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Monroe County, Florida

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

Relatively Moderate overall risk
28th of 67highest risk in Florida
$93Mexpected losses a year
44federal declarations
1 in 2homes with flood insurance
Photo: CC0

Monroe County, Florida has a moderate overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 92% of US counties. It ranks 28th of 67 counties in Florida. The costliest hazards here are hurricanes, coastal flooding and inland flooding. FEMA estimates about $93 million a year in expected losses, or roughly $1,132 per resident. Since 1965 it has been included in 44 federal disaster or emergency declarations for natural events (26 major disasters). The most recent was in October 2024 (Hurricane Milton). About 58% homes here carry federal flood insurance (22,181 policies). Since 1978, federal flood insurance has paid about $714 million on 27,430 claims here, including $337 million for floods in 2005.

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

Top risks in Monroe County

$65.1 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.
$21 million a yearExpected losses. Damaging events about 2 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.
$4.7 million a yearExpected losses. Damaging events about once every 2 years.
  • 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.
HazardRatingScoreExpected loss a year
HurricaneHigh98.0
$65M
Coastal floodingVery High98.8
$21M
Inland floodingLow42.9
$5M
LightningHigh87.1
$906K
Heat waveLow65.8
$668K
TornadoVery Low25.6
$338K
Strong windLow32.4
$284K
WildfireVery Low61.9
$85K
HailVery Low16.8
$52K
Cold waveVery Low4.1
$6K
EarthquakeVery Low6.4
$5K
LandslideVery Low18.0
$81

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 relatively low in FEMA's measures.

Federal disaster history

Recent disasters nationwide ›

Declarations by decade

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

By type

Hurricane26
Severe Storm6
Fire4
Freezing3
Tropical Storm3
Coastal Storm1

Most recent

Oct 11, 2024Hurricane MiltonMajor disaster
Oct 7, 2024Hurricane MiltonEmergency
Sep 28, 2024Hurricane HeleneMajor disaster
Sep 24, 2024Tropical Storm HeleneEmergency
Aug 10, 2024Hurricane DebbyMajor disaster
Aug 3, 2024Tropical Storm DebbyEmergency
Sep 29, 2022Hurricane IanMajor disaster
Sep 24, 2022Tropical Storm IanEmergency
Jul 4, 2021Tropical Storm ElsaEmergency
Aug 1, 2020Hurricane IsaiasEmergency
Show all 44
Aug 30, 2019Hurricane DorianEmergency
Sep 10, 2017Hurricane IrmaMajor disaster
Sep 5, 2017Hurricane IrmaEmergency
Oct 6, 2016Hurricane MatthewEmergency
Oct 18, 2012Hurricane IsaacMajor disaster
Sep 7, 2008Hurricane IkeEmergency
Aug 24, 2008Tropical Storm FayMajor disaster
Aug 21, 2008Tropical Storm FayEmergency
Oct 24, 2005Hurricane WilmaMajor disaster
Sep 20, 2005Tropical Storm RitaEmergency
Sep 5, 2005Hurricane Katrina EvacuationEmergency
Aug 28, 2005Hurricane KatrinaMajor disaster
Jul 10, 2005Hurricane DennisMajor disaster
Sep 16, 2004Hurricane IvanMajor disaster
Sep 4, 2004Hurricane FrancesMajor disaster
Aug 13, 2004Tropical Storm Bonnie and Hurricane CharleyMajor disaster
Apr 25, 2001Fl - Everglades Fire Complex - 04/25/01Fire management
Feb 5, 2001Severe FreezeMajor disaster
Oct 4, 2000Severe Storms and FloodingMajor disaster
Oct 20, 1999Fl-Hurricane Irene-Dr-ReqMajor disaster
Oct 15, 1999Tropical Storm Irene - FloridaEmergency
Apr 27, 1999Fl-Fires 04/15/99Emergency
Apr 18, 1999Fl-Fires 04/13/99Fire management
Nov 6, 1998Tropical Storm MitchMajor disaster
Sep 28, 1998Hurricane GeorgesMajor disaster
Sep 25, 1998Hurricane GrorgesEmergency
Jun 18, 1998Extreme Fire HazardMajor disaster
Feb 12, 1998Severe Storms, High Winds, Tornadoes, and FloodingMajor disaster
Mar 13, 1993Tornadoes, Flooding, High Winds & Tides, FreezingMajor disaster
Aug 24, 1992Hurricane AndrewMajor disaster
Jan 15, 1990Severe FreezeMajor disaster
Jan 31, 1977Severe Winter WeatherMajor disaster
Jun 23, 1972Tropical Storm AgnesMajor disaster
Sep 14, 1965Hurricane BetsyMajor disaster

Florida also had 39 statewide declarations that did not name single counties.

Storm history since 1953

Tornado risk by county ›

The National Weather Service has logged 565 storm reports in Monroe County since 1953, with 1 death and 76 injuries and about $55.2 million in reported damage. The strongest on record here was an F2 tornado on November 4, 1998 near Key Largo.

78tornadoes
12hail reports, largest 1.75 inches
109damaging thunderstorm winds
26floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Nov 4, 1998F2Key Largo20 / 0
Aug 26, 2005F2Marathon0 / 0
Jun 18, 1972F2–40 / 0
Jun 18, 1972F2–0 / 0
Apr 27, 1980F2–10 / 0

Most damaging storms

DateTypeNearDamage
Nov 4, 1998TornadoKey Largo$25M
Feb 2, 1998TornadoMarathon$20M
Aug 26, 2005TornadoMarathon$5M
Jun 20, 1983Tornado–$3M
Jun 18, 1972Tornado–$250K
Jun 18, 1972Tornado–$250K

Source: NOAA Storm Events Database, county-based reports through Jun 5, 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 1861, 37 hurricanes and 31 tropical storms have passed within 65 miles of the center of Monroe County, 26 of them since 1950. The strongest was an unnamed hurricane in 1935, with top winds near 185 mph about 62 miles away.

37hurricanes
16major hurricanes (Category 3+)
31tropical storms
2020most recent: Eta

Strongest storms nearby

DateStormStrengthClosest
Sep 3, 1935UnnamedCategory 5, 185 mph62 mi
Aug 24, 1992AndrewCategory 5, 165 mph52 mi
Sep 10, 1960DonnaCategory 4, 145 mph63 mi
Sep 18, 1926UnnamedCategory 4, 145 mph61 mi
Oct 18, 1950KingCategory 4, 130 mph52 mi
Sep 21, 1948UnnamedCategory 4, 130 mph27 mi

Most recent storms

DateStormStrengthClosest
Nov 9, 2020EtaTropical storm, 65 mph58 mi
Sep 12, 2020SallyTropical storm, 40 mph15 mi
Sep 3, 2018GordonTropical storm, 60 mph57 mi
Sep 10, 2017IrmaCategory 3, 130 mph60 mi
Jul 23, 2010BonnieTropical storm, 40 mph60 mi
Aug 19, 2008FayTropical storm, 65 mph49 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 Monroe County

Check your address flood zone ›
58.2%of homes have federal flood insurance (22,181 policies)
61.3%of homes in mapped high-risk flood zones are insured
$714 millionpaid on 27,430 flood claims since 1978
2005costliest year, with $337 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 Monroe County

$780,600median home value (Florida $359,000, US $332,700)
1982median year homes were built (Florida 1988, US 1980)
46%of homes built before 1980, before many modern wind, quake and flood building rules
8.3%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; 54,834 housing units.

Compare in Florida

All 67 ›
Largest countiesOverall riskTop hazard
Miami-Dade CountyVery HighInland flooding
Broward CountyHighInland flooding
Palm Beach CountyHighHurricane
Hillsborough CountyHighHurricane
Orange CountyHighInland flooding
Duval CountyHighInland flooding
Pinellas CountyHighHurricane
Lee CountyHighHurricane

Neighboring counties

CountyOverall riskDeclarations
Miami-Dade CountyVery High39
Collier CountyHigh52

Cities in Monroe County

Common questions about Monroe County

What is the biggest natural hazard in Monroe County?

Hurricane has the highest expected yearly losses in Monroe County, about $65.1 million a year in FEMA's estimate. Coastal flooding is second at $21 million.

How many federal disasters has Monroe County had?

Monroe County has been included in 44 federal disaster or emergency declarations for natural events since 1965, including 26 major disasters. The most recent was Hurricane Milton in October 2024.

Is Monroe County a high-risk place to live?

Its overall rating is Relatively Moderate, 28th highest of 67 in Florida. 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 Monroe County?

Standard home insurance does not cover flooding. About 1 in 2 homes in Monroe 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 Monroe County had?

NOAA records list 78 tornadoes in Monroe County since 1950. The strongest was an F2 tornado on November 4, 1998 near Key Largo. The weather service has also logged 12 hail reports and 26 floods here.

How many hurricanes have hit Monroe County?

NOAA's hurricane records show 37 hurricanes and 31 tropical storms passing within 65 miles of the center of Monroe County, including 16 major hurricanes (Category 3 or stronger). The strongest was an unnamed hurricane in 1935, with winds near 185 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.