The Town offers a variety of tools and maps, including historic maps, to assist the homeowner in understanding the link between flood plain management and external factors such as shoreline and sea level changes. You may also view our Mapping Services page for additional interactive and static maps. Local staff are ready to assist you with any questions.  

Maps

Current Base Flood Elevation Map
This map will help you determine your current Base Flood Elevation. These maps were effective January 29, 2021. For more information regarding Flood Zone Designation please click here. 

 

 

 

 

 

Prior Flood Elevation Map
This map is for historical purposes only and will help you determine your flood zone. To determine your current Base Flood Elevation please click here. 

 

 

 

 

 Potential Storm Surge Inundation Model
 This document contains aerial views of Sullivan's Island with layers of illustrations that simulate different inundations of storm surge based on the Saffir-Simpson Hurricane Scale.

 

 

 Know Your Zone Map
This map helps you determine your evacuation zone. For more information on planning your evacuation route, please visit our Emergency Preparedness page. 

 

 

 

Links

The Town offers the following links to a number of county, state and federal agencies to further assist you with your flood plain management questions

Charleston County Resources

• Charleston County Floodplain Management
• Charleston County Geographic Information System (GIS)
• Charleston County Regional Hazard Mitigation Plan

South Carolina State Resources

• South Carolina Department of Health and Environmental Control Ocean & Coastal Resource Management
• South Carolina Department of Natural Resources Flood Mitigation Program
• South Carolina Emergency Management Division 

Federal Resources

• FEMA- National Flood Insurance Program
• FEMA- National Flood Insurance Program- Community Rating System
• FEMA- Flood Map Service Center
• FEMA- How and Why to Buy Flood Insurance

Shoreline & Sea Level Information

• National Oceanic and Atmospheric Administration- National Hurricane Center
• National Oceanic and Atmospheric Administration Office for Coastal Management Digital Coast
• U.S. Geological Survey Coastal Change Hazards

Climate Tools

• Climate Central's Surging Seas Analysis
• NatureServe- Ecosystem-Based MAnagement Tools Network

Additional Documentation

• A Homeowner's Guide to Flood Protection (PDF)
• Earthquakes: Are You Ready? (PDF)
• Flooding: Are You Prepared? (PDF) 
• Know Before You Buy: Flood Risk During Home Buying (PDF)
• Safeguarding Your Personal Property from Flooding (PDF)
• Staying Safe: A Guide for Visitors of Charleston (PDF)