Winthrop Harbor is located in Illinois. Winthrop Harbor, Illinois has a population of 6,824. Winthrop Harbor is less family-centric than the surrounding county with 29% households with children. The county percentage for households with children is 35%.
The median household income in Winthrop Harbor, Illinois is $86,860. The median household income for the surrounding county is $91,525 compared to the national median of $66,222. The median age of people living in Winthrop Harbor is 44.2 years.
The average high temperature in July is 78.7 degrees, with an average low temperature in January of 13.2 degrees. The annual precipitation is 34.74.