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Gilmer County, Georgia

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

Relatively Low overall risk
29th of 159highest risk in Georgia
$19Mexpected losses a year
19federal declarations
1 in 83homes with flood insurance
Photo: U.S. Geological Survey, public domain

Gilmer County, Georgia has a relatively low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 68% of US counties. It ranks 29th of 159 counties in Georgia. The costliest hazards here are inland flooding, cold waves and tornadoes. FEMA estimates about $19 million a year in expected losses, or roughly $617 per resident. Since 1974 it has been included in 19 federal disaster or emergency declarations for natural events (11 major disasters). The most recent was in October 2026 (Hurricane Isaias). About 1 in 83 homes here carry federal flood insurance (207 policies). Since 1978, federal flood insurance has paid about $5.2 million on 199 claims here, including $2.6 million for floods in 2004.

FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.

Top risks in Gilmer County

$11.7 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.

Cold wave

Moderate
$2.7 million a yearExpected losses. Damaging events about 2 times a year.
  • Insulate pipes in outside walls, crawl spaces and garages.
  • Know how to shut off the main water valve.

Tornado

Moderate
$2.2 million a yearExpected losses. Damaging events about once every 4 years.
  • Pick a shelter spot: a basement, or an inside room on the lowest floor with no windows.
  • Turn on emergency alerts on your phone and keep a weather radio.
HazardRatingScoreExpected loss a year
Inland floodingModerate75.3
$12M
Cold waveModerate80.7
$3M
TornadoModerate75.3
$2M
EarthquakeLow72.0
$654K
LightningModerate80.3
$521K
Strong windModerate59.0
$509K
HailLow58.0
$253K
DroughtLow62.2
$230K
HurricaneLow59.6
$141K
WildfireLow71.3
$135K
LandslideModerate95.9
$118K
Ice stormLow53.1
$70K
Winter weatherLow30.6
$22K
Heat waveVery Low7.0
$7K

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 high and community resilience is very low in FEMA's measures.

Federal disaster history

Recent disasters nationwide ›

Declarations by decade

Federal declarations for natural events that included Gilmer County. 2020s bar runs to November 2026.

By type

Hurricane7
Severe Storm4
Severe Ice Storm2
Tropical Storm2
Tornado1
Flood1

Most recent

Oct 9, 2026Hurricane IsaiasEmergency
Jan 24, 2026Severe Winter StormEmergency
Sep 30, 2024Hurricane HeleneMajor disaster
Sep 26, 2024Hurricane HeleneEmergency
May 5, 2021Severe Storms and TornadoesMajor disaster
Jan 12, 2021Tropical Storm ZetaMajor disaster
Sep 15, 2017Hurricane IrmaMajor disaster
Sep 8, 2017Hurricane IrmaEmergency
Feb 26, 2016Severe Storms and FloodingMajor disaster
Mar 6, 2014Severe Winter StormMajor disaster
Show all 19
Feb 11, 2014Severe Winter StormEmergency
Sep 5, 2005Hurricane Katrina EvacuationEmergency
Sep 18, 2004Hurricane IvanMajor disaster
Jan 28, 2000Severe Winter StormMajor disaster
Oct 10, 1995Hurricane OpalMajor disaster
Mar 15, 1993Severe Snowfall, Winter StormEmergency
Feb 23, 1990Severe Storms, Tornaodes & FloodingMajor disaster
Mar 13, 1979Rain, Flooding, MudslideEmergency
Apr 5, 1974TornadoesMajor disaster

Georgia also had 8 statewide declarations that did not name single counties.

Storm history since 1961

Tornado risk by county ›

The National Weather Service has logged 241 storm reports in Gilmer County since 1961, with 1 death and 10 injuries and about $18.2 million in reported damage. The strongest on record here was an F2 tornado on April 3, 1974.

17tornadoes
58hail reports, largest 2.75 inches
126damaging thunderstorm winds
30floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Apr 3, 1974F2–3 / 0
Mar 30, 1977F2–4 / 0
Apr 4, 2011EF1Roundtop0 / 0
Mar 16, 1973F1–0 / 0
Feb 18, 1976F1–0 / 0

Most damaging storms

DateTypeNearDamage
Sep 16, 2004Flash FloodCountywide$3M
Apr 3, 1974Tornado–$3M
Jul 5, 2012Thunderstorm WindTails Creek$2M
Aug 1, 2013Flash FloodCartecay$2M
Aug 1, 2013Flash FloodSnider$2M
Dec 24, 2015Flash FloodElders$1M

Source: NOAA Storm Events Database, county-based reports through May 20, 2025. 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 1915, 0 hurricanes and 4 tropical storms have passed within 65 miles of the center of Gilmer County, 3 of them since 1950. The strongest was Tropical Storm Zeta (2020), with top winds near 60 mph about 30 miles away.

0hurricanes
0major hurricanes (Category 3+)
4tropical storms
2024most recent: Helene

Strongest storms nearby

DateStormStrengthClosest
Oct 29, 2020ZetaTropical storm, 60 mph30 mi
Sep 23, 1975EloiseTropical storm, 60 mph62 mi
Sep 27, 2024HeleneTropical storm, 50 mph56 mi
Sep 5, 1915UnnamedTropical storm, 40 mph48 mi

Most recent storms

DateStormStrengthClosest
Sep 27, 2024HeleneTropical storm, 50 mph56 mi
Oct 29, 2020ZetaTropical storm, 60 mph30 mi
Sep 23, 1975EloiseTropical storm, 60 mph62 mi
Sep 5, 1915UnnamedTropical storm, 40 mph48 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 Gilmer County

Check your address flood zone ›
1.2%of homes have federal flood insurance (207 policies)
22.7%of homes in mapped high-risk flood zones are insured
$5.2 millionpaid on 199 flood claims since 1978
2004costliest year, with $2.6 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 Gilmer County

$314,000median home value (Georgia $303,300, US $332,700)
1998median year homes were built (Georgia 1992, US 1980)
16%of homes built before 1980, before many modern wind, quake and flood building rules
14%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; 18,507 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
Gordon CountyLow17
Murray CountyLow14
Pickens CountyVery Low21
Dawson CountyVery Low18
Fannin CountyLow17

Common questions about Gilmer County

What is the biggest natural hazard in Gilmer County?

Inland flooding has the highest expected yearly losses in Gilmer County, about $11.7 million a year in FEMA's estimate. Cold wave is second at $2.7 million.

How many federal disasters has Gilmer County had?

Gilmer County has been included in 19 federal disaster or emergency declarations for natural events since 1974, including 11 major disasters. The most recent was Hurricane Isaias in October 2026.

Is Gilmer County a high-risk place to live?

Its overall rating is Relatively Low, 29th 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 Gilmer County?

Standard home insurance does not cover flooding. About 1 in 83 homes in Gilmer 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 Gilmer County had?

NOAA records list 17 tornadoes in Gilmer County since 1950. The strongest was an F2 tornado on April 3, 1974. The weather service has also logged 58 hail reports and 30 floods here.

How many hurricanes have hit Gilmer County?

NOAA's hurricane records show 0 hurricanes and 4 tropical storms passing within 65 miles of the center of Gilmer County. The strongest was Tropical Storm Zeta (2020), with winds near 60 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.