FEMA Records
30
High volume
New Jersey · FEMA + NOAA + National Risk Index
Somerset County, NJ
30 FEMA disaster declarations (1965-2021), with a FEMA National Risk Index rating of Relatively Moderate. Most common hazard: Hurricane.
- 30
- FEMA declarations
- 19
- Major disasters
- 91
- NRI risk · Relatively Moderate
- Hurricane
- Top hazard
The verdict
Two federal records point in the busier direction for Somerset County. Its 30 FEMA declarations are 1% above the New Jersey county mean and exceed the count for 86% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it in the riskiest 9%, based on modeled expected annual loss, social vulnerability, and community resilience.
- Riskiest 9%
- of U.S. counties for FEMA National Risk Index score
- Relatively Moderate
- FEMA National Risk Index rating
- 30
- FEMA declarations vs 21 national county avg
- 6,501
- 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.
How does Somerset County compare?
Somerset County vs. all counties in this dataset
FEMA disaster declarations, all-time
30 Top 14% higher than 86% 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 · 2026-08-03
Somerset County's FEMA Risk Index score
FEMA National Risk Index composite score vs. the New Jersey county average
What does Somerset County's hazard record show?
Reading the federal records together
FEMA's NFIP table contains a substantial paid-claim history for this county: 6,501 claims and $239.8M 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 $36.9K. 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. Somerset County's 30 federal records stand 1% above the New Jersey county mean of 29.7. 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 90.9/100 (Relatively Moderate). Expected Annual Loss is rated Relatively Moderate (roughly $160.6M 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, Riverine Flooding stands out as the sharpest exposure here, rated Relatively High. FEMA's modeled frequency puts that hazard at an average of 6.3 times per year here, based on 176 historical events on record.
Declaration frequency
The FEMA register is busy by both local and national comparisons. It contains 30 entries for Somerset County, including 19 Major Disaster records, 1% above the New Jersey county mean. Across the 56-year span, that works out to 0.5 declarations a year. Hurricane leads the file with 9 entries. Declaration type records the federal action taken, not every assistance program approved.
71 /100
Historical Activity Index
High historical activity
Somerset 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
22/30
30 OpenFEMA declarations, full ingest window (1.4x national county average)
County Disaster Density High
13/25
30 declarations (1.0x state county average of 30)
Major Disaster Share High
16/25
19 of 30 declarations are major disasters (63%)
Hazard Diversity Very High
20/20
8 different disaster types declared in Somerset County
Historical Declaration Activity
Activity Band
High
vs. New Jersey Avg
+1%
State avg: 29.7
vs. National Avg
+45%
National avg: 20.7
Avg Per Year
0.5
Over 56 years
FEMA NRI 8-hazard radar - Somerset 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
63%
Major-heavy
NRI risk score
91
Relatively Moderate
Source: FEMA National Risk Index FEMA National Risk Index Per-county per-hazard ratings, December 2025 release
How often does each hazard strike Somerset 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 |
|---|---|---|
| Riverine Flooding | Relatively High | an average of 6.3 times per year |
| Winter Weather | Relatively High | an average of 12 times per year |
| Strong Wind | Relatively High | an average of 6.8 times per year |
| Ice Storm | Relatively High | roughly once every 1 years |
| Earthquake | Relatively Low | roughly once every 535 years |
| Heat Wave | Relatively Moderate | 7.4 modeled event-days per year |
| Hurricane | Relatively Moderate | roughly once every 9 years |
| Lightning | Relatively High | an average of 34 times per year |
| Cold Wave | Relatively Moderate | roughly once every 1 years |
| Tornado | Relatively Moderate | roughly once every 9 years |
| Drought | Relatively Low | 2.9 modeled event-days per year |
| Wildfire | Very Low | roughly once every 5,855 years |
| Coastal Flooding | Very Low | roughly once every 83 years |
| Landslide | Very Low | roughly once every 7 years |
| Hail | Very Low | an average of 2.4 times per year |
Source: FEMA National Risk Index FEMA National Risk Index Modeled annualized frequency; drought and heat wave use event-days/year, December 2025 release
Disaster Types
Hurricane 9
Severe Storm 6
Flood 5
Snowstorm 4
Biological 2
Drought 2
Fire 1
Other 1
What Hurricane declarations mean here
Hurricane is the most frequent declaration type on Somerset County's federal record, 30% 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 - 19 63.3%
of all 30 declarations
Emergency - 11 36.7%
of all 30 declarations
FEMA Declarations Timeline
| Year | Declarations | |
|---|---|---|
| 2021 | 2 | |
| 2020 | 2 | |
| 2018 | 1 | |
| 2016 | 1 | |
| 2013 | 2 | |
| 2012 | 1 | |
| 2011 | 3 | |
| 2010 | 1 | |
| 2007 | 1 | |
| 2005 | 1 | |
| 2003 | 1 | |
| 2001 | 2 | |
| 1999 | 2 | |
| 1997 | 1 | |
| 1996 | 1 | |
Show 7 earlier declaration years
| 1993 | 2 | |
| 1981 | 1 | |
| 1975 | 1 | |
| 1973 | 1 | |
| 1971 | 1 | |
| 1968 | 1 | |
| 1965 | 1 | |
Disaster Declarations
How the 30 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.
Download these 30 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 |
| 4488 | COVID-19 PANDEMIC | DR | Biological | 2020-03-25 |
| 3451 | COVID-19 | EM | Biological | 2020-03-13 |
| 4368 | SEVERE WINTER STORM AND SNOWSTORM | DR | Severe Storm | 2018-06-08 |
| 4264 | SEVERE WINTER STORM AND SNOWSTORM | DR | Severe Storm | 2016-03-14 |
| 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 |
| 4021 | HURRICANE IRENE | DR | Hurricane | 2011-08-31 |
| 3332 | HURRICANE IRENE | EM | Hurricane | 2011-08-27 |
| 1954 | SEVERE WINTER STORM AND SNOWSTORM | DR | Snowstorm | 2011-02-04 |
| 1897 | SEVERE STORMS AND FLOODING | DR | Severe Storm | 2010-04-02 |
| 1694 | SEVERE STORMS AND INLAND AND COASTAL FLOODING | DR | Severe Storm | 2007-04-26 |
| 3257 | HURRICANE KATRINA EVACUATION | EM | Hurricane | 2005-09-19 |
| 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 |
| 1295 | HURRICANE FLOYD MAJOR DISASTER DECLARATIONS | DR | Hurricane | 1999-09-18 |
| 3148 | HURRICANE FLOYD EMERGENCY DECLARATIONS | EM | Hurricane | 1999-09-17 |
Show 10 earlier declaration records
| DR# | Title | Type | Incident | Date |
|---|---|---|---|---|
| 1145 | SEVERE STORMS AND FLOODING | DR | Severe Storm | 1996-11-19 |
| 1088 | BLIZZARD OF 96 (SEVERE SNOW STORM) | DR | Snowstorm | 1996-01-13 |
| 3106 | SEVERE BLIZZARD | EM | Snowstorm | 1993-03-17 |
| 973 | COASTAL STORM, HIGH TIDES, HEAVY RAIN, & FLOODING | DR | Flood | 1992-12-18 |
| 3083 | WATER SHORTAGE | EM | Drought | 1980-10-19 |
| 477 | HEAVY RAINS, HIGH WINDS, HAIL & TORNADOES | DR | Flood | 1975-07-23 |
| 402 | SEVERE STORMS & FLOODING | DR | Flood | 1973-08-07 |
| 310 | HEAVY RAINS & FLOODING | DR | Flood | 1971-09-04 |
| 245 | HEAVY RAINS & FLOODING | DR | Flood | 1968-06-18 |
| 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 Somerset 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 NOAA Storm Events Database State-level aggregated data, 2015-2025
NFIP Flood Insurance Claims
Total Claims
6,501
Total Paid
$239.8M
Avg Per Claim
$36.9K
Source: FEMA National Flood Insurance Program (NFIP) OpenFEMA Claims Data FEMA National Flood Insurance Program (NFIP) OpenFEMA Claims Data
FEMA National Risk Index
Overall Risk
Relatively Moderate
Score: 90.9/100
Expected Annual Loss
Relatively Moderate
$160.6M/year
Social Vulnerability
Very Low
Community Resilience
Very High
Hazard Risk Breakdown
Riverine Flooding Relatively High
Winter Weather Relatively High
Strong Wind Relatively High
Ice Storm Relatively High
Earthquake Relatively Low
Heat Wave Relatively Moderate
Hurricane Relatively Moderate
Lightning Relatively High
Cold Wave Relatively Moderate
Tornado Relatively Moderate
Drought Relatively Low
Wildfire Very Low
Coastal Flooding Very Low
Landslide Very Low
Hail Very Low
Source: FEMA National Risk Index (NRI) FEMA National Risk Index (NRI) Ratings reflect relative scores among all US counties. Data: hazards.fema.gov/nri
The model's sharpest exposure here: Riverine Flooding
Riverine Flooding is the model's measure of a watershed draining more water than its channel can carry. Unlike flash flooding it usually builds over days and is forecast in advance, which makes it the hazard where warning time most reliably converts into reduced harm.
Worth noting for Somerset County: the model and the federal record do NOT point at the same hazard. Riverine Flooding 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
Somerset County's closest FEMA peer: St. Clair County, AL
Comparisons use published FEMA declaration fields plus the National Risk Index composite for Somerset County. Record similarity, not a safety rating.
Closest declaration profiles
Somerset County shows 30 FEMA declarations, led by Hurricane.
Similar Major-disaster share
Somerset County: 19 of 30 of its declarations are Major.
Similar modeled NRI score
Somerset County: NRI composite 90.9 (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 Somerset County - capture-dated entries only.
Further reading for this county
Understanding disaster data
Somerset County's NFIP claims file (6,501 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).
Related
Frequently Asked Questions
What is the most common disaster type in Somerset County?
The most common disaster type in Somerset County is Hurricane, with 9 declarations. Other disaster types include Severe Storm (6), Flood (5), Snowstorm (4).
How does Somerset County's FEMA declaration record compare with the New Jersey average?
FEMA lists 30 declaration records for Somerset County. That is 1% above the New Jersey county mean of 29.7. Its count is also 45% 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 Somerset County received?
Somerset County has received 19 major disaster declarations, representing 63% of all 30 disaster declarations.
How many flood insurance claims has Somerset County filed?
Somerset County has 6,501 National Flood Insurance Program (NFIP) claims totaling $239.8M in payments, with an average of $36.9K per claim.
What was the worst year for disasters in Somerset County?
The most active year for disaster declarations in Somerset County was 2011, with 3 declarations. The county has FEMA disaster data spanning 1965 to 2021.
What is the FEMA National Risk Index score for Somerset County?
According to the FEMA National Risk Index, Somerset County, New Jersey has an overall risk score of 90.9 out of 100 (Relatively Moderate). Social vulnerability here rates Very Low, while community resilience comes in at Very High. The Expected Annual Loss (EAL) score is Relatively Moderate, representing $160.6M in annualized losses.
Which natural hazard poses the greatest risk to Somerset County?
The top hazard flagged by FEMA's NRI for Somerset County as of the latest release is Riverine Flooding (risk rating: Relatively High). Other significant hazards include Winter Weather (Relatively High) and Strong Wind (Relatively High). FEMA's modeled event frequency puts riverine flooding here at an average of 6.3 times per year, drawn from 176 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 Somerset County
Somerset County, NJ has 30 federal declaration records, 1% more than the New Jersey county mean of 30; its history sits in PlainHazard's high activity band.
- Within this above-state-average declaration file, major disaster leads with 19 of 30 records; the category describes past federal action, not the next likely hazard. New Jersey overview
- The state benchmark and national rank point the same way: this count tops the New Jersey mean and the totals for 86% 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.
PlainHazard derives this profile from FEMA's Disaster Declarations Summaries and National Risk Index data. The declaration comparison covers 3,266 U.S. counties and county equivalents in this database, refreshed as of 2026-08-03. Read our methodology - how this data is sourced, computed, and verified.
All federal data sources used on this page
- FEMA OpenFEMA, Disaster Declarations Summaries v2 - all federally-declared disasters for this county. fema.gov/openfema/disaster-declarations
- FEMA National Risk Index (NRI) - per-county per-hazard risk ratings and expected annual loss. hazards.fema.gov/nri
- NOAA NCEI Storm Events Database - state-level storm/severe-weather event records, 2015-2025. ncdc.noaa.gov/stormevents
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.