 1,891 in 2010. Atlantic Beach reached it's highest population of 1,903 in 2014. Spanning over 1 miles, Atlantic Beach has a population density of 4,326 people per square mile.
The average household income in Atlantic Beach is $192,248 with a poverty rate of 2.35%. The median rental costs in recent years comes to $2,517 per month, and the median house value is $783,700. The median age in Atlantic Beach is 55 years, 52.8 years for males, and 58.4 years for females.