Ardsley is a city located in New York. With a 2020 population of 4,474, it is the 178th largest city in New York and the 5080th largest city in the United States. Ardsley is currently declining at a rate of -0.56% annually but its population has increased by 0.49% since the most recent census, which recorded a population of 4,452 in 2010. Ardsley reached it's highest population of 4,560 in 2016. Spanning over 1 miles, Ardsley has a population density of 3,382 people per square mile.
The average household income in Ardsley is $186,922 with a poverty rate of 1.72%. The median rental costs in recent years comes to $1,440 per month, and the median house value is $638,300. The median age in Ardsley is 48.4 years, 42.3 years for males, and 51.6 years for females. For every 100 females there are 108.9 males.