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New Jersey · FEMA + NOAA + National Risk Index

Sussex County, NJ

28 FEMA disaster declarations (1965-2021), with a FEMA National Risk Index rating of Relatively Low. Most common hazard: Hurricane.

28
FEMA declarations
17
Major disasters
77
NRI risk · Relatively Low
Hurricane
Top hazard

The verdict

Sussex County has a nationally busy FEMA history: 28 declarations, more than 81% of counties in this registry. But the state comparison tempers that reading: the total is 6% below the New Jersey county mean. FEMA's separate National Risk Index places the county in the riskiest 23%; that score models loss and vulnerability rather than counting declarations.

Riskiest 23%
of U.S. counties for FEMA National Risk Index score
Relatively Low
FEMA National Risk Index rating
28
FEMA declarations vs 21 national county avg
192
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 34037 · Sussex County 28 declarations · rank 590/3,266

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

  • DECL-HEAVY 28
  • MAJOR-MID 61%
  • RANK-MID #590
  • PHOTO-FINISH Loíza
  • NRI-LOW 77
  • ACT-HIGH High
  • TYPE-LEAD Hurricane
  • VS-ST-BELOW -6%

Nearest declaration peer: Loíza, PR (0 declaration gap)

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

Sussex County among high-volume declaration counties

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

declarations

What this shows Sussex County carries 28 FEMA declaration records, ranked 590 of 3,266 counties in this registry.

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

Where Sussex County ranks in the national declaration registry

Sussex County vs. high-volume counties in this registry

FEMA disaster declarations, all-time · Sussex County

28 Top 19% higher than 81% 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

Sussex County's FEMA Risk Index score

0/100100/100New Jersey avg91/10077.4/100
FEMA National Risk Index composite score vs. the New Jersey county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Sussex County is led by Riverine Flooding (about $27.3M Expected Annual Loss, Historical Loss Ratio Relatively High), while Strong Wind 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 Sussex County's hazard record show?

Reading the federal records together

The NFIP claims register shows a middle-volume loss record here: 192 paid claims, totaling $2.0M. PlainHazard uses 50-499 claims for this descriptive band; FEMA does not publish it as a safety or coverage category. The $10.2K average describes payments on recorded claims only, leaving uninsured damage and properties without a claim outside the measure.

Start with the state benchmark: a New Jersey county averages 29.7 federal declaration records, while Sussex County has 28. The gap is 6% 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 77.4/100 (Relatively Low). Expected Annual Loss is rated Relatively Moderate (roughly $58.7M in annualized losses). Social vulnerability reads Very Low and community resilience Very High, both critical modifiers of realized harm here. Of the 18 hazards FEMA models, Strong Wind stands out as the sharpest exposure here, rated Very High. FEMA's modeled frequency puts that hazard at an average of 5.1 times per year here, based on 195 historical events on record.

67 /100

Historical Activity Index

High historical activity

Sussex County, NJ · 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
20/30

28 OpenFEMA declarations, full ingest window (1.4x national county average)

County Disaster Density Moderate
12/25

28 declarations (0.9x state county average of 30)

Major Disaster Share High
15/25

17 of 28 declarations are major disasters (61%)

Hazard Diversity Very High
20/20

8 different disaster types declared in Sussex County

FEMA NRI 8-hazard radar - Sussex County

Sussex County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 25, Flood 48, Hurricane 25, Tornado 25, Wildfire 8, Drought 25, Heat Wave 25, Winter Storm 70. The simple mean of these eight displayed scores is 31 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 31 8-hazard mean
Sussex County NRI risk profile FIPS 34037 · displayed-hazard mean 31/100
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

28

High volume

Major Disaster share

61%

Major-heavy

NRI risk score

77

Relatively Low

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

How often does each hazard strike Sussex 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
Strong Wind Very High an average of 5.1 times per year
Cold Wave Relatively High an average of 1.5 times per year
Landslide Relatively Low roughly once every 1 years
Winter Weather Relatively Moderate an average of 16 times per year
Riverine Flooding Relatively Moderate an average of 1.7 times per year
Hurricane Relatively Low roughly once every 16 years
Earthquake Relatively Low roughly once every 712 years
Lightning Relatively Moderate an average of 31 times per year
Heat Wave Relatively Low 4 modeled event-days per year
Ice Storm Relatively Low roughly once every 1 years
Drought Relatively Low 1.8 modeled event-days per year
Tornado Relatively Low roughly once every 5 years
Wildfire Very Low roughly once every 2,575 years
Avalanche Very Low roughly once every 100 years
Hail Very Low an average of 2.5 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 9
Severe Storm 7
Snowstorm 4
Biological 2
Drought 2
Flood 2
Fire 1
Other 1

What Hurricane declarations mean here

Hurricane is the most frequent declaration type on Sussex County's federal record, 32% 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 - 17 60.7%

of all 28 declarations

Emergency - 11 39.3%

of all 28 declarations

FEMA Declarations Timeline

Year Declarations
2021 4
2020 2
2013 2
2012 2
2011 2
2007 1
2006 1
2005 3
2003 1
2001 2
2000 1
1999 1
1996 1
1993 1
1981 1
Show 3 earlier declaration years
1975 1
1971 1
1965 1

Disaster Declarations

How the 28 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 28 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4614 REMNANTS OF HURRICANE IDA DR Hurricane 2021-09-05
3573 REMNANTS OF HURRICANE IDA EM Hurricane 2021-09-02
4597 SEVERE WINTER STORM AND SNOWSTORM DR Snowstorm 2021-04-28
4574 TROPICAL STORM ISAIAS DR Hurricane 2020-12-11
4488 COVID-19 PANDEMIC DR Biological 2020-03-25
3451 COVID-19 EM Biological 2020-03-13
4086 HURRICANE SANDY DR Hurricane 2012-10-30
3354 HURRICANE SANDY EM Hurricane 2012-10-28
4048 SEVERE STORM DR Severe Storm 2011-11-30
4039 REMNANTS OF TROPICAL STORM LEE DR Severe Storm 2011-10-14
4021 HURRICANE IRENE DR Hurricane 2011-08-31
3332 HURRICANE IRENE EM Hurricane 2011-08-27
1694 SEVERE STORMS AND INLAND AND COASTAL FLOODING DR Severe Storm 2007-04-26
1653 SEVERE STORMS AND FLOODING DR Severe Storm 2006-07-07
3257 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-19
1588 SEVERE STORMS AND FLOODING DR Severe Storm 2005-04-19
1563 SEVERE STORMS AND FLOODING DR Severe Storm 2004-10-01
3181 SNOW EM Snowstorm 2003-03-20
3169 FIRES AND EXPLOSIONS EM Fire 2001-09-19
3156 WEST NILE VIRUS EM Other 2000-11-01
Show 8 earlier declaration records
DR# Title Type Incident Date
1337 SEVERE STORMS, FLOODING AND MUDSLIDES DR Severe Storm 2000-08-17
3148 HURRICANE FLOYD EMERGENCY DECLARATIONS EM Hurricane 1999-09-17
1088 BLIZZARD OF 96 (SEVERE SNOW STORM) DR Snowstorm 1996-01-13
3106 SEVERE BLIZZARD EM Snowstorm 1993-03-17
3083 WATER SHORTAGE EM Drought 1980-10-19
477 HEAVY RAINS, HIGH WINDS, HAIL & TORNADOES DR Flood 1975-07-23
310 HEAVY RAINS & FLOODING DR Flood 1971-09-04
205 WATER SHORTAGE DR Drought 1965-08-18

Storm Events in New Jersey

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

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 2,853 6 27 $33.9M
Winter Weather 1,141 8 114 $0
Flash Flood 955 32 7 $226.8M
Coastal Flood 380 0 0 $2.0M
Winter Storm 361 11 8 $0

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

NFIP Flood Insurance Claims

Total Claims

192

Total Paid

$2.0M

Avg Per Claim

$10.2K

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

FEMA National Risk Index

Overall Risk

Relatively Low

Score: 77.4/100

Expected Annual Loss

Relatively Moderate

$58.7M/year

Social Vulnerability

Very Low

Community Resilience

Very High

Hazard Risk Breakdown

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

Strong Wind covers damaging non-thunderstorm, non-tornadic wind, the kind produced by steep pressure gradients and downslope events. It is a broad, frequent, low-drama hazard: roofs, signage, power lines and high-profile vehicles, spread across a wide area rather than concentrated on a path.

Worth noting for Sussex County: the model and the federal record do NOT point at the same hazard. Strong Wind 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

Sussex County's closest FEMA peer: Lewis County, NY

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

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Sussex 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

Sussex County's NFIP claims file (192 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 Sussex County?
The most common disaster type in Sussex County is Hurricane, with 9 declarations. Other disaster types include Severe Storm (7), Snowstorm (4), Biological (2).
How does Sussex County's FEMA declaration record compare with the New Jersey average?
The typical New Jersey county has 29.7 FEMA declaration records; Sussex County has 28, or 6% fewer. Against the national county mean of 20.7, this county's total is 35% higher. The comparison is historical and says nothing about the probability of a future event.
How many major FEMA disaster declarations has Sussex County received?
Sussex County has received 17 major disaster declarations, representing 61% of all 28 disaster declarations.
How many flood insurance claims has Sussex County filed?
Sussex County has 192 National Flood Insurance Program (NFIP) claims totaling $2.0M in payments, with an average of $10.2K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Sussex County?
No. In Sussex County, Strong Wind has the highest National Risk Index rating (Very High), while Riverine Flooding leads Expected Annual Loss at about $27.3M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Sussex County?
The most active year for disaster declarations in Sussex County was 2021, with 4 declarations. The county has FEMA disaster data spanning 1965 to 2021.
What is the FEMA National Risk Index score for Sussex County?
According to the FEMA National Risk Index, Sussex County, New Jersey has an overall risk score of 77.4 out of 100 (Relatively Low). Social vulnerability here rates Very Low, while community resilience comes in at Very High. The Expected Annual Loss (EAL) score is Relatively Moderate, representing $58.7M in annualized losses.
Which natural hazard poses the greatest risk to Sussex County?
FEMA's NRI data points to Sussex County is Strong Wind (risk rating: Very High). Other significant hazards include Cold Wave (Relatively High) and Landslide (Relatively Low). FEMA's modeled event frequency puts strong wind here at an average of 5.1 times per year, drawn from 195 historical events on record. The underlying methodology weighs historical event frequency against 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.

FEMA OpenFEMA declarations + NRI for Sussex County · vintage 2026-08-25 · Methodology · New Jersey profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events