FEMA rates relative hurricane risk for Chatham County as very high and reports FEMA annualized frequency of 0.391 per year for the area.
FEMA summary
FEMA's profile for Chatham County reports FEMA annualized frequency of 0.391 per year for hurricane. FEMA's relative risk rating for the area is very high; the annualized frequency is a separate measure.
Hazard metrics cover FEMA county-equivalent geographies rather than individual addresses or parcels. Use local or state hazard maps before making a property, insurance, retrofit, or evacuation decision.
Select a hazard to inspect FEMA's figures for Chatham County.
Hurricane
FEMA combines its area-wide loss estimate and community data in this relative rating. Event frequency appears separately below.
Relative FEMA score
99.5/100
Occurrence thresholds vary by hazard. The FEMA methodology defines the value for each hazard.
The area loss estimate combines FEMA's modeled losses to buildings, population, and agriculture across Chatham County. It is not an estimate for a home or address.
City risk summary
For Savannah, FEMA rates hurricane risk for Chatham County as very high, with a relative score of 99.5/100. The next highest relative scores are lightning at 97.7/100 and wildfire at 95.8/100.
Using FEMA data for Chatham County, Savannah is #1 among 13 covered Georgia entries for hurricane risk. North Charleston is about 89 straight-line miles from the Savannah map point; its FEMA figures cover Charleston County.
For homeowners and movers
Preparedness actions
Living in Savannah? Learn how to handle water storage, sanitation, and security in a small space.
The map shows Savannah. All FEMA figures on this page cover Chatham County.
The FEMA figures cover Chatham County. Address-level conditions require local maps, building records, and property details.
FEMA rates relative hurricane risk for Chatham County as very high. Its FEMA annualized frequency is 0.391 per year. Damage at a specific address also depends on the building, soil, elevation, and exact hazard zone.
Among 13 Georgia cities covered by this directory, Savannah is #1 for relative hurricane risk based on FEMA's score for Chatham County. Homes within Savannah can have different soil, elevation, construction, and hazard-zone conditions.
In FEMA's data for Chatham County, the highest relative ratings are Hurricane (Very High), Lightning (Relatively High), and Wildfire (Relatively Moderate). FEMA uses estimated losses and community data along with event frequency when assigning these ratings.
The hazard numbers cover Chatham County. For an individual home, check local fault, flood, fire, evacuation, and building records for the exact address.
FEMA gives Chatham County an overall relative risk rating of relatively high. Conditions at a specific home depend on its hazard zones, building type, maintenance, insurance, and access to evacuation routes and emergency services.
Start with this step: Confirm the exact hazard using official local maps before making property or insurance decisions. Know how local officials issue warnings and evacuation instructions. Use Ready.gov Be Informed and local emergency guidance for a complete plan.
Distances are measured between city coordinates.
| City | Distance | Hurricane rating | Relative score |
|---|---|---|---|
| North Charleston, SC | 89 mi | Very High | 99.6 |
| Charleston, SC | 89 mi | Very High | 99.6 |
| Mount Pleasant, SC | 98 mi | Very High | 99.6 |
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View productHazard metrics come from FEMA National Risk Index v1.19.0 (March 2023). City population and coordinates come from SimpleMaps US Cities Database. For current conditions, use official local maps, warnings, inspections, and professional advice.