Sea Islands

For the GPU family, see Sea Islands (GPU family).
Map of the Sea Islands

The Sea Islands are a chain of tidal and barrier islands on the Southeastern Atlantic Ocean coast of the United States. Numbering over 100, they are located between the mouths of the Santee and St. Johns Rivers along the coast of the US states of South Carolina, Georgia, and Florida.


Settled by indigenous cultures over thousands of years, the islands were selected by Spanish colonists as sites for founding of colonial missions. Historically the Spanish influenced the Guale and Mocama chiefdoms by establishing Christian missions in their major settlements, from St. Catherine's Island south to Fort George Island (at present-day Jacksonville, Florida).[1] Both chiefdoms extended to the coastal areas on the mainland. The Mocama Province included territory to the St. Johns River in present-day Florida. The mission system ended under pressure of repeated raids by English South Carolina colonists and Indian allies. Spain ceded its territory of Florida to Great Britain in 1763 following the British victory against the French in the Seven Years' War, which resulted in Britain taking over all French territory east of the Mississippi River.

After 18th-century European-American settlement of Georgia and Florida, planters imported enslaved Africans as laborers. Many were used to work the labor-intensive cotton, rice and indigo plantations on the Sea Islands, which generated much of the wealth of the colony and state. The slaves developed the notable and distinct Gullah/Geechee Creole culture and language which has survived to contemporary times. The islands now are known for resort, recreational, and residential development.

During the American Civil War, the Union Navy and the Union Army soon occupied the islands. The white planter families had fled to other locations on the mainland, sometimes leaving behind their slaves. The slaves largely ran their own lives during this period. They had already created cohesive communities, because planter families often stayed on the mainland to avoid malaria and the isolation of the islands. Large numbers of slaves worked on the rice and indigo plantations, and had limited interaction with whites, which enabled them to develop their own distinct culture. During the war, the Union Army managed the plantations and assigned plots of land to slaves for farming.

After President Abraham Lincoln's Emancipation Proclamation became effective on January 1, 1863, more than 5,000 slaves on Union-occupied islands obtained their freedom.[2] After the war, although the freedmen hoped to be given land as compensation for having worked it for so many years in slavery, the federal government generally returned properties to the planters returning from their refuges or exile. Many of the freedmen stayed in the area, working on their former plantations as sharecroppers, tenant farmers or laborers as the system changed to free labor.

In 1893 the islands were damaged by the Sea Islands Hurricane.

In the 1950s and 1960s the Sea Islands, like other Afro-American communities, were the scene of intensive activity by the Civil Rights Movement, of which a prominent local leader was Esau Jenkins.

Major Sea Islands

South Carolina

Sea Islands in Charleston County

Sea Islands in Colleton County

Sea Islands in Beaufort County

  • Bay Point Island
  • Cane Island
  • Cat Island
  • Coosaw Island
  • Dataw Island
  • Daufuskie Island
  • Distant Island


Sea Islands in Chatham County

Sea Islands in Liberty County

Sea Islands in McIntosh County

Sea Islands in Glynn County (the Golden Isles)

Sea Islands in Camden County



  1. "Mission Santa Catalina de Guale", New Georgia Encyclopedia, 2008, accessed 13 May 2010
  2. William Klingaman, Abraham Lincoln and the Road to Emancipation, 1861-1865 (NY: Viking Press, 2001), p. 234

Coordinates: 32°10′44″N 80°44′34″W / 32.1788°N 80.7429°W / 32.1788; -80.7429

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