FEMA Records
39
Very high volume
Florida · FEMA + NOAA + National Risk Index
Seminole County, FL
39 FEMA disaster declarations (1977-2025), with a FEMA National Risk Index rating of Relatively Moderate. Most common hazard: Hurricane.
- 39
- FEMA declarations
- 23
- Major disasters
- 91
- NRI risk · Relatively Moderate
- Hurricane
- Top hazard
The verdict
Seminole County has a nationally busy FEMA history: 39 declarations, more than 96% of counties in this registry. But the state comparison tempers that reading: the total is 3% below the Florida county mean. FEMA's separate National Risk Index places the county in the riskiest 9%; that score models loss and vulnerability rather than counting declarations.
- Riskiest 9%
- of U.S. counties for FEMA National Risk Index score
- Relatively Moderate
- FEMA National Risk Index rating
- 39
- FEMA declarations vs 21 national county avg
- 1,561
- NFIP flood insurance claims filed
FEMA's National Risk Index and its declaration registry are separate measures. This county's registry includes Fire Management Assistance (FM) records, which are not presidential disaster declarations, alongside Major Disaster (DR) and Emergency (EM) records.
FEMA OpenFEMA declaration desk
County FIPS 12117 · Seminole County 39 declarations · rank 127/3,266
DECL-HEAVY · MAJOR-MID · RANK-UPPER · PHOTO-FINISH · NRI-MID · ACT-HIGH · TYPE-LEAD · VS-ST-BELOW
- DECL-HEAVY 39
- MAJOR-MID 59%
- RANK-UPPER #127
- PHOTO-FINISH Canadian
- NRI-MID 91
- ACT-HIGH High
- TYPE-LEAD Hurricane
- VS-ST-BELOW -3%
Nearest declaration peer: Canadian, OK (0 declaration gap)
FEMA Disaster Declarations Summaries v2 filing stamps for this county register. Read with this county → · Florida state profile
Seminole County among high-volume declaration counties
FEMA declaration records among Seminole County and nearest peers by total count
- Los Angeles · largest
Los Angeles · largest
88 declarations
- Canadian · near
Canadian · near
39 declarations
- Delaware · near
Delaware · near
39 declarations
- Orange · near
Orange · near
39 declarations
- Seminole · this county
Seminole · this county
39 declarations
- Ujelang · smallest 1
Ujelang · smallest
1 declarations
What this shows Seminole County carries 39 FEMA declaration records, ranked 127 of 3,266 counties in this registry.
Where Seminole County ranks in the national declaration registry
Seminole County vs. high-volume counties in this registry
FEMA disaster declarations, all-time · Seminole County
39 Top 4% higher than 96% of 3,266 counties
Each bar is a band; taller bars hold more counties. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source FEMA Disaster Declarations Summaries v2 · 2026-08-25
Seminole County's FEMA Risk Index score
Which hazard drives modeled loss here?
FEMA's modeled annual dollar loss for Seminole County is led by Riverine Flooding (about $66.2M Expected Annual Loss, Historical Loss Ratio Relatively Low), while Tornado carries the highest National Risk Index rating (Relatively High). EAL and risk score use different inputs; they need not agree.
Source: FEMA National Risk Index (December 2025 release) - Expected Annual Loss vs composite risk rating by hazard.
What does Seminole County's hazard record show?
Reading the federal records together
FEMA's NFIP table contains a substantial paid-claim history for this county: 1,561 claims and $54.3M in payments. PlainHazard labels 500 or more claims a heavy registry record; that is a reporting bucket, not an official FEMA risk grade. The average paid claim was $34.8K. NFIP totals exclude uninsured flood losses and do not measure how many properties currently carry a policy.
Start with the state benchmark: a Florida county averages 40.4 federal declaration records, while Seminole County has 39. The gap is 3% below that mean. Fewer entries indicate a quieter history of recorded federal actions, not immunity from a hazard and not a prediction about what happens next.
FEMA National Risk Index
This county sits among the highest-risk counties nationally on FEMA's National Risk Index, a composite score of 91.4/100 (Relatively Moderate). Expected Annual Loss is rated Relatively Moderate (roughly $129.2M in annualized losses). Social vulnerability reads Very Low and community resilience Relatively Moderate, both critical modifiers of realized harm here. Of the 18 hazards FEMA models, Tornado stands out as the sharpest exposure here, rated Relatively High. FEMA's modeled frequency puts that hazard at roughly once every 4 years here, based on 16 historical events on record.
70 /100
Historical Activity Index
High historical activity
Seminole County, FL · PlainHazard-derived composite from federal records
This 0–100 index is an explicit PlainHazard composite from FEMA declaration history only on the county surface (this DB has no county-level NOAA damage row) . It is not FEMA's National Risk Index, not a forecast, and not a safety, insurance, or preparedness rating. Open the calculator · Methodology
FEMA Declarations (1953–present) Very High
28/30
39 OpenFEMA declarations, full ingest window (1.9x national county average)
County Disaster Density Moderate
12/25
39 declarations (1.0x state county average of 40)
Major Disaster Share High
15/25
23 of 39 declarations are major disasters (59%)
Hazard Diversity Very High
15/20
6 different disaster types declared in Seminole County
FEMA NRI 8-hazard radar - Seminole County
How to read this radar
Each axis: NRI risk rating (Very Low-Very High) on a 0-100 scale. Rounder = broad exposure; spiky = one or two hazards dominate.
Major Disaster share
59%
Major-heavy
NRI risk score
91
Relatively Moderate
Source: FEMA National Risk Index Per-county per-hazard ratings, December 2025 release
How often does each hazard strike Seminole County?
FEMA's National Risk Index models a historical event count and an annualized frequency for each hazard type. Most hazards are expressed as modeled occurrences per year; FEMA expresses drought and heat-wave frequency as event-days per year. These modeled frequencies are not forecasts.
| Hazard | NRI Risk Rating | Recurrence |
|---|---|---|
| Tornado | Relatively High | roughly once every 4 years |
| Strong Wind | Relatively High | an average of 1.1 times per year |
| Lightning | Relatively High | an average of 87 times per year |
| Hurricane | Relatively High | roughly once every 4 years |
| Riverine Flooding | Relatively Moderate | roughly once every 2 years |
| Wildfire | Relatively Moderate | roughly once every 124 years |
| Heat Wave | Relatively Low | 1.9 modeled event-days per year |
| Earthquake | Relatively Low | roughly once every 2,364 years |
| Cold Wave | Relatively Low | an average of 3.9 times per year |
| Hail | Very Low | an average of 2.1 times per year |
| Landslide | Very Low | roughly once every 29 years |
| Drought | Very Low | 14 modeled event-days per year |
| Coastal Flooding | No Rating | roughly once every 100 years |
Source: FEMA National Risk Index Modeled annualized frequency; drought and heat wave use event-days/year, December 2025 release
Disaster Types
Hurricane 20
Freezing 5
Tropical Storm 4
Severe Storm 4
Fire 4
Biological 2
What Hurricane declarations mean here
Hurricane is the most frequent declaration type on Seminole County's federal record, 51% of its declarations. Atlantic tropical systems run on a defined season, 1 June to 30 November, with most activity concentrated between August and October; Pacific and territorial basins run on their own calendars. A single named storm routinely produces one declaration number covering a long corridor of counties at once, well inland as well as on the coast, which is why an affected county's count can jump by several in one year without several separate events having occurred.
One practical distinction matters when reading these records: a tropical declaration usually bundles wind, storm surge and inland rainfall flooding under a single incident, but the insurance behind them is split. Wind damage falls to property insurers, while flood and surge damage is covered only under a separate National Flood Insurance Program policy. That is why a county can show heavy declaration activity and a comparatively small NFIP claims record, or the reverse.
Declaration counts describe past federal action. They are a record of what was declared, not a forecast of future hazard probability.
Declaration Types
What DR / EM / FM mean
FEMA categorizes declarations as Major Disasters (DR), Emergencies (EM), or Fire Management Assistance (FM).
Major Disaster - 23 59.0%
of all 39 declarations
Emergency - 14 35.9%
of all 39 declarations
Fire Management - 2 5.1%
of all 39 declarations
FEMA Declarations Timeline
| Year | Declarations | |
|---|---|---|
| 2025 | 2 | |
| 2024 | 2 | |
| 2023 | 4 | |
| 2022 | 2 | |
| 2020 | 4 | |
| 2019 | 1 | |
| 2017 | 4 | |
| 2008 | 2 | |
| 2007 | 2 | |
| 2005 | 1 | |
| 2004 | 4 | |
| 2001 | 1 | |
| 2000 | 2 | |
| 1999 | 2 | |
| 1998 | 2 | |
Show 4 earlier declaration years
| 1990 | 1 | |
| 1985 | 1 | |
| 1984 | 1 | |
| 1977 | 1 | |
Disaster Declarations
How the 39 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.
Download these 39 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.
| DR# | Title | Type | Incident | Date |
|---|---|---|---|---|
| 4834 | HURRICANE MILTON | DR | Hurricane | 2024-10-11 |
| 3622 | HURRICANE MILTON | EM | Hurricane | 2024-10-07 |
| 4806 | HURRICANE DEBBY | DR | Tropical Storm | 2024-08-10 |
| 3605 | TROPICAL STORM DEBBY | EM | Tropical Storm | 2024-08-03 |
| 4734 | HURRICANE IDALIA | DR | Hurricane | 2023-08-31 |
| 3596 | TROPICAL STORM IDALIA | EM | Tropical Storm | 2023-08-28 |
| 4680 | HURRICANE NICOLE | DR | Hurricane | 2022-12-13 |
| 3587 | TROPICAL STORM NICOLE | EM | Tropical Storm | 2022-11-08 |
| 4673 | HURRICANE IAN | DR | Hurricane | 2022-09-29 |
| 3584 | TROPICAL STORM IAN | EM | Hurricane | 2022-09-24 |
| 3533 | HURRICANE ISAIAS | EM | Hurricane | 2020-08-01 |
| 4486 | COVID-19 PANDEMIC | DR | Biological | 2020-03-25 |
| 3432 | COVID-19 | EM | Biological | 2020-03-13 |
| 4468 | HURRICANE DORIAN | DR | Hurricane | 2019-10-21 |
| 3419 | HURRICANE DORIAN | EM | Hurricane | 2019-08-30 |
| 4337 | HURRICANE IRMA | DR | Hurricane | 2017-09-10 |
| 3385 | HURRICANE IRMA | EM | Hurricane | 2017-09-05 |
| 4283 | HURRICANE MATTHEW | DR | Hurricane | 2016-10-08 |
| 3377 | HURRICANE MATTHEW | EM | Hurricane | 2016-10-06 |
| 1785 | TROPICAL STORM FAY | DR | Severe Storm | 2008-08-24 |
Show 19 earlier declaration records
| DR# | Title | Type | Incident | Date |
|---|---|---|---|---|
| 3288 | TROPICAL STORM FAY | EM | Severe Storm | 2008-08-21 |
| 2687 | DELAND FIRE COMPLEX | FM | Fire | 2007-05-02 |
| 1679 | SEVERE STORMS AND TORNADOES | DR | Severe Storm | 2007-02-03 |
| 3220 | HURRICANE KATRINA EVACUATION | EM | Hurricane | 2005-09-05 |
| 1561 | HURRICANE JEANNE | DR | Hurricane | 2004-09-26 |
| 1551 | HURRICANE IVAN | DR | Hurricane | 2004-09-16 |
| 1545 | HURRICANE FRANCES | DR | Hurricane | 2004-09-04 |
| 1539 | TROPICAL STORM BONNIE AND HURRICANE CHARLEY | DR | Hurricane | 2004-08-13 |
| 1359 | SEVERE FREEZE | DR | Freezing | 2001-02-05 |
| 1306 | FL-HURRICANE IRENE-DR-REQ | DR | Hurricane | 1999-10-20 |
| 3150 | TROPICAL STORM IRENE - FLORIDA | EM | Hurricane | 1999-10-15 |
| 3139 | FL-FIRES 04/15/99 | EM | Fire | 1999-04-27 |
| 2253 | FL-FIRES 04/13/99 | FM | Fire | 1999-04-15 |
| 1223 | EXTREME FIRE HAZARD | DR | Fire | 1998-06-18 |
| 1195 | SEVERE STORMS, HIGH WINDS, TORNADOES, AND FLOODING | DR | Severe Storm | 1998-01-06 |
| 851 | SEVERE FREEZE | DR | Freezing | 1990-01-15 |
| 732 | SEVERE FREEZE | DR | Freezing | 1985-03-18 |
| 698 | FREEZING TEMPERATURES | DR | Freezing | 1984-03-29 |
| 526 | SEVERE WINTER WEATHER | DR | Freezing | 1977-01-31 |
Storm Events in Florida
Statewide NOAA context only. PlainHazard does not currently attribute these state totals to Seminole County.
| Storm Type | Events | Fatalities | Injuries | Property Damage |
|---|---|---|---|---|
| Thunderstorm Wind | 5,243 | 17 | 45 | $24.8M |
| Hail | 1,012 | 0 | 0 | $564.6K |
| Heavy Rain | 865 | 2 | 3 | $200.0K |
| Flood | 826 | 9 | 0 | $2.0B |
| Tropical Storm | 767 | 92 | 6 | $4.9B |
Source: NOAA Storm Events Database State-level aggregated data, 2015-2025
NFIP Flood Insurance Claims
Total Claims
1,561
Total Paid
$54.3M
Avg Per Claim
$34.8K
Source: FEMA National Flood Insurance Program (NFIP) OpenFEMA Claims Data
FEMA National Risk Index
Overall Risk
Relatively Moderate
Score: 91.4/100
Expected Annual Loss
Relatively Moderate
$129.2M/year
Social Vulnerability
Very Low
Community Resilience
Relatively Moderate
Hazard Risk Breakdown
Tornado Relatively High
Strong Wind Relatively High
Lightning Relatively High
Hurricane Relatively High
Riverine Flooding Relatively Moderate
Wildfire Relatively Moderate
Heat Wave Relatively Low
Earthquake Relatively Low
Cold Wave Relatively Low
Hail Very Low
Landslide Very Low
Drought Very Low
Coastal Flooding No Rating
Winter Weather No Rating
Source: FEMA National Risk Index (NRI) Ratings reflect relative scores among all US counties. Data: hazards.fema.gov/nri
The model's sharpest exposure here: Tornado
Tornado exposure is the most spatially concentrated in the model: total destruction along a narrow corridor with intact property either side. County-level averages therefore understate severity badly for anyone actually in the path, and overstate it for everyone else.
Worth noting for Seminole County: the model and the federal record do NOT point at the same hazard. Tornado carries the highest modeled rating (Relatively High), while the county's declaration history is led by Hurricane. That is not a contradiction, the two measure genuinely different things. Declarations record federal ACTION, which requires damage costly enough to exceed state and local capacity; the Risk Index models EXPECTED annual loss across all 18 hazards whether or not any declaration ever followed. A hazard can be the county's largest modeled exposure and never once have driven a declaration.
National Risk Index ratings are modeled estimates of expected annual loss, not predictions of what will happen in any given year.
Data-matched county comparisons
Seminole County's closest FEMA peer: Napa County, CA
Comparisons use published FEMA declaration fields plus the National Risk Index composite for Seminole County. Record similarity, not a safety rating.
Closest declaration profiles
Seminole County shows 39 FEMA declarations, led by Hurricane.
Similar Major-disaster share
Seminole County: 23 of 39 of its declarations are Major.
Similar modeled NRI score
Seminole County: NRI composite 91.4 (Relatively Moderate).
How these peers are chosen
Cohort: Published U.S. county equivalents outside the source state or territory. Each metric keeps six ETL candidates; three unique destinations are shown after de-duplicating across axes. Declaration-volume ranking combines count and Major-disaster share and prefers a different leading incident type; Major-share ranks the Major fraction adjusted for volume; NRI ranks the modeled composite score only.
Retained FEMA snapshot feed for Seminole County - capture-dated entries only.
Compare beyond this state
Nationwide peers by NRI score & FEMA declaration volume
Two PlainHazard-derived comparison paths for Seminole County: nearest out-of-state National Risk Index composite and nearest FEMA declaration count (floor ≥5 records). Record similarity only, not a forecast of the next hazard.
Similar NRI composite
Nearest out-of-state counties by FEMA NRI score. This county: 91.4 (Relatively Moderate).
Similar declaration volume
Nearest out-of-state counties by FEMA declaration count. This county: 39. NRI peers are excluded so the two link sets stay distinct.
Further reading for this county
Understanding disaster data
Seminole County's NFIP claims file (1,561 claims) and FEMA declaration history measure different federal records - this guide separates them from modeled NRI risk.
More PlainHazard guides
- Most disaster-prone counties - U.S. counties ranked by FEMA declaration totals.
- Understanding disaster data - declarations vs storm events vs NRI scores.
- Preparing for natural disasters - household checklist (not county-specific advice).
Frequently Asked Questions
What is the most common disaster type in Seminole County?
The most common disaster type in Seminole County is Hurricane, with 20 declarations. Other disaster types include Freezing (5), Tropical Storm (4), Severe Storm (4).
How does Seminole County's FEMA declaration record compare with the Florida average?
The typical Florida county has 40.4 FEMA declaration records; Seminole County has 39, or 3% fewer. Against the national county mean of 20.7, this county's total is 88% higher. The comparison is historical and says nothing about the probability of a future event.
How many major FEMA disaster declarations has Seminole County received?
Seminole County has received 23 major disaster declarations, representing 59% of all 39 disaster declarations.
How many flood insurance claims has Seminole County filed?
Seminole County has 1,561 National Flood Insurance Program (NFIP) claims totaling $54.3M in payments, with an average of $34.8K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Seminole County?
No. In Seminole County, Tornado has the highest National Risk Index rating (Relatively High), while Riverine Flooding leads Expected Annual Loss at about $66.2M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Seminole County?
The most active year for disaster declarations in Seminole County was 2004, with 4 declarations. The county has FEMA disaster data spanning 1977 to 2025.
What is the FEMA National Risk Index score for Seminole County?
According to the FEMA National Risk Index, Seminole County, Florida has an overall risk score of 91.4 out of 100 (Relatively Moderate). The county's social vulnerability rating is Very Low and community resilience is Relatively Moderate. The Expected Annual Loss (EAL) score is Relatively Moderate, representing $129.2M in annualized losses.
Which natural hazard poses the greatest risk to Seminole County?
Based on FEMA NRI data, the highest-risk natural hazard in Seminole County as of the latest release is Tornado (risk rating: Relatively High). Other significant hazards include Strong Wind (Relatively High) and Lightning (Relatively High). FEMA's modeled event frequency puts tornado here at roughly once every 4 years, drawn from 16 historical events on record. FEMA derives these ratings from historical event frequency, the assets exposed, and the community's vulnerability profile.
Data Sources & Methodology
Disaster declaration data comes from the FEMA OpenFEMA Disaster Declarations Summaries v2 API, which includes all federally declared disasters, emergencies, and fire management assistance grants.
Storm event data is sourced from the NOAA Storm Events Database (2015-2025), which tracks significant weather events including thunderstorms, tornadoes, floods, and winter storms.
Flood insurance data comes from the FEMA National Flood Insurance Program (NFIP) OpenFEMA claims dataset.
This data is provided for informational purposes only. FEMA disaster declarations represent federal response actions and may not capture all local emergencies or weather events.
FEMA OpenFEMA declarations + NRI for Seminole County · vintage 2026-08-25 · Methodology · Florida profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events