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Denton County, Texas

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

Relatively High overall risk
10th of 254highest risk in Texas
$355Mexpected losses a year
21federal declarations
1 in 143homes with flood insurance
Photo: Mahanga, CC BY 3.0

Denton County, Texas 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 10th of 254 counties in Texas. The costliest hazards here are tornadoes, inland flooding and hail. FEMA estimates about $355 million a year in expected losses, or roughly $392 per resident. Since 1974 it has been included in 21 federal disaster or emergency declarations for natural events (11 major disasters). The most recent was in May 2024 (severe storms, straight-line winds, tornadoes and flooding). Fewer than 1 in 100 homes here carry federal flood insurance (1,740 policies). Since 1978, federal flood insurance has paid about $11 million on 563 claims here.

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

Top risks in Denton County

Tornado

Very High
$145 million a yearExpected losses. Damaging events about once a year.
  • 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.
$119 million a yearExpected losses. Damaging events about 3 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.

Hail

Very High
$43 million a yearExpected losses. Damaging events about 10 times a year.
  • Ask about the roof age and any impact-rated shingles.
  • Check your home policy for a separate wind and hail deductible.
HazardRatingScoreExpected loss a year
TornadoVery High99.8
$145M
Inland floodingHigh95.7
$119M
HailVery High99.7
$43M
Heat waveHigh98.0
$20M
Cold waveHigh93.9
$14M
Strong windHigh92.7
$3M
Ice stormVery High97.2
$3M
WildfireModerate93.0
$3M
EarthquakeLow74.0
$1M
LightningModerate80.6
$1M
Winter weatherHigh86.2
$414K
HurricaneVery Low58.4
$236K
DroughtLow36.9
$69K
LandslideVery Low47.6
$2K

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

Federal disaster history

Recent disasters nationwide ›

Declarations by decade

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

By type

Severe Storm6
Fire5
Hurricane5
Flood2
Severe Ice Storm2
Drought1

Most recent

May 17, 2024Severe Storms, Straight-Line Winds, Tornadoes, and FloodingMajor disaster
Feb 19, 2021Severe Winter StormsMajor disaster
Feb 14, 2021Severe Winter StormEmergency
May 29, 2015Severe Storms, Tornadoes, Straight-Line Winds and FloodingMajor disaster
Sep 10, 2008Hurricane IkeEmergency
Aug 29, 2008Hurricane GustavEmergency
Mar 14, 2008WildfiresEmergency
Jun 29, 2007Severe Storms, Tornadoes, and FloodingMajor disaster
May 1, 2007Severe Storms and TornadoesMajor disaster
Jun 27, 2006North Trinity FireFire management
Show all 21
Jan 11, 2006Extreme Wildfire ThreatMajor disaster
Sep 24, 2005Hurricane RitaMajor disaster
Sep 21, 2005Hurricane RitaEmergency
Sep 2, 2005Hurricane Katrina EvacuationEmergency
Sep 1, 1999Extreme Fire HazardsEmergency
Aug 26, 1998Tropical Storm CharleyMajor disaster
Feb 23, 1996Extreme Fire HazardEmergency
Sep 10, 1993Extreme Fire HazardEmergency
May 2, 1990Severe Storms, Tornadoes & FloodingMajor disaster
May 19, 1989Severe Storms, Tornadoes & FloodingMajor disaster
Nov 30, 1974Severe Storms & FloodingMajor disaster

Texas also had 106 statewide declarations that did not name single counties.

Storm history since 1950

Tornado risk by county ›

The National Weather Service has logged 1,603 storm reports in Denton County since 1950, with 12 deaths and 26 injuries and about $975 million in reported damage. The strongest on record here was an F3 tornado on June 12, 1966.

58tornadoes
819hail reports, largest 5.9 inches
516damaging thunderstorm winds
155floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Jun 12, 1966F3–0 / 0
May 24, 2011EF2Argyle0 / 0
Apr 28, 1991F2–0 / 0
Apr 6, 1955F2–1 / 0
Nov 3, 1959F2–0 / 0

Most damaging storms

DateTypeNearDamage
Apr 3, 2014HailDenton$500M
Mar 24, 2021HailGiffhill$60M
Apr 11, 2016HailDenton$50M
Mar 23, 2016HailLewisville$50M
Mar 23, 2016HailLewisville$50M
Mar 24, 2021HailRoanoke Vly Arpt$50M

Source: NOAA Storm Events Database, county-based reports through Jun 19, 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 1900, 0 hurricanes and 3 tropical storms have passed within 65 miles of the center of Denton County, 1 of them since 1950. The strongest was an unnamed storm in 1900, with top winds near 55 mph about 63 miles away.

0hurricanes
0major hurricanes (Category 3+)
3tropical storms
1961most recent: Carla

Strongest storms nearby

DateStormStrengthClosest
Sep 9, 1900UnnamedTropical storm, 55 mph63 mi
Sep 12, 1961CarlaTropical storm, 45 mph53 mi
Jun 27, 1902UnnamedTropical storm, 40 mph61 mi

Most recent storms

DateStormStrengthClosest
Sep 12, 1961CarlaTropical storm, 45 mph53 mi
Jun 27, 1902UnnamedTropical storm, 40 mph61 mi
Sep 9, 1900UnnamedTropical storm, 55 mph63 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 Denton County

Check your address flood zone ›
0.7%of homes have federal flood insurance (1,740 policies)
27.7%of homes in mapped high-risk flood zones are insured
$10.5 millionpaid on 563 flood claims since 1978
2007costliest year, with $2 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 Denton County

$437,200median home value (Texas $283,800, US $332,700)
2003median year homes were built (Texas 1992, US 1980)
12%of homes built before 1980, before many modern wind, quake and flood building rules
2.4%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; 376,754 housing units.

Compare in Texas

All 254 ›
Largest countiesOverall riskTop hazard
Harris CountyVery HighInland flooding
Dallas CountyVery HighInland flooding
Tarrant CountyHighInland flooding
Bexar CountyHighInland flooding
Travis CountyHighInland flooding
Collin CountyHighTornado
Denton CountyHighTornado
Hidalgo CountyHighHurricane

Neighboring counties

CountyOverall riskDeclarations
Dallas CountyVery High25
Tarrant CountyHigh25
Collin CountyHigh17
Grayson CountyLow18
Wise CountyLow20
Cooke CountyLow20

Common questions about Denton County

What is the biggest natural hazard in Denton County?

Tornado has the highest expected yearly losses in Denton County, about $145 million a year in FEMA's estimate. Inland flooding is second at $119 million.

How many federal disasters has Denton County had?

Denton County has been included in 21 federal disaster or emergency declarations for natural events since 1974, including 11 major disasters. The most recent was Severe Storms, Straight-Line Winds, Tornadoes, and Flooding in May 2024.

Is Denton County a high-risk place to live?

Its overall rating is Relatively High, 10th highest of 254 in Texas. 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 Denton County?

Standard home insurance does not cover flooding. About 1 in 143 homes in Denton 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 Denton County had?

NOAA records list 58 tornadoes in Denton County since 1950. The strongest was an F3 tornado on June 12, 1966. The weather service has also logged 819 hail reports and 155 floods here.

How many hurricanes have hit Denton County?

NOAA's hurricane records show 0 hurricanes and 3 tropical storms passing within 65 miles of the center of Denton County. The strongest was an unnamed storm in 1900, with winds near 55 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.