Wadmalaw Island is located in South Carolina. Wadmalaw Island, South Carolina has a population of 3,133. Wadmalaw Island is less family-centric than the surrounding county with 19.1% of the households containing married families with children. The county average for households married with children is 28.39%.
The median household income in Wadmalaw Island, South Carolina is $69,706. The median household income for the surrounding county is $70,807 compared to the national median of $69,021. The median age of people living in Wadmalaw Island is 51.6 years.
The average high temperature in July is 89.9 degrees, with an average low temperature in January of 40.4 degrees. The average rainfall is approximately 46.7 inches per year, with 0.4 inches of snow per year.