Middle Island is located in New York. Middle Island, New York has a population of 11,129. Middle Island is less family-centric than the surrounding county with 24.18% of the households containing married families with children. The county average for households married with children is 32.94%.
The median household income in Middle Island, New York is $81,599. 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 Middle Island is 44.4 years.
The average high temperature in July is 82.4 degrees, with an average low temperature in January of 22.8 degrees. The average rainfall is approximately 47.8 inches per year, with 28.4 inches of snow per year.
