Wilmington Island is an unincorporated community and census-designated place (CDP) in Chatham County, Georgia.

The communities of Wilmington Island form a large and affluent suburb of Savannah, where most residents work.

[5] Wilmington Island first appeared as a census designated place in the 1970 U.S.

[15] As of the 2020 United States census, there were 15,129 people, 6,478 households, and 4,322 families residing in the CDP.

[23] Students often attend school on nearby Whitemarsh Island.