Islip Terrace is a city located in Suffolk County New York. Islip Terrace has a 2020 population of 5,579. Islip Terrace is currently declining at a rate of 0.00% annually and its population has increased by 3.53% since the most recent census, which recorded a population of 5,389 in 2010. Islip Terrace reached it's highest population of 5,647 in 2011.
The average household income in Islip Terrace is $136,448 with a poverty rate of 2.55%. The median rental costs in recent years comes to $2,412 per month, and the median house value is $359,300. The median age in Islip Terrace is 38.7 years, 33.4 years for males, and 43.7 years for females.