Winthrop Harbor is located in Illinois. Winthrop Harbor, Illinois has a population of 6,728. Winthrop Harbor is less family-centric than the surrounding county with 23.76% of the households containing married families with children. The county average for households married with children is 36.27%.
The median household income in Winthrop Harbor, Illinois is $85,536. The median household income for the surrounding county is $97,127 compared to the national median of $69,021. The median age of people living in Winthrop Harbor is 51.3 years.
The average high temperature in July is 80.3 degrees, with an average low temperature in January of 15.7 degrees. The average rainfall is approximately 35.7 inches per year, with 40.2 inches of snow per year.
