Sullivan's Island

Key facts

Country

United States

State

South Carolina

County

Charleston

Settled

17th century (as O'Sullivan's Island)

Named after

Captain Florence O'Sullivan

Total

3.44 sq mi (8.91 km )

Land

2.50 sq mi (6.47 km )

Water

0.94 sq mi (2.44 km )

Elevation

0 ft (0 m)

Density

757.0/sq mi (292.28/km )

Time zone

UTC−5 ( EST )

Summer dst

UTC−4 (EDT)

Area codes