Islip is located in New York. Islip, New York has a population of 339,596. Islip is more family-centric than the surrounding county with 33.49% of the households containing married families with children. The county average for households married with children is 32.94%.
The median household income in Islip, New York is $111,656. The median household income for the surrounding county is $111,660 compared to the national median of $69,021. The median age of people living in Islip is 38.7 years.
The average high temperature in July is 82.4 degrees, with an average low temperature in January of 23.4 degrees. The average rainfall is approximately 46.9 inches per year, with 26.7 inches of snow per year.
