Home › Georgia › Chatham County

Chatham County, Georgia

Natural disaster risk, federal disaster history and flood insurance facts.

Relatively High overall risk
1st of 159highest risk in Georgia
$277Mexpected losses a year
17federal declarations
1 in 5homes with flood insurance
Photo: Tjbliss, CC BY 4.0

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

Hurricane

Very High
$189 million a yearExpected losses. Damaging events about once every 3 years.
  • 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.
$41.9 million a yearExpected losses. Damaging events about once a year.
  • 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.
$13.1 million a yearExpected losses. Damaging events about 4 times a year.
  • 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.
HazardRatingScoreExpected loss a year
HurricaneVery High99.4
$189M
Inland floodingModerate90.8
$42M
Coastal floodingVery High96.0
$13M
EarthquakeModerate94.4
$12M
Heat waveModerate95.3
$6M
Cold waveModerate79.7
$4M
TornadoModerate77.4
$3M
WildfireModerate92.4
$2M
LightningHigh95.4
$2M
Strong windModerate80.5
$1M
Ice stormHigh89.6
$891K
HailLow69.1
$532K
Winter weatherModerate67.9
$120K
DroughtLow37.8
$54K
LandslideVery Low18.8
$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

Hurricane9
Tropical Storm3
Severe Storm2
Freezing1
Drought1
Snowstorm1

Most recent

Sep 30, 2024Hurricane HeleneMajor disaster
Sep 26, 2024Hurricane HeleneEmergency
Sep 24, 2024Tropical Storm DebbyMajor disaster
Aug 5, 2024Hurricane DebbyEmergency
Sep 1, 2019Hurricane DorianEmergency
Oct 10, 2018Hurricane MichaelEmergency
Sep 15, 2017Hurricane IrmaMajor disaster
Sep 8, 2017Hurricane IrmaEmergency
Oct 8, 2016Hurricane MatthewMajor disaster
Oct 6, 2016Hurricane MatthewEmergency
Show all 17
Sep 5, 2005Hurricane Katrina EvacuationEmergency
Sep 14, 1999Hurricane Floyd Emergency DeclarationsEmergency
Mar 11, 1998Severe Storms and FloodingMajor disaster
Oct 19, 1994Heavy Rains, Tornados, Flooding, High WindsMajor disaster
Mar 15, 1993Severe Snowfall, Winter StormEmergency
Jul 20, 1977DroughtEmergency
Jun 2, 1977Shrimp Loss Due to Cold WeatherMajor disaster

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.

32tornadoes
183hail reports, largest 3.5 inches
623damaging thunderstorm winds
102floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Nov 9, 1973F2–0 / 0
May 23, 1980F2–2 / 0
Sep 13, 1961F2–0 / 0
May 25, 1970F2–0 / 0
May 23, 2017EF2Wilmington Is0 / 0

Most damaging storms

DateTypeNearDamage
Jun 29, 1999Flash FloodEast Portion$7M
Jun 19, 2008TornadoSandfly$3M
Apr 9, 1979Tornado–$3M
Jun 22, 2004LightningWilmington Is$2M
Aug 24, 2019LightningFairway Oaks$2M
Sep 3, 1998Thunderstorm WindCountywide$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.

22hurricanes
4major hurricanes (Category 3+)
57tropical storms
2024most recent: Debby

Strongest storms nearby

DateStormStrengthClosest
Sep 29, 1959GracieCategory 4, 130 mph64 mi
Oct 13, 1893UnnamedCategory 3, 120 mph55 mi
Aug 28, 1893UnnamedCategory 3, 115 mph58 mi
Sep 8, 1854UnnamedCategory 3, 115 mph62 mi
Oct 8, 2016MatthewCategory 2, 105 mph64 mi
Oct 15, 1947UnnamedCategory 2, 105 mph55 mi

Most recent storms

DateStormStrengthClosest
Aug 6, 2024DebbyTropical storm, 50 mph63 mi
Aug 30, 2023IdaliaTropical storm, 65 mph52 mi
Jul 1, 2022ColinTropical storm, 40 mph45 mi
Jun 28, 2021DannyTropical storm, 45 mph65 mi
Nov 12, 2020EtaTropical storm, 45 mph58 mi
Oct 8, 2016MatthewCategory 2, 105 mph64 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 ›
20.6%of homes have federal flood insurance (19,764 policies)
81.5%of homes in mapped high-risk flood zones are insured
$82 millionpaid on 5,467 flood claims since 1978
2017costliest year, with $28.6 million paid

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

$302,700median home value (Georgia $303,300, US $332,700)
1986median year homes were built (Georgia 1992, US 1980)
42%of homes built before 1980, before many modern wind, quake and flood building rules
3.5%of homes are mobile homes, which are the least safe in tornadoes and high winds

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 countiesOverall riskTop hazard
Fulton CountyHighInland flooding
Gwinnett CountyHighInland flooding
Cobb CountyHighInland flooding
DeKalb CountyModerateInland flooding
Clayton CountyModerateInland flooding
Chatham CountyHighHurricane
Cherokee CountyModerateInland flooding
Forsyth CountyModerateInland flooding

Neighboring counties

CountyOverall riskDeclarations
Liberty CountyModerate16
Effingham CountyLow15
Bryan CountyLow19
Jasper County, SCLow22

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.