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Texas · FEMA + NOAA + National Risk Index

Galveston County, TX

31 FEMA disaster declarations (1973-2024), with a FEMA National Risk Index rating of Relatively High. Most common hazard: Hurricane.

31
FEMA declarations
20
Major disasters
95
NRI risk · Relatively High
Hurricane
Top hazard

The verdict

Two federal records point in the busier direction for Galveston County. Its 31 FEMA declarations are 48% above the Texas county mean and exceed the count for 88% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it in the riskiest 5%, based on modeled expected annual loss, social vulnerability, and community resilience.

Riskiest 5%
of U.S. counties for FEMA National Risk Index score
Relatively High
FEMA National Risk Index rating
31
FEMA declarations vs 21 national county avg
60,618
NFIP flood insurance claims filed

FEMA's National Risk Index and its declaration registry are separate measures. This county's registry includes Major Disaster (DR) and Emergency (EM) records; an EM authorizes a narrower set of federal assistance than a DR.

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How does Galveston County compare?

Galveston County vs. all counties in this dataset

FEMA disaster declarations, all-time

31 Top 12% higher than 88% 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

Galveston County's FEMA Risk Index score

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

0/100100/100Texas avg49/10095.4/100
FEMA National Risk Index composite score vs. the Texas county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Galveston County is led by Riverine Flooding (about $63.0M Expected Annual Loss, Historical Loss Ratio Very Low), while Cold Wave carries the highest National Risk Index rating (Very 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 Galveston County's hazard record show?

Reading the federal records together

FEMA's NFIP table contains a substantial paid-claim history for this county: 60,618 claims and $2.5B 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 $40.7K. NFIP totals exclude uninsured flood losses and do not measure how many properties currently carry a policy.

The declaration register points in the busier direction. Galveston County's 31 federal records stand 48% above the Texas county mean of 20.9. That comparison describes how often federal action was recorded, including any Major Disaster, Emergency, and Fire Management entries shown on this page; it does not convert the count into future probability.

FEMA National Risk Index

This county sits among the highest-risk counties nationally on FEMA's National Risk Index, a composite score of 95.4/100 (Relatively High). Expected Annual Loss is rated Relatively High (roughly $198.0M in annualized losses). Social vulnerability reads Relatively Low and community resilience Very High, both critical modifiers of realized harm here. Of the 18 hazards FEMA models, Cold Wave stands out as the sharpest exposure here, rated Very High. FEMA's modeled frequency puts that hazard at roughly once every 2 years here, based on 5 historical events on record.

Declaration frequency

The FEMA register is busy by both local and national comparisons. It contains 31 entries for Galveston County, including 20 Major Disaster records, 48% above the Texas county mean. Across the 51-year span, that works out to 0.6 declarations a year. Hurricane leads the file with 14 entries. Declaration type records the federal action taken, not every assistance program approved.

75 /100

Historical Activity Index

Very High historical activity

Galveston County, TX · 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) High
22/30

31 OpenFEMA declarations, full ingest window (1.5x national county average)

County Disaster Density Very High
19/25

31 declarations (1.5x state county average of 21)

Major Disaster Share High
16/25

20 of 31 declarations are major disasters (65%)

Hazard Diversity Very High
18/20

7 different disaster types declared in Galveston County

Historical Declaration Activity

Activity Band

High

vs. Texas Avg

+48%

State avg: 20.9

vs. National Avg

+50%

National avg: 20.7

Avg Per Year

0.6

Over 51 years

FEMA NRI 8-hazard radar - Galveston County

Galveston County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 8, Flood 70, Hurricane 70, Tornado 70, Wildfire 25, Drought 70, Heat Wave 48, Winter Storm 92. The simple mean of these eight displayed scores is 57 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 57 8-hazard mean
Galveston County NRI risk profile FIPS 48167 · displayed-hazard mean 57/100
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

31

High volume

Major Disaster share

65%

Major-heavy

NRI risk score

95

Relatively High

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

How often does each hazard strike Galveston 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
Cold Wave Very High roughly once every 2 years
Lightning Very High an average of 70 times per year
Hurricane Relatively High roughly once every 4 years
Tornado Relatively High roughly once every 2 years
Drought Relatively High 21 modeled event-days per year
Riverine Flooding Relatively High an average of 2.9 times per year
Heat Wave Relatively Moderate 15 modeled event-days per year
Ice Storm Relatively High roughly once every 1 years
Coastal Flooding Relatively High an average of 3.8 times per year
Wildfire Relatively Low roughly once every 229 years
Hail Relatively Low an average of 1.7 times per year
Earthquake Very Low roughly once every 1,869 years
Strong Wind Relatively Moderate an average of 1.1 times per year
Landslide Very Low roughly once every 29 years
Winter Weather Very Low roughly once every 1 years

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

Disaster Types

Hurricane 14
Flood 5
Severe Storm 3
Fire 3
Severe Ice Storm 2
Biological 2
Coastal Storm 2

What Hurricane declarations mean here

Hurricane is the most frequent declaration type on Galveston County's federal record, 45% 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 - 20 64.5%

of all 31 declarations

Emergency - 11 35.5%

of all 31 declarations

FEMA Declarations Timeline

Year Declarations
2024 1
2021 3
2020 4
2017 1
2016 1
2008 4
2007 1
2006 1
2005 3
2003 1
2002 1
2001 1
1999 2
1998 2
1995 1
Show 3 earlier declaration years
1983 1
1979 2
1973 1

Disaster Declarations

How the 31 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 31 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4798 HURRICANE BERYL DR Hurricane 2024-07-09
4586 SEVERE WINTER STORMS DR Severe Ice Storm 2021-02-19
3554 SEVERE WINTER STORM EM Severe Ice Storm 2021-02-14
4572 HURRICANE LAURA DR Hurricane 2020-12-09
3540 TROPICAL STORMS MARCO AND LAURA EM Hurricane 2020-08-24
3530 HURRICANE HANNA EM Hurricane 2020-07-26
4485 COVID-19 PANDEMIC DR Biological 2020-03-25
3458 COVID-19 EM Biological 2020-03-13
4332 HURRICANE HARVEY DR Hurricane 2017-08-25
4245 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING DR Severe Storm 2015-11-25
1791 HURRICANE IKE DR Hurricane 2008-09-13
3294 HURRICANE IKE EM Hurricane 2008-09-10
3290 HURRICANE GUSTAV EM Hurricane 2008-08-29
3284 WILDFIRES EM Fire 2008-03-14
3277 HURRICANE DEAN EM Hurricane 2007-08-18
1624 EXTREME WILDFIRE THREAT DR Fire 2006-01-11
1606 HURRICANE RITA DR Hurricane 2005-09-24
3261 HURRICANE RITA EM Hurricane 2005-09-21
3216 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-02
1479 HURRICANE CLAUDETTE DR Hurricane 2003-07-17
Show 11 earlier declaration records
DR# Title Type Incident Date
1434 TROPICAL STORM FAY DR Coastal Storm 2002-09-26
1379 TX-TROPICAL STORM ALLISON-06-06-2001 DR Coastal Storm 2001-06-09
3142 EXTREME FIRE HAZARDS EM Fire 1999-09-01
1257 TX-FLOODING 10/18/98 DR Flood 1998-10-21
1245 HURRICANE GEORGES - TEXAS DR Severe Storm 1998-09-23
1239 TROPICAL STORM CHARLEY DR Severe Storm 1998-08-26
1041 SEVERE THUNDERSTORMS AND FLOODING DR Flood 1994-10-18
689 HURRICANE ALICIA DR Hurricane 1983-08-19
603 SEVERE STORMS & FLOODING DR Flood 1979-09-25
595 STORMS & FLASH FLOODS DR Flood 1979-07-28
398 SEVERE STORMS & FLOODING DR Flood 1973-07-11

Storm Events in Texas

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

Storm Type Events Fatalities Injuries Property Damage
Hail 14,072 0 15 $7.4B
Thunderstorm Wind 10,293 41 141 $369.9M
Drought 7,032 0 0 $86.0K
Flash Flood 4,728 338 24 $47.6B
Heat 4,079 119 405 $0

Source: NOAA Storm Events Database State-level aggregated data, 2015-2025

NFIP Flood Insurance Claims

Total Claims

60,618

Total Paid

$2.5B

Avg Per Claim

$40.7K

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

FEMA National Risk Index

Overall Risk

Relatively High

Score: 95.4/100

Expected Annual Loss

Relatively High

$198.0M/year

Social Vulnerability

Relatively Low

Community Resilience

Very High

Hazard Risk Breakdown

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

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: Cold Wave

Cold Wave measures exposure to extreme cold rather than to snow. Its harm is concentrated in health effects, burst infrastructure and energy demand spikes, and it falls hardest where the building stock and the grid were not built with sustained cold in mind.

Worth noting for Galveston County: the model and the federal record do NOT point at the same hazard. Cold Wave carries the highest modeled rating (Very 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

Galveston County's closest FEMA peer: Chenango County, NY

Comparisons use published FEMA declaration fields plus the National Risk Index composite for Galveston 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 Galveston County - capture-dated entries only.

Further reading for this county

Understanding disaster data

Galveston County's NFIP claims file (60,618 claims) and FEMA declaration history measure different federal records - this guide separates them from modeled NRI risk.

More PlainHazard guides

Frequently Asked Questions

What is the most common disaster type in Galveston County?
The most common disaster type in Galveston County is Hurricane, with 14 declarations. Other disaster types include Flood (5), Severe Storm (3), Fire (3).
How does Galveston County's FEMA declaration record compare with the Texas average?
FEMA lists 31 declaration records for Galveston County. That is 48% above the Texas county mean of 20.9. Its count is also 50% above the national county mean of 20.7. A larger declaration history records more federal actions; it is not a forecast of the county's next hazard.
How many major FEMA disaster declarations has Galveston County received?
Galveston County has received 20 major disaster declarations, representing 65% of all 31 disaster declarations.
How many flood insurance claims has Galveston County filed?
Galveston County has 60,618 National Flood Insurance Program (NFIP) claims totaling $2.5B in payments, with an average of $40.7K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Galveston County?
No. In Galveston County, Cold Wave has the highest National Risk Index rating (Very High), while Riverine Flooding leads Expected Annual Loss at about $63.0M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Galveston County?
The most active year for disaster declarations in Galveston County was 2008, with 4 declarations. The county has FEMA disaster data spanning 1973 to 2024.
What is the FEMA National Risk Index score for Galveston County?
According to the FEMA National Risk Index, Galveston County, Texas has an overall risk score of 95.4 out of 100 (Relatively High). The county's social vulnerability rating is Relatively Low and community resilience is Very High. The Expected Annual Loss (EAL) score is Relatively High, representing $198.0M in annualized losses.
Which natural hazard poses the greatest risk to Galveston County?
The top hazard flagged by FEMA's NRI for Galveston County as of the latest release is Cold Wave (risk rating: Very High). Other significant hazards include Lightning (Very High) and Hurricane (Relatively High). FEMA's modeled event frequency puts cold wave here at roughly once every 2 years, drawn from 5 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 Galveston County

Galveston County, TX has 31 federal declaration records, 48% more than the Texas county mean of 21; its history sits in PlainHazard's high activity band.

  • Within this above-state-average declaration file, major disaster leads with 20 of 31 records; the category describes past federal action, not the next likely hazard. Texas overview
  • The state benchmark and national rank point the same way: this count tops the Texas mean and the totals for 88% of 3,266 U.S. counties. Most-disaster rankings
  • The large NFIP claims file and FEMA declaration history measure different federal records; the guide explains where they overlap and where they do not. Disaster-data guide

An above-average declaration count records past federal responses; it does not predict the next event. Current warnings come from the National Weather Service and local emergency officials.

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.