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Georgia · FEMA + NOAA + National Risk Index

Gwinnett County, GA

14 FEMA disaster declarations (1977-2026), with a FEMA National Risk Index rating of Relatively High. Most common hazard: Hurricane.

14
FEMA declarations
6
Major disasters
95
NRI risk · Relatively High
Hurricane
Top hazard

The verdict

Gwinnett County has a nationally busy FEMA history: 14 declarations, more than 20% of counties in this registry. But the state comparison tempers that reading: the total is 19% below the Georgia county mean. FEMA's separate National Risk Index places the county in the riskiest 5%; that score models loss and vulnerability rather than counting declarations.

Riskiest 5%
of U.S. counties for FEMA National Risk Index score
Relatively High
FEMA National Risk Index rating
14
FEMA declarations vs 21 national county avg
487
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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FEMA OpenFEMA declaration desk

County FIPS 13135 · Gwinnett County 14 declarations · rank 2560/3,266

DECL-MID · MAJOR-LIGHT · RANK-LOWER · PHOTO-FINISH · NRI-HIGH · ACT-HIGH · TYPE-LEAD · VS-ST-BELOW

  • DECL-MID 14
  • MAJOR-LIGHT 43%
  • RANK-LOWER #2,560
  • PHOTO-FINISH Pulaski
  • NRI-HIGH 95
  • ACT-HIGH High
  • TYPE-LEAD Hurricane
  • VS-ST-BELOW -19%

Nearest declaration peer: Pulaski, IL (0 declaration gap)

FEMA Disaster Declarations Summaries v2 filing stamps for this county register. Read with this county → · Georgia state profile

Gwinnett County among counties with fewer federal records

FEMA declaration records among Gwinnett County and nearest peers by total count

declarations

What this shows Gwinnett County carries 14 FEMA declaration records, ranked 2560 of 3,266 counties in this registry.

Source FEMA OpenFEMA Disaster Declarations Summaries v2 As of 2026-08-25

Gwinnett County versus quieter counties in this dataset

Gwinnett County among lower-declaration counties nationally

FEMA disaster declarations, all-time · Gwinnett County

14 20th percentile higher than 20% 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 · 2026-08-25

Gwinnett County's FEMA Risk Index score

0/100100/100Georgia avg40/10095.4/100
FEMA National Risk Index composite score vs. the Georgia county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Gwinnett County is led by Riverine Flooding (about $144.9M Expected Annual Loss, Historical Loss Ratio Relatively High), while Lightning 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 Gwinnett County's hazard record show?

Reading the federal records together

The NFIP claims register shows a middle-volume loss record here: 487 paid claims, totaling $10.4M. PlainHazard uses 50-499 claims for this descriptive band; FEMA does not publish it as a safety or coverage category. The $21.4K average describes payments on recorded claims only, leaving uninsured damage and properties without a claim outside the measure.

Start with the state benchmark: a Georgia county averages 17.4 federal declaration records, while Gwinnett County has 14. The gap is 19% 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 95.4/100 (Relatively High). Expected Annual Loss is rated Relatively High (roughly $211.5M in annualized losses). Social vulnerability reads Relatively Low and community resilience Very Low, both critical modifiers of realized harm here. Of the 18 hazards FEMA models, Lightning stands out as the sharpest exposure here, rated Very High. FEMA's modeled frequency puts that hazard at an average of 60 times per year here, based on 415,149 historical events on record.

51 /100

Historical Activity Index

High historical activity

Gwinnett County, GA · 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) Moderate
10/30

14 OpenFEMA declarations, full ingest window (0.7x national county average)

County Disaster Density Moderate
10/25

14 declarations (0.8x state county average of 17)

Major Disaster Share Moderate
11/25

6 of 14 declarations are major disasters (43%)

Hazard Diversity Very High
20/20

8 different disaster types declared in Gwinnett County

FEMA NRI 8-hazard radar - Gwinnett County

Gwinnett County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 48, Flood 70, Hurricane 25, Tornado 70, Wildfire 8, Drought 25, Heat Wave 48, Winter Storm 70. The simple mean of these eight displayed scores is 46 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 46 8-hazard mean
Gwinnett County NRI risk profile FIPS 13135 · displayed-hazard mean 46/100
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

14

Low volume

Major Disaster share

43%

Mixed major share

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 Gwinnett 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
Lightning Very High an average of 60 times per year
Hail Relatively High an average of 5.3 times per year
Tornado Relatively High roughly once every 4 years
Riverine Flooding Relatively High an average of 1.2 times per year
Ice Storm Relatively High an average of 1.2 times per year
Cold Wave Relatively High roughly once every 1 years
Earthquake Relatively Moderate roughly once every 511 years
Heat Wave Relatively Moderate 2.3 modeled event-days per year
Strong Wind Relatively High an average of 2.5 times per year
Landslide Relatively Low roughly once every 3 years
Hurricane Relatively Low roughly once every 31 years
Winter Weather Relatively Moderate an average of 2.9 times per year
Drought Relatively Low 33 modeled event-days per year
Wildfire Very Low roughly once every 29,390 years

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

Disaster Types

Hurricane 4
Severe Storm 3
Biological 2
Winter Storm 1
Tropical Storm 1
Severe Ice Storm 1
Snowstorm 1
Drought 1

What Hurricane declarations mean here

Hurricane is the most frequent declaration type on Gwinnett County's federal record, 29% 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).

Emergency - 8 57.1%

of all 14 declarations

Major Disaster - 6 42.9%

of all 14 declarations

FEMA Declarations Timeline

Year Declarations
2026 1
2024 1
2020 2
2017 2
2014 1
2009 1
2005 1
2000 1
1998 1
1996 1
1993 1
1977 1

Disaster Declarations

How the 14 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 14 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
3642 SEVERE WINTER STORM EM Winter Storm 2026-01-24
3616 HURRICANE HELENE EM Tropical Storm 2024-09-26
4501 COVID-19 PANDEMIC DR Biological 2020-03-29
3464 COVID-19 EM Biological 2020-03-13
4338 HURRICANE IRMA DR Hurricane 2017-09-15
3387 HURRICANE IRMA EM Hurricane 2017-09-08
3368 SEVERE WINTER STORM EM Severe Ice Storm 2014-02-11
1858 SEVERE STORMS AND FLOODING DR Severe Storm 2009-09-24
3218 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-05
1311 SEVERE WINTER STORM DR Severe Storm 2000-01-28
1209 SEVERE STORMS AND FLOODING DR Severe Storm 1998-03-11
1071 HURRICANE OPAL DR Hurricane 1995-10-10
3097 SEVERE SNOWFALL, WINTER STORM EM Snowstorm 1993-03-15
3044 DROUGHT EM Drought 1977-07-20

Storm Events in Georgia

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

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 9,617 15 75 $65.4M
Drought 1,363 0 0 $0
Hail 1,257 0 0 $61.8M
Flash Flood 1,154 0 3 $29.3M
Tropical Storm 655 28 19 $855.3M

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

NFIP Flood Insurance Claims

Total Claims

487

Total Paid

$10.4M

Avg Per Claim

$21.4K

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

$211.5M/year

Social Vulnerability

Relatively Low

Community Resilience

Very Low

Hazard Risk Breakdown

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

Lightning is modeled as a high-frequency, low-per-event hazard: strike counts are large, but each strike affects a very small area. Its aggregate cost accumulates through structure fires, electrical and electronic damage, and it is one of the few hazards whose risk is essentially continuous through the season rather than episodic.

Worth noting for Gwinnett County: the model and the federal record do NOT point at the same hazard. Lightning 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

Gwinnett County's closest FEMA peer: El Paso County, TX

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

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Gwinnett 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.

Further reading for this county

Understanding disaster data

Gwinnett County's NFIP claims file (487 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 Gwinnett County?
The most common disaster type in Gwinnett County is Hurricane, with 4 declarations. Other disaster types include Severe Storm (3), Biological (2), Winter Storm (1).
How does Gwinnett County's FEMA declaration record compare with the Georgia average?
The typical Georgia county has 17.4 FEMA declaration records; Gwinnett County has 14, or 19% fewer. Against the national county mean of 20.7, this county's total is 32% lower. The comparison is historical and says nothing about the probability of a future event.
How many major FEMA disaster declarations has Gwinnett County received?
Gwinnett County has received 6 major disaster declarations, representing 43% of all 14 disaster declarations.
How many flood insurance claims has Gwinnett County filed?
Gwinnett County has 487 National Flood Insurance Program (NFIP) claims totaling $10.4M in payments, with an average of $21.4K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Gwinnett County?
No. In Gwinnett County, Lightning has the highest National Risk Index rating (Very High), while Riverine Flooding leads Expected Annual Loss at about $144.9M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Gwinnett County?
The most active year for disaster declarations in Gwinnett County was 2017, with 2 declarations. The county has FEMA disaster data spanning 1977 to 2026.
What is the FEMA National Risk Index score for Gwinnett County?
According to the FEMA National Risk Index, Gwinnett County, Georgia has an overall risk score of 95.4 out of 100 (Relatively High). On social vulnerability the county rates Relatively Low; on community resilience, Very Low. The Expected Annual Loss (EAL) score is Relatively High, representing $211.5M in annualized losses.
Which natural hazard poses the greatest risk to Gwinnett County?
The top hazard flagged by FEMA's NRI for Gwinnett County as of the latest release is Lightning (risk rating: Very High). Other significant hazards include Hail (Relatively High) and Tornado (Relatively High). FEMA's modeled event frequency puts lightning here at an average of 60 times per year, drawn from 415,149 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 Gwinnett County · vintage 2026-08-25 · Methodology · Georgia profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events