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Town Hall will close on Friday, May 27th at 2pm in observance of Memorial Day. Town Hall will re-open on Tuesday, May 31st at 8am. All essential first responder services will remain fully staffed. Regular trash pickup will occur on Wednesday, June 1st and Saturday, June 4th. Bulk pickup, yard debris and recycling will be collected on Thursday, June 2nd.  

Attention Residents! 
In September 2022 several seats on various Boards and Commissions will expire. Residents are encouraged to participate in the community through a three-year commitment to one of the various Boards or Commission. Click here to view available seats and applications. For further information on the function of each Board or Commission contact Andy Benke abenke@sullivansisland.sc.gov; Joe Henderson jhenderson@sullivansisland.sc.gov or Charles Drayton cdrayton@sullivansisland.sc.gov.

Local Conditions, Natural & Beneficial Functions of a Floodplain

Sullivan's Island is located about 3.5 miles northeast of Charleston.  The Island is about 2 1/2 miles long and about 1/2 mile wide at its widest point.  The total area within the Town limits is about 2,000 acres of high ground, with an additional 1,100 acres in marshland.

Sullivan's Island is located in the outer coastal plain, a portion of the Atlantic coastal plain made up of barrier islands unique to the coastal areas of the southeastern United States.  The area is relatively flat, except for large man-made mounds built by the US Army when stationed on the Island.  The Town's elevation ranges from seal-level to about fourteen (14') feet above sea level, with a wide range between high and low tides.

The Federal Emergency Management Agency (FEMA) has mapped Sullivan's Island identifying various areas of flood hazards.  Areas located in VE zones are subject to inundation by the one (1%) percent flood level with additional hazards due to velocity (wave action).  Areas located in AE zones are subject to inundation by the one (1%) percent flood level determined in a Flood Insurance Study.  Base flood elevations are shown within these zones and mandatory flood insurance purchase requirements apply.

Oceanfront property is located in a VE flood zone with the flood elevation ranging from 15 to 23 feet, depending on the location of the property.  The eastern end of the Island is located in the higher VE flood zone with flood elevation ranging from 19 to 23 feet.  A portion of the commercial properties located between Station 22 and 22 1/2 are located in the VE elevation 16 flood zone.  The middle and marsh sides of the Island are generally located within an AE flood zone with the flood elevation ranging from 13 to 15 feet.