Wellesley Island is located in New York. Wellesley Island, New York has a population of 319. Wellesley Island is less family-centric than the surrounding county with 12% households with children. The county percentage for households with children is 31%.
The median household income in Wellesley Island, New York is $51,074. The median household income for the surrounding county is $54,539 compared to the national median of $66,222. The median age of people living in Wellesley Island is 58.8 years.
The average high temperature in July is 79.57 degrees, with an average low temperature in January of 7.05 degrees. The annual precipitation is 36.76.