Monroe County, Florida
Natural disaster risk, federal disaster history and flood insurance facts.
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
- 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.
- 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.
- 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.
All 18 hazards
What the ratings mean ›| Hazard | Rating | Score | Expected loss a year | |
|---|---|---|---|---|
| Hurricane | 98.0 | $65M | ||
| Coastal flooding | 98.8 | $21M | ||
| Inland flooding | 42.9 | $5M | ||
| Lightning | 87.1 | $906K | ||
| Heat wave | 65.8 | $668K | ||
| Tornado | 25.6 | $338K | ||
| Strong wind | 32.4 | $284K | ||
| Wildfire | 61.9 | $85K | ||
| Hail | 16.8 | $52K | ||
| Cold wave | 4.1 | $6K | ||
| Earthquake | 6.4 | $5K | ||
| Landslide | 18.0 | $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
Most recent
Show all 44
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.
Strongest tornadoes
| Date | Strength | Near | Hurt / killed |
|---|---|---|---|
| Nov 4, 1998 | F2 | Key Largo | 20 / 0 |
| Aug 26, 2005 | F2 | Marathon | 0 / 0 |
| Jun 18, 1972 | F2 | – | 40 / 0 |
| Jun 18, 1972 | F2 | – | 0 / 0 |
| Apr 27, 1980 | F2 | – | 10 / 0 |
Most damaging storms
| Date | Type | Near | Damage |
|---|---|---|---|
| Nov 4, 1998 | Tornado | Key Largo | $25M |
| Feb 2, 1998 | Tornado | Marathon | $20M |
| Aug 26, 2005 | Tornado | Marathon | $5M |
| Jun 20, 1983 | Tornado | – | $3M |
| Jun 18, 1972 | Tornado | – | $250K |
| Jun 18, 1972 | Tornado | – | $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.
Strongest storms nearby
| Date | Storm | Strength | Closest |
|---|---|---|---|
| Sep 3, 1935 | Unnamed | Category 5, 185 mph | 62 mi |
| Aug 24, 1992 | Andrew | Category 5, 165 mph | 52 mi |
| Sep 10, 1960 | Donna | Category 4, 145 mph | 63 mi |
| Sep 18, 1926 | Unnamed | Category 4, 145 mph | 61 mi |
| Oct 18, 1950 | King | Category 4, 130 mph | 52 mi |
| Sep 21, 1948 | Unnamed | Category 4, 130 mph | 27 mi |
Most recent storms
| Date | Storm | Strength | Closest |
|---|---|---|---|
| Nov 9, 2020 | Eta | Tropical storm, 65 mph | 58 mi |
| Sep 12, 2020 | Sally | Tropical storm, 40 mph | 15 mi |
| Sep 3, 2018 | Gordon | Tropical storm, 60 mph | 57 mi |
| Sep 10, 2017 | Irma | Category 3, 130 mph | 60 mi |
| Jul 23, 2010 | Bonnie | Tropical storm, 40 mph | 60 mi |
| Aug 19, 2008 | Fay | Tropical storm, 65 mph | 49 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 ›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
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 counties | Overall risk | Top hazard |
|---|---|---|
| Miami-Dade County | Inland flooding | |
| Broward County | Inland flooding | |
| Palm Beach County | Hurricane | |
| Hillsborough County | Hurricane | |
| Orange County | Inland flooding | |
| Duval County | Inland flooding | |
| Pinellas County | Hurricane | |
| Lee County | Hurricane |
Neighboring counties
| County | Overall risk | Declarations |
|---|---|---|
| Miami-Dade County | 39 | |
| Collier County | 52 |
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.