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North Dakota · FEMA + NOAA + National Risk Index

Walsh County, ND

41 FEMA disaster declarations (1965-2023), with a FEMA National Risk Index rating of Very Low. Most common hazard: Flood.

41
FEMA declarations
36
Major disasters
29
NRI risk · Very Low
Flood
Top hazard

The verdict

Two federal records point in the busier direction for Walsh County. Its 41 FEMA declarations are 58% above the North Dakota county mean and exceed the count for 97% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it safer than 29%, based on modeled expected annual loss, social vulnerability, and community resilience.

Safer than 29%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
41
FEMA declarations vs 21 national county avg
782
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 Walsh County compare?

Walsh County vs. all counties in this dataset

FEMA disaster declarations, all-time

41 Top 3% higher than 97% 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

Walsh County's FEMA Risk Index score

FEMA National Risk Index composite score vs. the North Dakota county average

0/100100/100North Dakota avg22/10029/100
FEMA National Risk Index composite score vs. the North Dakota county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Walsh County is led by Riverine Flooding (about $5.3M Expected Annual Loss, Historical Loss Ratio Relatively Moderate), while Winter Weather 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 Walsh County's hazard record show?

Reading the federal records together

FEMA's NFIP table contains a substantial paid-claim history for this county: 782 claims and $3.1M 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 $3.9K. 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. Walsh County's 41 federal records stand 58% above the North Dakota county mean of 25.9. 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.

Declaration frequency

The FEMA register is busy by both local and national comparisons. It contains 41 entries for Walsh County, including 36 Major Disaster records, 58% above the North Dakota county mean. Across the 58-year span, that works out to 0.7 declarations a year. Flood leads the file with 25 entries. Declaration type records the federal action taken, not every assistance program approved.

FEMA National Risk Index

This county's FEMA National Risk Index composite lands at 29.0/100 (Very Low), a modest reading against the rest of the country. Expected Annual Loss is rated Very Low (roughly $12.1M in annualized losses), tempered or compounded by a Very Low social-vulnerability score and Relatively Moderate community-resilience score. Of the 18 hazards FEMA models, Winter Weather stands out as the sharpest exposure here, rated Relatively High. FEMA's modeled frequency puts that hazard at an average of 23 times per year here, based on 428 historical events on record.

82 /100

Historical Activity Index

Very High historical activity

Walsh County, ND · 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) Very High
30/30

41 OpenFEMA declarations, full ingest window (2.0x national county average)

County Disaster Density Very High
20/25

41 declarations (1.6x state county average of 26)

Major Disaster Share Very High
22/25

36 of 41 declarations are major disasters (88%)

Hazard Diversity High
10/20

4 different disaster types declared in Walsh County

Historical Declaration Activity

Activity Band

High

vs. North Dakota Avg

+58%

State avg: 25.9

vs. National Avg

+98%

National avg: 20.7

Avg Per Year

0.7

Over 58 years

FEMA NRI 8-hazard radar - Walsh County

Walsh County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 8, Flood 25, Hurricane 0, Tornado 25, Wildfire 25, Drought 8, Heat Wave 8, Winter Storm 70. The simple mean of these eight displayed scores is 21 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 21 8-hazard mean
Walsh County NRI risk profile FIPS 38099 · displayed-hazard mean 21/100
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

41

Very high volume

Major Disaster share

88%

Mostly major

NRI risk score

29

Very Low

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

How often does each hazard strike Walsh 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
Winter Weather Relatively High an average of 23 times per year
Ice Storm Relatively High roughly once every 2 years
Wildfire Relatively Low roughly once every 756 years
Hail Relatively Moderate an average of 3.4 times per year
Cold Wave Relatively Moderate an average of 23 times per year
Tornado Relatively Low roughly once every 1 years
Strong Wind Relatively Low an average of 1.9 times per year
Riverine Flooding Relatively Low an average of 1.6 times per year
Drought Very Low 5.7 modeled event-days per year
Landslide Very Low roughly once every 8 years
Lightning Very Low an average of 26 times per year
Heat Wave Very Low 1.1 modeled event-days per year
Earthquake Very Low roughly once every 12,658 years

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

Flood 25
Severe Storm 13
Biological 2
Coastal Storm 1

What Flood declarations mean here

Flood is the most frequent declaration type on Walsh County's record, 61% of its declarations. Federal flood declarations cover two mechanisms that behave very differently: riverine flooding, which builds over days as a watershed drains and is usually forecast well in advance, and flash flooding, which can arrive in under an hour from rainfall that fell somewhere upstream.

Flood is also the one hazard class where a second federal dataset exists for the same events. The National Flood Insurance Program records what was actually paid on insured losses, so it measures a narrower thing than the declaration count: uninsured damage, and flooding outside mapped special flood hazard areas, never enters it. Reading the two together is more informative than either alone.

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 - 36 87.8%

of all 41 declarations

Emergency - 5 12.2%

of all 41 declarations

FEMA Declarations Timeline

Year Declarations
2023 1
2022 1
2020 4
2019 1
2017 1
2013 3
2011 2
2010 3
2009 1
2006 1
2005 2
2004 1
2002 1
2001 1
2000 1
Show 16 earlier declaration years
1999 1
1998 1
1997 2
1996 1
1995 1
1994 1
1993 1
1989 1
1979 1
1978 1
1975 1
1974 1
1970 1
1969 1
1966 1
1965 1

Disaster Declarations

How the 41 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 41 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4717 FLOODING DR Flood 2023-07-05
4660 SEVERE WINTER STORM AND FLOODING DR Severe Storm 2022-07-13
4553 FLOODING DR Flood 2020-07-09
4509 COVID-19 PANDEMIC DR Biological 2020-04-01
3477 COVID-19 EM Biological 2020-03-13
4475 FLOODING DR Flood 2020-01-21
4444 FLOODING DR Flood 2019-06-12
4323 FLOODING DR Flood 2017-07-12
4128 SEVERE STORMS AND FLOODING DR Severe Storm 2013-07-12
4118 FLOODING DR Flood 2013-05-29
3364 FLOODING EM Flood 2013-04-26
1981 FLOODING DR Flood 2011-05-10
3318 FLOODING EM Flood 2011-04-07
1907 FLOODING DR Flood 2010-04-30
3309 FLOODING EM Flood 2010-03-14
1879 SEVERE WINTER STORM DR Severe Storm 2010-02-26
1829 SEVERE STORMS AND FLOODING DR Severe Storm 2009-03-24
1645 SEVERE STORMS, FLOODING, AND GROUND SATURATION DR Severe Storm 2006-06-05
3247 HURRICANE KATRINA EVACUATION EM Coastal Storm 2005-09-13
1597 SEVERE STORMS, FLOODING, AND GROUND SATURATION DR Severe Storm 2005-07-22
Show 21 earlier declaration records
DR# Title Type Incident Date
1515 SEVERE STORMS, FLOODING, AND GROUND SATURATION DR Severe Storm 2004-05-05
1431 SEVERE STORMS, FLOODING AND TORNADOES DR Severe Storm 2002-09-10
1376 SEVERE STORMS, FLOODING, & GROUND SATURATION DR Flood 2001-05-28
1334 SEVERE STORMS, FLOODING AND GROUND SATURATION DR Severe Storm 2000-06-27
1279 SEVERE STORMS, FLOODING, SNOW, ICE, GROUND SATURATION, LANSLIDES, MUDSLIDES, AND TOR DR Flood 1999-06-08
1220 FLOODING, GROUND SATURATION,SEVERE STORMS DR Flood 1998-06-15
1174 SEVERE FLOODING,SEVERE WINTER STORMS, SNOWMELT, SPRING RAINS DR Flood 1997-04-07
1157 SEVERE WINTER STORMS AND BLIZZARD CONDITIONS DR Severe Storm 1997-01-12
1118 SEVERE STORMS,FLOODING, & ICE JAMS DR Severe Storm 1996-06-05
1050 SEVERE STORMS, FLOODING, AND GROUND SATURATION DR Severe Storm 1995-05-16
1032 SEVERE STORMS, FLOODING DR Severe Storm 1994-07-01
1001 SEVERE STORMS & FLOODING DR Flood 1993-07-26
825 FLOODING DR Flood 1989-05-08
581 SEVERE STORMS, SNOWMELT & FLOODING DR Flood 1979-04-26
554 STORMS, ICE JAMS, SNOWMELT & FLOODING DR Flood 1978-04-17
475 SEVERE STORMS & FLOODING DR Flood 1975-07-11
434 HEAVY RAINS, SNOWMELT & FLOODING DR Flood 1974-05-14
287 SEVERE STORMS & FLOODING DR Flood 1970-06-05
256 FLOODING DR Flood 1969-04-18
216 FLOODING DR Flood 1966-03-23
195 FLOODING DR Flood 1965-05-10

Storm Events in North Dakota

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

Storm Type Events Fatalities Injuries Property Damage
Hail 2,705 0 2 $116.1M
Thunderstorm Wind 2,459 2 10 $67.0M
High Wind 1,184 1 1 $2.9M
Heavy Snow 925 0 3 $650.0K
Blizzard 905 2 2 $60.0M

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

NFIP Flood Insurance Claims

Total Claims

782

Total Paid

$3.1M

Avg Per Claim

$3.9K

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

Very Low

Score: 29.0/100

Expected Annual Loss

Very Low

$12.1M/year

Social Vulnerability

Very Low

Community Resilience

Relatively Moderate

Hazard Risk Breakdown

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

Winter Weather in the model means the accumulation of snow and cold that disrupts rather than destroys: road closures, roof loads, burst pipes and lost heating. Its costs land heavily on transport and on households least able to absorb an interruption.

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

Walsh County's closest FEMA peer: Lee County, KY

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

Further reading for this county

Understanding disaster data

Walsh County's NFIP claims file (782 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 Walsh County?
The most common disaster type in Walsh County is Flood, with 25 declarations. Other disaster types include Severe Storm (13), Biological (2), Coastal Storm (1).
How does Walsh County's FEMA declaration record compare with the North Dakota average?
FEMA lists 41 declaration records for Walsh County. That is 58% above the North Dakota county mean of 25.9. Its count is also 98% 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 Walsh County received?
Walsh County has received 36 major disaster declarations, representing 88% of all 41 disaster declarations.
How many flood insurance claims has Walsh County filed?
Walsh County has 782 National Flood Insurance Program (NFIP) claims totaling $3.1M in payments, with an average of $3.9K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Walsh County?
No. In Walsh County, Winter Weather has the highest National Risk Index rating (Relatively High), while Riverine Flooding leads Expected Annual Loss at about $5.3M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Walsh County?
The most active year for disaster declarations in Walsh County was 2020, with 4 declarations. The county has FEMA disaster data spanning 1965 to 2023.
What is the FEMA National Risk Index score for Walsh County?
According to the FEMA National Risk Index, Walsh County, North Dakota has an overall risk score of 29.0 out of 100 (Very Low). Social vulnerability here rates Very Low, while community resilience comes in at Relatively Moderate. The Expected Annual Loss (EAL) score is Very Low, representing $12.1M in annualized losses.
Which natural hazard poses the greatest risk to Walsh County?
The top hazard flagged by FEMA's NRI for Walsh County is Winter Weather (risk rating: Relatively High). Other significant hazards include Ice Storm (Relatively High) and Wildfire (Relatively Low). FEMA's modeled event frequency puts winter weather here at an average of 23 times per year, drawn from 428 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 Walsh County

Walsh County, ND has 41 federal declaration records, 58% more than the North Dakota county mean of 26; its history sits in PlainHazard's high activity band.

  • Within this above-state-average declaration file, major disaster leads with 36 of 41 records; the category describes past federal action, not the next likely hazard. North Dakota overview
  • The state benchmark and national rank point the same way: this count tops the North Dakota mean and the totals for 97% 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.

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.