Islip is located in New York. Islip, New York has a population of 341,617. Islip is more family-centric than the surrounding county with 32% households with children. The county percentage for households with children is 30%.
The median household income in Islip, New York is $101,279. The median household income for the surrounding county is $104,317 compared to the national median of $66,222. The median age of people living in Islip is 40.6 years.
The average high temperature in July is 83.2 degrees, with an average low temperature in January of 22.6 degrees. The annual precipitation is 46.52.