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Massachusetts · FEMA + NOAA + National Risk Index

Hampden County, MA

24 FEMA disaster declarations (1986-2023), with a FEMA National Risk Index rating of Relatively Moderate. Most common hazard: Hurricane.

24
FEMA declarations
13
Major disasters
93
NRI risk · Relatively Moderate
Hurricane
Top hazard

The verdict

Hampden County has a nationally busy FEMA history: 24 declarations, more than 66% of counties in this registry. But the state comparison tempers that reading: the total is 17% below the Massachusetts county mean. FEMA's separate National Risk Index places the county in the riskiest 7%; that score models loss and vulnerability rather than counting declarations.

Riskiest 7%
of U.S. counties for FEMA National Risk Index score
Relatively Moderate
FEMA National Risk Index rating
24
FEMA declarations vs 21 national county avg
279
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 Hampden County compare?

Hampden County vs. all counties in this dataset

FEMA disaster declarations, all-time

24 Top 34% higher than 66% 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

Hampden County's FEMA Risk Index score

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

0/100100/100Massachusetts avg79/10092.8/100
FEMA National Risk Index composite score vs. the Massachusetts county average

What does Hampden County's hazard record show?

Reading the federal records together

The NFIP claims register shows a middle-volume loss record here: 279 paid claims, totaling $2.7M. PlainHazard uses 50-499 claims for this descriptive band; FEMA does not publish it as a safety or coverage category. The $9.8K average describes payments on recorded claims only, leaving uninsured damage and properties without a claim outside the measure.

Start with the state benchmark: a Massachusetts county averages 28.8 federal declaration records, while Hampden County has 24. The gap is 17% 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 92.8/100 (Relatively Moderate). Expected Annual Loss is rated Relatively Moderate (roughly $106.7M in annualized losses). Social vulnerability reads Relatively High and community resilience Relatively 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 2.8 times per year here, based on 79 historical events on record.

Declaration frequency

Nationally, Hampden County's 24 FEMA records form a high-volume history; within Massachusetts, however, the count is 17% below the county mean. 13 entries carry the Major Disaster classification. The largest incident group is Hurricane, appearing 7 times. The full 37-year record averages 0.6 declarations annually. A DR label alone does not say whether Individual Assistance, Public Assistance, or both followed.

59 /100

Historical Activity Index

High historical activity

Hampden County, MA · 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
17/30

24 OpenFEMA declarations, full ingest window (1.2x national county average)

County Disaster Density Moderate
10/25

24 declarations (0.8x state county average of 29)

Major Disaster Share High
14/25

13 of 24 declarations are major disasters (54%)

Hazard Diversity Very High
18/20

7 different disaster types declared in Hampden County

Historical Declaration Activity

Activity Band

High

vs. Massachusetts Avg

-17%

State avg: 28.8

vs. National Avg

+16%

National avg: 20.7

Avg Per Year

0.6

Over 37 years

FEMA NRI 8-hazard radar - Hampden County

Hampden County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 48, Flood 70, Hurricane 70, Tornado 48, Wildfire 8, Drought 25, Heat Wave 48, Winter Storm 70. The simple mean of these eight displayed scores is 48 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 48 8-hazard mean
Hampden County NRI risk profile FIPS 25013 · displayed-hazard mean 48/100
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

24

Above median

Major Disaster share

54%

Major-heavy

NRI risk score

93

Relatively Moderate

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

How often does each hazard strike Hampden 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 2.8 times per year
Ice Storm Relatively High an average of 2.3 times per year
Hurricane Relatively High roughly once every 9 years
Strong Wind Relatively High an average of 1.8 times per year
Earthquake Relatively Moderate roughly once every 715 years
Heat Wave Relatively Moderate 5.1 modeled event-days per year
Cold Wave Relatively Moderate an average of 2.8 times per year
Winter Weather Relatively Moderate an average of 18 times per year
Hail Relatively Moderate an average of 2.9 times per year
Tornado Relatively Moderate roughly once every 5 years
Lightning Relatively Moderate an average of 27 times per year
Landslide Relatively Low roughly once every 2 years
Drought Relatively Low 4 modeled event-days per year
Wildfire Very Low roughly once every 17,020 years
Avalanche Very Low roughly once every 100 years

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

Disaster Types

Hurricane 7
Severe Storm 6
Snowstorm 6
Biological 2
Tornado 1
Severe Ice Storm 1
Flood 1

What Hurricane declarations mean here

Hurricane is the most frequent declaration type on Hampden 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).

Major Disaster - 13 54.2%

of all 24 declarations

Emergency - 11 45.8%

of all 24 declarations

FEMA Declarations Timeline

Year Declarations
2023 1
2020 2
2013 2
2012 2
2011 4
2009 2
2007 1
2006 1
2005 2
2004 1
2003 1
1996 1
1993 1
1991 1
1987 1
Show 1 earlier declaration years
1986 1

Disaster Declarations

How the 24 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 24 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
3599 HURRICANE LEE EM Hurricane 2023-09-15
4496 COVID-19 PANDEMIC DR Biological 2020-03-27
3438 COVID-19 EM Biological 2020-03-13
4110 SEVERE WINTER STORM, SNOWSTORM, AND FLOODING DR Severe Storm 2013-04-19
3350 HURRICANE SANDY EM Hurricane 2012-10-28
4051 SEVERE STORM AND SNOWSTORM DR Severe Storm 2012-01-06
3343 SEVERE STORM EM Severe Storm 2011-11-01
4028 TROPICAL STORM IRENE DR Hurricane 2011-09-03
3330 HURRICANE IRENE EM Hurricane 2011-08-26
1994 SEVERE STORMS AND TORNADOES DR Tornado 2011-06-15
1959 SEVERE WINTER STORM AND SNOWSTORM DR Snowstorm 2011-03-07
1813 SEVERE WINTER STORM AND FLOODING DR Severe Ice Storm 2009-01-05
3296 SEVERE WINTER STORM EM Severe Storm 2008-12-13
1701 SEVERE STORMS AND INLAND AND COASTAL FLOODING DR Severe Storm 2007-05-16
1614 SEVERE STORMS AND FLOODING DR Severe Storm 2005-11-10
3252 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-13
3201 RECORD AND/OR NEAR RECORD SNOW EM Snowstorm 2005-02-17
3191 SNOW EM Snowstorm 2004-01-15
3175 SNOW EM Snowstorm 2003-03-11
1090 BLIZZARD OF 96 DR Snowstorm 1996-01-24
Show 4 earlier declaration records
DR# Title Type Incident Date
3103 BLIZZARDS, HIGH WINDS & RECORD SNOWFALL EM Snowstorm 1993-03-16
914 HURRICANE BOB DR Hurricane 1991-08-26
790 SEVERE STORMS & FLOODING DR Flood 1987-04-18
751 HURRICANE GLORIA DR Hurricane 1985-10-28

Storm Events in Massachusetts

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

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 2,101 2 7 $13.2M
Strong Wind 1,019 4 8 $3.2M
High Wind 722 3 10 $10.8M
Flood 563 0 0 $4.0M
Winter Weather 390 1 14 $1.4M

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

NFIP Flood Insurance Claims

Total Claims

279

Total Paid

$2.7M

Avg Per Claim

$9.8K

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

FEMA National Risk Index

Overall Risk

Relatively Moderate

Score: 92.8/100

Expected Annual Loss

Relatively Moderate

$106.7M/year

Social Vulnerability

Relatively High

Community Resilience

Relatively High

Hazard Risk Breakdown

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

Hampden County's closest FEMA peer: Aroostook County, ME

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

Further reading for this county

Understanding disaster data

Hampden County's NFIP claims file (279 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 Hampden County?
The most common disaster type in Hampden County is Hurricane, with 7 declarations. Other disaster types include Severe Storm (6), Snowstorm (6), Biological (2).
How does Hampden County's FEMA declaration record compare with the Massachusetts average?
The typical Massachusetts county has 28.8 FEMA declaration records; Hampden County has 24, or 17% fewer. Against the national county mean of 20.7, this county's total is 16% higher. The comparison is historical and says nothing about the probability of a future event.
How many major FEMA disaster declarations has Hampden County received?
Hampden County has received 13 major disaster declarations, representing 54% of all 24 disaster declarations.
How many flood insurance claims has Hampden County filed?
Hampden County has 279 National Flood Insurance Program (NFIP) claims totaling $2.7M in payments, with an average of $9.8K per claim.
What was the worst year for disasters in Hampden County?
The most active year for disaster declarations in Hampden County was 2011, with 4 declarations. The county has FEMA disaster data spanning 1986 to 2023.
What is the FEMA National Risk Index score for Hampden County?
According to the FEMA National Risk Index, Hampden County, Massachusetts has an overall risk score of 92.8 out of 100 (Relatively Moderate). The county's social vulnerability rating is Relatively High and community resilience is Relatively High. The Expected Annual Loss (EAL) score is Relatively Moderate, representing $106.7M in annualized losses.
Which natural hazard poses the greatest risk to Hampden County?
The top hazard flagged by FEMA's NRI for Hampden County is Riverine Flooding (risk rating: Relatively High). Other significant hazards include Ice Storm (Relatively High) and Hurricane (Relatively High). FEMA's modeled event frequency puts riverine flooding here at an average of 2.8 times per year, drawn from 79 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.

What this means for Hampden County

Against a Massachusetts county mean of 29 declarations, Hampden County, MA records 24, or 17% fewer. PlainHazard classifies that historical total as high activity.

  • Major Disaster is the largest group (13 of 24) in a declaration history that remains below its state benchmark; frequency here is not a forecast. Massachusetts overview
  • Nationally the county exceeds 66% of recorded county totals, but its own Massachusetts benchmark is higher. The ranking keeps those two contexts separate. Most-disaster rankings
  • Use the data guide to separate this mid-volume insurance-claims file from declaration counts and modeled NRI risk. 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.