Chatham County, Georgia
Natural disaster risk, federal disaster history and flood insurance facts.
Chatham County, Georgia has a relatively high overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 97% of US counties. It ranks 1st of 159 counties in Georgia. The costliest hazards here are hurricanes, inland flooding and coastal flooding. FEMA estimates about $277 million a year in expected losses, or roughly $943 per resident. Since 1977 it has been included in 17 federal disaster or emergency declarations for natural events (7 major disasters). The most recent was in September 2024 (Hurricane Helene). About 1 in 5 homes here carry federal flood insurance (19,764 policies). Since 1978, federal flood insurance has paid about $82 million on 5,467 claims here, including $29 million for floods in 2017.
FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.
Top risks in Chatham County
- Know your evacuation zone and route before June 1.
- Ask about roof age, shutters and the separate wind or hurricane deductible on your home policy.
- Check the FEMA flood map for your address, and ask the seller or landlord about past flooding.
- Price a flood policy now. Most new federal policies take 30 days to start.
- Learn your evacuation zone; it is set by surge risk, not by distance from the beach.
- Ask about flood insurance even outside a mapped high-risk zone.
All 18 hazards
What the ratings mean ›| Hazard | Rating | Score | Expected loss a year | |
|---|---|---|---|---|
| Hurricane | 99.4 | $189M | ||
| Inland flooding | 90.8 | $42M | ||
| Coastal flooding | 96.0 | $13M | ||
| Earthquake | 94.4 | $12M | ||
| Heat wave | 95.3 | $6M | ||
| Cold wave | 79.7 | $4M | ||
| Tornado | 77.4 | $3M | ||
| Wildfire | 92.4 | $2M | ||
| Lightning | 95.4 | $2M | ||
| Strong wind | 80.5 | $1M | ||
| Ice storm | 89.6 | $891K | ||
| Hail | 69.1 | $532K | ||
| Winter weather | 67.9 | $120K | ||
| Drought | 37.8 | $54K | ||
| Landslide | 18.8 | $102 |
Scores are percentiles: a score of 90 means higher risk than about 90% of US counties for that hazard. Hazards FEMA does not rate here are left out. Social vulnerability is relatively moderate and community resilience is very high in FEMA's measures.
Federal disaster history
Recent disasters nationwide ›Declarations by decade
Federal declarations for natural events that included Chatham County. 2020s bar runs to November 2026.
By type
Most recent
Show all 17
Georgia also had 8 statewide declarations that did not name single counties.
Storm history since 1955
Tornado risk by county ›The National Weather Service has logged 998 storm reports in Chatham County since 1955, with 5 deaths and 66 injuries and about $24.7 million in reported damage. The strongest on record here was an F2 tornado on November 9, 1973.
Strongest tornadoes
| Date | Strength | Near | Hurt / killed |
|---|---|---|---|
| Nov 9, 1973 | F2 | – | 0 / 0 |
| May 23, 1980 | F2 | – | 2 / 0 |
| Sep 13, 1961 | F2 | – | 0 / 0 |
| May 25, 1970 | F2 | – | 0 / 0 |
| May 23, 2017 | EF2 | Wilmington Is | 0 / 0 |
Most damaging storms
| Date | Type | Near | Damage |
|---|---|---|---|
| Jun 29, 1999 | Flash Flood | East Portion | $7M |
| Jun 19, 2008 | Tornado | Sandfly | $3M |
| Apr 9, 1979 | Tornado | – | $3M |
| Jun 22, 2004 | Lightning | Wilmington Is | $2M |
| Aug 24, 2019 | Lightning | Fairway Oaks | $2M |
| Sep 3, 1998 | Thunderstorm Wind | Countywide | $1M |
Source: NOAA Storm Events Database, county-based reports through Jul 14, 2026. Tornado records start in 1950, hail and wind in 1955, and floods and other storm types in 1996, so older decades undercount. Damage is in dollars of the year it happened and is often an estimate. Winter storms, heat and hurricanes are logged by forecast zone, not county, so they are not counted here.
Hurricanes and tropical storms
Hurricane risk by county ›Since 1852, 22 hurricanes and 57 tropical storms have passed within 65 miles of the center of Chatham County, 29 of them since 1950. The strongest was Hurricane Gracie (1959), with top winds near 130 mph about 64 miles away.
Strongest storms nearby
| Date | Storm | Strength | Closest |
|---|---|---|---|
| Sep 29, 1959 | Gracie | Category 4, 130 mph | 64 mi |
| Oct 13, 1893 | Unnamed | Category 3, 120 mph | 55 mi |
| Aug 28, 1893 | Unnamed | Category 3, 115 mph | 58 mi |
| Sep 8, 1854 | Unnamed | Category 3, 115 mph | 62 mi |
| Oct 8, 2016 | Matthew | Category 2, 105 mph | 64 mi |
| Oct 15, 1947 | Unnamed | Category 2, 105 mph | 55 mi |
Most recent storms
| Date | Storm | Strength | Closest |
|---|---|---|---|
| Aug 6, 2024 | Debby | Tropical storm, 50 mph | 63 mi |
| Aug 30, 2023 | Idalia | Tropical storm, 65 mph | 52 mi |
| Jul 1, 2022 | Colin | Tropical storm, 40 mph | 45 mi |
| Jun 28, 2021 | Danny | Tropical storm, 45 mph | 65 mi |
| Nov 12, 2020 | Eta | Tropical storm, 45 mph | 58 mi |
| Oct 8, 2016 | Matthew | Category 2, 105 mph | 64 mi |
Source: NOAA National Hurricane Center best-track records (HURDAT2), 1851 to 2025 for the Atlantic and 1949 to 2025 for the eastern Pacific. A storm counts if its track passed within 65 miles of the county's center while it was a tropical storm or hurricane. Strength is the storm's top sustained wind at that point, not the wind measured in the county. Older storms over the open sea were sometimes missed.
Flood insurance in Chatham County
Check your address flood zone ›National Flood Insurance Program (NFIP) records only; private flood policies are not included. Home counts as of Aug 3, 2026. Since 2021 NFIP prices each home separately under Risk Rating 2.0, so your price depends on the building, not the county. Ask an agent for a quote.
Homes in Chatham County
Older homes and mobile homes usually suffer more damage in storms, floods and earthquakes, and can cost more to insure. If you are buying, ask about roof age, foundation bolting and any retrofits. Source: US Census Bureau, American Community Survey 2020 to 2024 5-year estimates; 137,532 housing units.
Compare in Georgia
All 159 ›| Largest counties | Overall risk | Top hazard |
|---|---|---|
| Fulton County | Inland flooding | |
| Gwinnett County | Inland flooding | |
| Cobb County | Inland flooding | |
| DeKalb County | Inland flooding | |
| Clayton County | Inland flooding | |
| Chatham County | Hurricane | |
| Cherokee County | Inland flooding | |
| Forsyth County | Inland flooding |
Neighboring counties
| County | Overall risk | Declarations |
|---|---|---|
| Liberty County | 16 | |
| Effingham County | 15 | |
| Bryan County | 19 | |
| Jasper County, SC | 22 |
Cities in Chatham County
Common questions about Chatham County
What is the biggest natural hazard in Chatham County?
Hurricane has the highest expected yearly losses in Chatham County, about $189 million a year in FEMA's estimate. Inland flooding is second at $41.9 million.
How many federal disasters has Chatham County had?
Chatham County has been included in 17 federal disaster or emergency declarations for natural events since 1977, including 7 major disasters. The most recent was Hurricane Helene in September 2024.
Is Chatham County a high-risk place to live?
Its overall rating is Relatively High, 1st highest of 159 in Georgia. A county rating covers the whole area. Risk at one address can be much higher or lower, so check the FEMA flood map and ask about the home's history.
Do I need flood insurance in Chatham County?
Standard home insurance does not cover flooding. About 1 in 5 homes in Chatham County has federal flood insurance. Lenders require it in mapped high-risk zones, but many flood claims come from outside those zones.
How many tornadoes has Chatham County had?
NOAA records list 32 tornadoes in Chatham County since 1950. The strongest was an F2 tornado on November 9, 1973. The weather service has also logged 183 hail reports and 102 floods here.
How many hurricanes have hit Chatham County?
NOAA's hurricane records show 22 hurricanes and 57 tropical storms passing within 65 miles of the center of Chatham County, including 4 major hurricanes (Category 3 or stronger). The strongest was Hurricane Gracie (1959), with winds near 130 mph.
Sources: FEMA National Risk Index (December 2025), OpenFEMA Disaster Declarations Summaries, and NFIP policy and claims data. Hazard Compass is independent and not affiliated with FEMA. These figures describe the whole county, not a single property, and are not insurance or safety advice. Report a problem.