St. Simons is a census-designated place/CDP. This place recognized by the United States Census Bureau for statistical purposes. It is basically located on St. Simons Island in Glynn County, Georgia, United States. The community and the island are mostly known to be one location that is "St. Simons Island." St. Simons is also part of the Brunswick, Georgia Metropolitan Statistical Area, with a population of 13,381 by the year 2000.

St. Simons Island is known as one of the Golden Isles. These isles are part of the four barrier islands, on the coast of Georgia, within the Atlantic Ocean. In fact it is also the largest of the other islands like the Sea Island, Jekyll Island, and Little St. Simons Island.

Visitors, residents that come in season, fulltime residents as well as retirees frequent this town or settle here due to its resort community.

Entering this place by air is made possible by the Malcolm McKinnon Airport just on the island.