Mastic Beach is a city located in New York. Mastic Beach has a 2020 population of 11,953. Mastic Beach is currently declining at a rate of 0.00% annually and its population has decreased by -7.56% since the most recent census, which recorded a population of 12,930 in 2010. Mastic Beach reached it's highest population of 15,547 in 2013.
The average household income in Mastic Beach is $82,201 with a poverty rate of 13.30%. The median rental costs in recent years comes to $1,791 per month, and the median house value is $212,200. The median age in Mastic Beach is 38.7 years, 35.8 years for males, and 40.6 years for females. For every 100 females there are 101.9 males.