PlainHazard

If you are in immediate danger, call 911.

The data below is historical (NOAA Storm Events / FEMA), not a live alert. For current warnings and evacuation orders, check the National Weather Service, Ready.gov, or FEMA.gov.

Florida · FEMA + NOAA + National Risk Index

Union County, FL

34 FEMA disaster declarations (1993-2025), with a FEMA National Risk Index rating of Very Low. Most common hazard: Hurricane.

34
FEMA declarations
18
Major disasters
11
NRI risk · Very Low
Hurricane
Top hazard

The verdict

Union County has a nationally busy FEMA history: 34 declarations, more than 92% of counties in this registry. But the state comparison tempers that reading: the total is 16% below the Florida county mean. FEMA's separate National Risk Index places the county safer than 11%; that score models loss and vulnerability rather than counting declarations.

Safer than 11%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
34
FEMA declarations vs 21 national county avg
31
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.

View my watchlist

How does Union County compare?

Union County vs. all counties in this dataset

FEMA disaster declarations, all-time

34 Top 8% higher than 92% of 3,266 counties

This county 0 90 all U.S. counties FEMA tracks, bucketed by value

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 · 2026-08-03

Union County's FEMA Risk Index score

FEMA National Risk Index composite score vs. the Florida county average

0/100100/100Florida avg76/10010.9/100
FEMA National Risk Index composite score vs. the Florida county average

What does Union County's hazard record show?

Declaration frequency

Nationally, Union County's 34 FEMA records form a high-volume history; within Florida, however, the count is 16% below the county mean. 18 entries carry the Major Disaster classification. The largest incident group is Hurricane, appearing 16 times. The full 32-year record averages 1.1 declarations annually. A DR label alone does not say whether Individual Assistance, Public Assistance, or both followed.

FEMA National Risk Index

FEMA's National Risk Index places this county in the low end of the national distribution, composite score 10.9/100 (Very Low). Expected Annual Loss is rated Very Low (roughly $5.0M in annualized losses). Two modifiers shape how that exposure becomes real-world harm here: social vulnerability (Relatively Low) and community resilience (Relatively Low). Even the county's top-rated hazard, Hurricane, only reaches Relatively Low on FEMA's scale, none of the 18 modeled hazards stand out here. FEMA's modeled frequency puts that hazard at roughly once every 5 years here, based on 44 historical events on record.

Reading the federal records together

This county has a small entry in FEMA's NFIP paid-claims table: 31 claims and $499.8K paid in total. PlainHazard calls 1-49 claims a light registry record, a label for this dataset rather than a finding that flood exposure is low. A short claims history can also reflect insurance take-up, the period covered, or losses that were never insured.

Start with the state benchmark: a Florida county averages 40.4 federal declaration records, while Union County has 34. The gap is 16% 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.

64 /100

Historical Activity Index

High historical activity

Union 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
25/30

34 OpenFEMA declarations, full ingest window (1.6x national county average)

County Disaster Density Moderate
11/25

34 declarations (0.8x state county average of 40)

Major Disaster Share High
13/25

18 of 34 declarations are major disasters (53%)

Hazard Diversity Very High
15/20

6 different disaster types declared in Union County

Historical Declaration Activity

Activity Band

High

vs. Florida Avg

-16%

State avg: 40.4

vs. National Avg

+64%

National avg: 20.7

Avg Per Year

1.1

Over 32 years

FEMA NRI 8-hazard radar - Union County

Union County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 8, Flood 8, Hurricane 25, Tornado 25, Wildfire 25, Drought 8, Heat Wave 8, Winter Storm 8. The simple mean of these eight displayed scores is 14 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 14 8-hazard mean
Union County NRI risk profile FIPS 12125 · displayed-hazard mean 14/100
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.

FEMA Records

34

Very high volume

Major Disaster share

53%

Major-heavy

NRI risk score

11

Very Low

Source: FEMA National Risk Index Per-county per-hazard ratings, December 2025 release

How often does each hazard strike Union 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
Hurricane Relatively Low roughly once every 5 years
Wildfire Relatively Low roughly once every 276 years
Lightning Relatively Low an average of 82 times per year
Heat Wave Very Low 3.5 modeled event-days per year
Tornado Relatively Low roughly once every 8 years
Earthquake Very Low roughly once every 1,105 years
Drought Very Low 17 modeled event-days per year
Cold Wave Very Low an average of 1.8 times per year
Riverine Flooding Very Low roughly once every 4 years
Strong Wind Very Low an average of 1 time per year
Landslide Very Low roughly once every 34 years
Winter Weather Very Low roughly once every 10 years
Hail Very Low an average of 1.8 times per year

Source: FEMA National Risk Index Modeled annualized frequency; drought and heat wave use event-days/year, December 2025 release

Disaster Types

Hurricane 16
Severe Storm 6
Fire 5
Tropical Storm 4
Biological 2
Freezing 1

What Hurricane declarations mean here

Hurricane is the most frequent declaration type on Union County's federal record, 47% 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 - 18 52.9%

of all 34 declarations

Emergency - 13 38.2%

of all 34 declarations

Fire Management - 3 8.8%

of all 34 declarations

FEMA Declarations Timeline

Year Declarations
2025 2
2024 4
2023 3
2022 2
2021 1
2020 2
2019 2
2017 2
2016 1
2012 1
2008 2
2007 1
2005 1
2004 3
2001 1
Show 4 earlier declaration years
2000 1
1999 2
1998 2
1993 1

Disaster Declarations

How the 34 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 34 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
4828 HURRICANE HELENE DR Hurricane 2024-09-28
3615 TROPICAL STORM HELENE EM Tropical Storm 2024-09-24
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
4673 HURRICANE IAN DR Hurricane 2022-09-29
3584 TROPICAL STORM IAN EM Hurricane 2022-09-24
3561 TROPICAL STORM ELSA EM Severe Storm 2021-07-04
4486 COVID-19 PANDEMIC DR Biological 2020-03-25
3432 COVID-19 EM Biological 2020-03-13
3419 HURRICANE DORIAN EM Hurricane 2019-08-30
3405 HURRICANE MICHAEL EM Hurricane 2018-10-09
4337 HURRICANE IRMA DR Hurricane 2017-09-10
3385 HURRICANE IRMA EM Hurricane 2017-09-05
4280 HURRICANE HERMINE DR Hurricane 2016-09-28
4068 TROPICAL STORM DEBBY DR Severe Storm 2012-07-03
Show 14 earlier declaration records
DR# Title Type Incident Date
1785 TROPICAL STORM FAY DR Severe Storm 2008-08-24
3288 TROPICAL STORM FAY EM Severe Storm 2008-08-21
2689 SUWANNEE FIRE COMPLEX FM Fire 2007-05-07
3220 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-05
1561 HURRICANE JEANNE DR Hurricane 2004-09-26
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
2306 FL, SUWANNEE FIRE COMPLEX FM Fire 2000-06-05
3139 FL-FIRES 04/15/99 EM Fire 1999-04-27
2258 FL-FIRES 04/13/99 FM Fire 1999-04-20
1223 EXTREME FIRE HAZARD DR Fire 1998-06-18
1195 SEVERE STORMS, HIGH WINDS, TORNADOES, AND FLOODING DR Severe Storm 1998-01-06
966 SEVERE STORMS, TORNADOES & FLOODING DR Severe Storm 1992-10-08

Storm Events in Florida

Statewide NOAA context only. PlainHazard does not currently attribute these state totals to Union 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

31

Total Paid

$499.8K

Avg Per Claim

$16.1K

Source: FEMA National Flood Insurance Program (NFIP) OpenFEMA Claims Data

FEMA National Risk Index

Overall Risk

Very Low

Score: 10.9/100

Expected Annual Loss

Very Low

$5.0M/year

Social Vulnerability

Relatively Low

Community Resilience

Relatively Low

Hazard Risk Breakdown

Hurricane Relatively Low
Wildfire Relatively Low
Lightning Relatively Low
Heat Wave Very Low
Tornado Relatively Low
Earthquake Very Low
Drought Very Low
Cold Wave Very Low
Riverine Flooding Very Low
Strong Wind Very Low
Landslide Very Low
Winter Weather Very Low
Hail Very Low
Coastal Flooding 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: Hurricane

Hurricane exposure in the model bundles the three ways a tropical system does harm, which arrive on different timescales and are insured differently: wind, storm surge on the coast, and rainfall flooding that can reach far inland well after landfall.

For Union County the two measures on this page point the same way: Hurricane is the county's highest-rated modeled hazard (Relatively Low), and Hurricane declarations also lead its federal record. Where the model and the declaration history agree, the reading is comparatively straightforward, the hazard is both expected and repeatedly realised.

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

Union County's closest FEMA peer: Middlesex County, MA

Comparisons use published FEMA declaration fields plus the National Risk Index composite for Union County. Record similarity, not a safety rating.

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 Union County - capture-dated entries only.

Further reading for this county

Most disaster-prone counties

With 34 FEMA declarations, Union County sits in the high-volume declaration band - see how that count ranks against other U.S. counties.

More PlainHazard guides

Frequently Asked Questions

What is the most common disaster type in Union County?
The most common disaster type in Union County is Hurricane, with 16 declarations. Other disaster types include Severe Storm (6), Fire (5), Tropical Storm (4).
How does Union County's FEMA declaration record compare with the Florida average?
The typical Florida county has 40.4 FEMA declaration records; Union County has 34, or 16% fewer. Against the national county mean of 20.7, this county's total is 64% higher. The comparison is historical and says nothing about the probability of a future event.
How many major FEMA disaster declarations has Union County received?
Union County has received 18 major disaster declarations, representing 53% of all 34 disaster declarations.
How many flood insurance claims has Union County filed?
Union County has 31 National Flood Insurance Program (NFIP) claims totaling $499.8K in payments, with an average of $16.1K per claim.
What was the worst year for disasters in Union County?
The most active year for disaster declarations in Union County was 2024, with 4 declarations. The county has FEMA disaster data spanning 1993 to 2025.
What is the FEMA National Risk Index score for Union County?
According to the FEMA National Risk Index, Union County, Florida has an overall risk score of 10.9 out of 100 (Very Low). The county's social vulnerability rating is Relatively Low and community resilience is Relatively Low. The Expected Annual Loss (EAL) score is Very Low, representing $5.0M in annualized losses.
Which natural hazard poses the greatest risk to Union County?
FEMA's NRI data points to Union County as of the latest release is Hurricane (risk rating: Relatively Low). Other significant hazards include Wildfire (Relatively Low) and Lightning (Relatively Low). FEMA's modeled event frequency puts hurricane here at roughly once every 5 years, drawn from 44 historical events on record. These scores are based on FEMA's analysis of historical event frequency, exposed assets, and community vulnerability.
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.

What this means for Union County

Against a Florida county mean of 40 declarations, Union County, FL records 34, or 16% fewer. PlainHazard classifies that historical total as high activity.

  • Major Disaster is the largest group (18 of 34) in a declaration history that remains below its state benchmark; frequency here is not a forecast. Florida overview
  • Nationally the county exceeds 92% of recorded county totals, but its own Florida benchmark is higher. The ranking keeps those two contexts separate. Most-disaster rankings
  • A short NFIP claims file cannot establish low flood exposure; the data guide explains the limits of each federal measure. Disaster-data guide

A below-average federal record is not a safety guarantee. Use National Weather Service alerts and local emergency-management notices for present conditions, not this historical comparison.

All federal data sources used on this page
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainHazard Editorial

Verify with FEMA → · Verify with FEMA NRI → · Verify with NOAA →

Every figure on PlainHazard is rendered directly from FEMA federal disaster data, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or national statistics report, the data & editorial changelog, or report a data error.