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New Hampshire · FEMA + NOAA + National Risk Index

Strafford County, NH

25 FEMA disaster declarations (1973-2020), with a FEMA National Risk Index rating of Relatively Low. Most common hazard: Severe Storm.

25
FEMA declarations
15
Major disasters
64
NRI risk · Relatively Low
Severe Storm
Top hazard

The verdict

Strafford County has a nationally busy FEMA history: 25 declarations, more than 71% of counties in this registry. But the state comparison tempers that reading: the total is 22% below the New Hampshire county mean. FEMA's separate National Risk Index places the county in the riskiest 36%; that score models loss and vulnerability rather than counting declarations.

Riskiest 36%
of U.S. counties for FEMA National Risk Index score
Relatively Low
FEMA National Risk Index rating
25
FEMA declarations vs 21 national county avg
137
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 Strafford County compare?

Strafford County vs. all counties in this dataset

FEMA disaster declarations, all-time

25 Top 29% higher than 71% 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

Strafford County's FEMA Risk Index score

FEMA National Risk Index composite score vs. the New Hampshire county average

0/100100/100New Hampshire avg70/10064.1/100
FEMA National Risk Index composite score vs. the New Hampshire county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Strafford County is led by Riverine Flooding (about $20.5M Expected Annual Loss, Historical Loss Ratio Relatively Moderate), while Ice Storm carries the highest National Risk Index rating (Relatively 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 Strafford County's hazard record show?

Reading the federal records together

The NFIP claims register shows a middle-volume loss record here: 137 paid claims, totaling $2.3M. PlainHazard uses 50-499 claims for this descriptive band; FEMA does not publish it as a safety or coverage category. The $16.8K average describes payments on recorded claims only, leaving uninsured damage and properties without a claim outside the measure.

Start with the state benchmark: a New Hampshire county averages 31.9 federal declaration records, while Strafford County has 25. The gap is 22% 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 carries a high composite score on FEMA's National Risk Index, 64.1/100, rated Relatively Low. Its Expected Annual Loss rating is Relatively Low (roughly $29.1M in annualized losses), and a Very Low social-vulnerability profile combined with Relatively High community resilience shapes how much of that raw exposure becomes realized harm. Of the 18 hazards FEMA models, Ice Storm stands out as the sharpest exposure here, rated Relatively High. FEMA's modeled frequency puts that hazard at an average of 2.3 times per year here, based on 154 historical events on record.

Declaration frequency

Nationally, Strafford County's 25 FEMA records form a high-volume history; within New Hampshire, however, the count is 22% below the county mean. 15 entries carry the Major Disaster classification. The largest incident group is Severe Storm, appearing 9 times. The full 47-year record averages 0.5 declarations annually. A DR label alone does not say whether Individual Assistance, Public Assistance, or both followed.

58 /100

Historical Activity Index

High historical activity

Strafford County, NH · 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
18/30

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

County Disaster Density Moderate
10/25

25 declarations (0.8x state county average of 32)

Major Disaster Share High
15/25

15 of 25 declarations are major disasters (60%)

Hazard Diversity Very High
15/20

6 different disaster types declared in Strafford County

Historical Declaration Activity

Activity Band

High

vs. New Hampshire Avg

-22%

State avg: 31.9

vs. National Avg

+21%

National avg: 20.7

Avg Per Year

0.5

Over 47 years

FEMA NRI 8-hazard radar - Strafford County

Strafford 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 48, Heat Wave 25, Winter Storm 70. The simple mean of these eight displayed scores is 34 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 34 8-hazard mean
Strafford County NRI risk profile FIPS 33017 · displayed-hazard mean 34/100
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

25

High volume

Major Disaster share

60%

Major-heavy

NRI risk score

64

Relatively Low

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

How often does each hazard strike Strafford 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
Ice Storm Relatively High an average of 2.3 times per year
Earthquake Relatively Low roughly once every 485 years
Hurricane Relatively Low roughly once every 8 years
Riverine Flooding Relatively Moderate roughly once every 1 years
Lightning Relatively Moderate an average of 20 times per year
Drought Relatively Moderate 4.8 modeled event-days per year
Landslide Very Low roughly once every 2 years
Heat Wave Relatively Low 3.6 modeled event-days per year
Winter Weather Relatively Low an average of 19 times per year
Coastal Flooding Relatively Low an average of 3.6 times per year
Strong Wind Relatively Low roughly once every 1 years
Tornado Relatively Low roughly once every 24 years
Cold Wave Relatively Low an average of 1.6 times per year
Wildfire Very Low roughly once every 32,789 years
Hail Very Low an average of 1.9 times per year

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

Disaster Types

Severe Storm 9
Snowstorm 5
Hurricane 5
Flood 3
Biological 2
Severe Ice Storm 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on Strafford County's record, 36% of its declarations. In FEMA's vocabulary this covers convective weather: thunderstorm straight-line winds, large hail, and the multi-day outbreaks that often carry embedded tornadoes. Activity is heaviest in spring and summer, though the season varies by region.

These events behave differently from a hurricane on paper. Damage tends to be distributed along a storm track rather than concentrated on a coastline, and a declaration typically follows an outbreak that crossed several counties over a few days, not a single point of impact. Because the qualifying threshold is the cost of uninsured public and individual losses rather than storm intensity, two similar storms can produce a declaration in one year and none in another.

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 - 15 60.0%

of all 25 declarations

Emergency - 10 40.0%

of all 25 declarations

FEMA Declarations Timeline

Year Declarations
2020 2
2018 1
2015 1
2013 2
2012 1
2011 2
2010 1
2009 2
2008 1
2007 1
2006 1
2005 2
2003 1
2001 1
1998 1
Show 5 earlier declaration years
1997 1
1993 1
1991 1
1987 1
1973 1

Disaster Declarations

How the 25 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 25 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4516 COVID-19 PANDEMIC DR Biological 2020-04-03
3445 COVID-19 EM Biological 2020-03-13
4371 SEVERE WINTER STORM AND SNOWSTORM DR Snowstorm 2018-06-08
4209 SEVERE WINTER STORM AND SNOWSTORM DR Severe Storm 2015-03-25
4105 SEVERE WINTER STORM AND SNOWSTORM DR Severe Storm 2013-03-19
3360 HURRICANE SANDY EM Hurricane 2012-10-30
3344 SEVERE STORM EM Severe Storm 2011-11-01
4026 TROPICAL STORM IRENE DR Hurricane 2011-09-03
3333 HURRICANE IRENE EM Hurricane 2011-08-27
1892 SEVERE WINTER STORM DR Severe Storm 2010-03-29
1812 SEVERE WINTER STORM DR Severe Ice Storm 2009-01-02
3297 SEVERE WINTER STORM EM Severe Storm 2008-12-13
1782 SEVERE STORMS, TORNADO, AND FLOODING DR Severe Storm 2008-08-11
1695 SEVERE STORMS AND FLOODING DR Severe Storm 2007-04-27
1643 SEVERE STORMS AND FLOODING DR Severe Storm 2006-05-25
3258 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-19
3207 RECORD AND/OR NEAR RECORD SNOW EM Snowstorm 2005-03-30
3177 SNOW EM Snowstorm 2003-03-11
3166 SNOW EM Snowstorm 2001-03-28
1199 SEVERE ICE STORM, RAINS AND HIGH WINDS DR Severe Storm 1998-01-15
Show 5 earlier declaration records
DR# Title Type Incident Date
1144 FALL NORTHEASTER RAINSTORM DR Flood 1996-10-29
3101 BLIZZARDS, HIGH WINDS & RECORD SNOWFALL EM Snowstorm 1993-03-16
917 HURRICANE BOB & SEVERE STORMS DR Hurricane 1991-09-09
789 SEVERE STORMS & FLOODING DR Flood 1987-04-16
399 SEVERE STORMS & FLOODING DR Flood 1973-07-11

Storm Events in New Hampshire

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

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 921 3 48 $1.9M
Heavy Snow 344 0 0 $0
Winter Storm 300 1 0 $0
Hail 278 0 0 $17.1K
Flash Flood 256 0 1 $26.9M

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

NFIP Flood Insurance Claims

Total Claims

137

Total Paid

$2.3M

Avg Per Claim

$16.8K

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

FEMA National Risk Index

Overall Risk

Relatively Low

Score: 64.1/100

Expected Annual Loss

Relatively Low

$29.1M/year

Social Vulnerability

Very Low

Community Resilience

Relatively High

Hazard Risk Breakdown

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

Ice storms load power lines and tree limbs with accumulating freezing rain until they fail. The characteristic cost is infrastructure and multi-day power loss across a wide area rather than structural damage to buildings, which is why their consequences often outlast the weather that caused them.

Worth noting for Strafford County: the model and the federal record do NOT point at the same hazard. Ice Storm carries the highest modeled rating (Relatively High), while the county's declaration history is led by Severe Storm. 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

Strafford County's closest FEMA peer: Dorado Municipio, PR

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

Further reading for this county

Understanding disaster data

Strafford County's NFIP claims file (137 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 Strafford County?
The most common disaster type in Strafford County is Severe Storm, with 9 declarations. Other disaster types include Snowstorm (5), Hurricane (5), Flood (3).
How does Strafford County's FEMA declaration record compare with the New Hampshire average?
The typical New Hampshire county has 31.9 FEMA declaration records; Strafford County has 25, or 22% fewer. Against the national county mean of 20.7, this county's total is 21% higher. The comparison is historical and says nothing about the probability of a future event.
How many major FEMA disaster declarations has Strafford County received?
Strafford County has received 15 major disaster declarations, representing 60% of all 25 disaster declarations.
How many flood insurance claims has Strafford County filed?
Strafford County has 137 National Flood Insurance Program (NFIP) claims totaling $2.3M in payments, with an average of $16.8K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Strafford County?
No. In Strafford County, Ice Storm has the highest National Risk Index rating (Relatively High), while Riverine Flooding leads Expected Annual Loss at about $20.5M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Strafford County?
The most active year for disaster declarations in Strafford County was 2005, with 2 declarations. The county has FEMA disaster data spanning 1973 to 2020.
What is the FEMA National Risk Index score for Strafford County?
According to the FEMA National Risk Index, Strafford County, New Hampshire has an overall risk score of 64.1 out of 100 (Relatively Low). On social vulnerability the county rates Very Low; on community resilience, Relatively High. The Expected Annual Loss (EAL) score is Relatively Low, representing $29.1M in annualized losses.
Which natural hazard poses the greatest risk to Strafford County?
FEMA's NRI data points to Strafford County is Ice Storm (risk rating: Relatively High). Other significant hazards include Earthquake (Relatively Low) and Hurricane (Relatively Low). FEMA's modeled event frequency puts ice storm here at an average of 2.3 times per year, drawn from 154 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.

What this means for Strafford County

Against a New Hampshire county mean of 32 declarations, Strafford County, NH records 25, or 22% fewer. PlainHazard classifies that historical total as high activity.

  • Major Disaster is the largest group (15 of 25) in a declaration history that remains below its state benchmark; frequency here is not a forecast. New Hampshire overview
  • Nationally the county exceeds 71% of recorded county totals, but its own New Hampshire 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.