Floodplain Info
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Town Hall will close at 1pm on 12/23/25 in celebration of the Christmas Holiday. We will reopen on 12/29/25 at 8am.
Sign up for Everbridge, the Town’s Emergency Notification System, to receive emergency texts and emails, and the Town's Monthly Newsletter to stay up to date on all of Town's meetings, projects and special events.
The Town of Sullivan's Island has adopted mitigation strategies for all hazards that potentially impact the Town, including flooding. These strategies have been incorporated into the Charleston Regional Hazard Mitigation Plan, which is updated each year. The Plan shows the areas of possible flooding as well as proposed strategies to reduce the flood threat. The Charleston Regional Hazard Mitigation Plan is available for review at the Town Hall or online by visiting the Charleston County's Hazard Mitigation Webpage.