Water Mill is a city located in New York. Water Mill has a 2020 population of 1,906. Water Mill is currently declining at a rate of 0.00% annually and its population has increased by 22.26% since the most recent census, which recorded a population of 1,559 in 2010. Water Mill reached it's highest population of 2,349 in 2016.
The average household income in Water Mill is $241,533 with a poverty rate of 9.92%. The median rental costs in recent years comes to - per month, and the median house value is $1.56 Mn. The median age in Water Mill is 53.2 years, 53.9 years for males, and 52.8 years for females. For every 100 females there are 83.4 males.