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DeKalb County, Alabama

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

Relatively Low overall risk
21st of 67highest risk in Alabama
$32Mexpected losses a year
32federal declarations
1 in 500homes with flood insurance
Photo: U.S. Geological Survey, public domain

DeKalb County, Alabama has a relatively low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 80% of US counties. It ranks 21st of 67 counties in Alabama. The costliest hazards here are inland flooding, tornadoes and cold waves. FEMA estimates about $32 million a year in expected losses, or roughly $443 per resident. Since 1973 it has been included in 32 federal disaster or emergency declarations for natural events (23 major disasters). The most recent was in September 2024 (Hurricane Helene). Fewer than 1 in 100 homes here carry federal flood insurance (51 policies). Since 1978, federal flood insurance has paid about $1.0 million on 40 claims here, including $392,000 for floods in 2020.

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

Top risks in DeKalb County

$15.7 million a yearExpected losses. Damaging events about 2 times 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.

Tornado

Moderate
$4.7 million a yearExpected losses. Damaging events about once every 1 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.

Cold wave

Moderate
$4.3 million a yearExpected losses. Damaging events about once a year.
  • Insulate pipes in outside walls, crawl spaces and garages.
  • Know how to shut off the main water valve.
HazardRatingScoreExpected loss a year
Inland floodingModerate81.7
$16M
TornadoModerate88.3
$5M
Cold waveModerate87.6
$4M
EarthquakeLow85.6
$2M
Strong windHigh90.8
$2M
DroughtModerate87.3
$1M
Heat waveLow64.0
$516K
HurricaneLow69.7
$420K
LightningModerate73.3
$408K
HailLow55.3
$239K
WildfireLow73.8
$170K
Winter weatherModerate77.6
$136K
Ice stormModerate65.2
$125K
LandslideLow87.0
$29K

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 DeKalb County. 2020s bar runs to November 2026.

By type

Severe Storm18
Hurricane7
Flood3
Tornado1
Drought1
Snowstorm1

Most recent

Sep 26, 2024Hurricane HeleneEmergency
Sep 14, 2020Hurricane SallyEmergency
Jul 10, 2020Severe ThunderstormsMajor disaster
Apr 17, 2019Severe Storms, Straight-Line Winds, Tornadoes, and FloodingMajor disaster
Sep 11, 2017Hurricane IrmaEmergency
Jan 21, 2016Severe Storms, Tornadoes, Straight-Line Winds, and FloodingMajor disaster
May 2, 2014Severe Storms, Tornadoes, Straight-Line Winds, and FloodingMajor disaster
Apr 28, 2011Severe Storms, Tornadoes, Straight-Line Winds, and FloodingMajor disaster
Apr 27, 2011Severe Storms, Tornadoes, and Straight-Line WindsEmergency
May 3, 2010Severe Storms, Tornadoes, Straight-Line Winds, and FloodingMajor disaster
Show all 32
May 8, 2009Severe Storms, Flooding, Tornadoes, and Straight-Line WindsMajor disaster
Apr 28, 2009Severe Storms, Flooding, Tornadoes & Straight-LineMajor disaster
Aug 30, 2008Hurricane GustavEmergency
Sep 10, 2005Hurricane Katrina EvacuationEmergency
Sep 15, 2004Hurricane IvanMajor disaster
May 12, 2003Severe Storms, Tornadoes, and FloodingMajor disaster
Nov 14, 2002Severe Storms and TornadoesMajor disaster
Dec 7, 2001Severe Storms and TornadoesMajor disaster
Feb 18, 2000Severe Winter StormsMajor disaster
Sep 18, 1999Al - Lookout Mountain Fire - 09/18/99Fire management
Feb 23, 1996Severe Winter Storms, Ice and FloodingMajor disaster
Oct 4, 1995Hurricane OpalMajor disaster
Apr 21, 1995Severe Storms, Flooding and TornadoesMajor disaster
Mar 30, 1994Severe Storms, Tornado, and FloodingMajor disaster
Mar 3, 1994Severe Winter Storms, Freezing, FloodingMajor disaster
Mar 15, 1993Severe Snowfall, Winter StormEmergency
Feb 17, 1990Severe Storms, Tornadoes & FloodingMajor disaster
Apr 18, 1979Storms, Wind, FloodingMajor disaster
Jul 20, 1977DroughtEmergency
Apr 9, 1977Severe Storms & FloodingMajor disaster
May 29, 1973Severe Storms & FloodingMajor disaster
Mar 27, 1973Tornadoes & FloodingMajor disaster

Alabama also had 11 statewide declarations that did not name single counties.

Storm history since 1952

Tornado risk by county ›

The National Weather Service has logged 970 storm reports in DeKalb County since 1952, with 37 deaths and 168 injuries and about $32.3 million in reported damage. The strongest on record here was an EF5 tornado on April 27, 2011 near Ten Broeck.

74tornadoes
197hail reports, largest 2.75 inches
581damaging thunderstorm winds
84floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Apr 27, 2011EF5Ten Broeck0 / 25
Apr 27, 2011EF4Ider0 / 6
Mar 27, 1994F4Grove Oak To Rainsvil20 / 0
Apr 24, 2010EF4Rodentown5 / 0
May 19, 1973F4–19 / 0

Most damaging storms

DateTypeNearDamage
Mar 27, 1994TornadoGrove Oak To Rainsvil$5M
Apr 24, 2010TornadoRodgers$3M
Apr 24, 2010TornadoRodentown$3M
May 8, 1973Tornado–$3M
May 19, 1973Tornado–$3M
May 19, 1983Tornado–$3M

Source: NOAA Storm Events Database, county-based reports through May 20, 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 1892, 0 hurricanes and 8 tropical storms have passed within 65 miles of the center of DeKalb County, 4 of them since 1950. The strongest was Tropical Storm Zeta (2020), with top winds near 65 mph about 62 miles away.

0hurricanes
0major hurricanes (Category 3+)
8tropical storms
2020most recent: Zeta

Strongest storms nearby

DateStormStrengthClosest
Oct 29, 2020ZetaTropical storm, 65 mph62 mi
Sep 23, 1975EloiseTropical storm, 60 mph61 mi
Oct 5, 1995OpalTropical storm, 55 mph64 mi
Sep 13, 1892UnnamedTropical storm, 40 mph50 mi
Oct 3, 1898UnnamedTropical storm, 40 mph63 mi
Nov 1, 1985JuanTropical storm, 40 mph56 mi

Most recent storms

DateStormStrengthClosest
Oct 29, 2020ZetaTropical storm, 65 mph62 mi
Oct 5, 1995OpalTropical storm, 55 mph64 mi
Nov 1, 1985JuanTropical storm, 40 mph56 mi
Sep 23, 1975EloiseTropical storm, 60 mph61 mi
Sep 5, 1915UnnamedTropical storm, 40 mph57 mi
Jun 13, 1906UnnamedTropical storm, 40 mph65 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 DeKalb County

Check your address flood zone ›
0.2%of homes have federal flood insurance (51 policies)
7.2%of homes in mapped high-risk flood zones are insured
$1 millionpaid on 40 flood claims since 1978
2020costliest year, with $391,932 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 DeKalb County

$152,700median home value (Alabama $209,900, US $332,700)
1984median year homes were built (Alabama 1986, US 1980)
44%of homes built before 1980, before many modern wind, quake and flood building rules
22.2%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; 30,963 housing units.

Compare in Alabama

All 67 ›
Largest countiesOverall riskTop hazard
Jefferson CountyHighInland flooding
Mobile CountyHighHurricane
Madison CountyHighInland flooding
Baldwin CountyHighHurricane
Montgomery CountyModerateInland flooding
Tuscaloosa CountyModerateInland flooding
Shelby CountyModerateInland flooding
Lee CountyLowInland flooding

Neighboring counties

CountyOverall riskDeclarations
Etowah CountyModerate27
Marshall CountyModerate27
Walker County, GALow18
Jackson CountyLow26
Chattooga County, GALow14
Cherokee CountyLow23
Dade County, GAVery Low19

Common questions about DeKalb County

What is the biggest natural hazard in DeKalb County?

Inland flooding has the highest expected yearly losses in DeKalb County, about $15.7 million a year in FEMA's estimate. Tornado is second at $4.7 million.

How many federal disasters has DeKalb County had?

DeKalb County has been included in 32 federal disaster or emergency declarations for natural events since 1973, including 23 major disasters. The most recent was Hurricane Helene in September 2024.

Is DeKalb County a high-risk place to live?

Its overall rating is Relatively Low, 21st highest of 67 in Alabama. 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 DeKalb County?

Standard home insurance does not cover flooding. About 1 in 500 homes in DeKalb 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 DeKalb County had?

NOAA records list 74 tornadoes in DeKalb County since 1950. The strongest was an EF5 tornado on April 27, 2011 near Ten Broeck. The weather service has also logged 197 hail reports and 84 floods here.

How many hurricanes have hit DeKalb County?

NOAA's hurricane records show 0 hurricanes and 8 tropical storms passing within 65 miles of the center of DeKalb County. The strongest was Tropical Storm Zeta (2020), with winds near 65 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.