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Oklahoma · FEMA + NOAA + National Risk Index

Grant County, OK

32 FEMA disaster declarations (1973-2021), with a FEMA National Risk Index rating of Very Low. Most common hazard: Severe Storm.

32
FEMA declarations
25
Major disasters
28
NRI risk · Very Low
Severe Storm
Top hazard

The verdict

Grant County has a nationally busy FEMA history: 32 declarations, more than 89% of counties in this registry. But the state comparison tempers that reading: the total is 1% below the Oklahoma county mean. FEMA's separate National Risk Index places the county safer than 28%; that score models loss and vulnerability rather than counting declarations.

Safer than 28%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
32
FEMA declarations vs 21 national county avg
9
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 40053 · Grant County 32 declarations · rank 320/3,266

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

  • DECL-HEAVY 32
  • MAJOR-MID 78%
  • RANK-UPPER #320
  • PHOTO-FINISH Perry
  • NRI-LOW Very Low
  • ACT-HIGH High
  • TYPE-LEAD Severe Storm
  • VS-ST-BELOW -1%

Nearest declaration peer: Perry, MS (0 declaration gap)

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

Grant County among high-volume declaration counties

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

declarations

What this shows Grant County carries 32 FEMA declaration records, ranked 320 of 3,266 counties in this registry.

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

Where Grant County ranks in the national declaration registry

Grant County vs. high-volume counties in this registry

FEMA disaster declarations, all-time · Grant County

32 Top 11% higher than 89% 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

Grant County's FEMA Risk Index score

0/100100/100Oklahoma avg56/10027.8/100
FEMA National Risk Index composite score vs. the Oklahoma county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Grant County is led by Cold Wave (about $2.0M Expected Annual Loss, Historical Loss Ratio Very High), 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 Grant County's hazard record show?

FEMA National Risk Index

This county's FEMA National Risk Index composite lands at 27.8/100 (Very Low), a modest reading against the rest of the country. Expected Annual Loss is rated Very Low (roughly $7.5M in annualized losses), tempered or compounded by a Relatively High social-vulnerability score and Relatively High community-resilience score. 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 roughly once every 1 years here, based on 50 historical events on record.

Reading the federal records together

This county has a small entry in FEMA's NFIP paid-claims table: 9 claims and $110.2K paid in total. PlainHazard calls 1-49 claims a light registry record, a label for this dataset rather than a finding that flood exposure is low. A short claims history can also reflect insurance take-up, the period covered, or losses that were never insured.

Start with the state benchmark: a Oklahoma county averages 32.2 federal declaration records, while Grant County has 32. The gap is 1% 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.

73 /100

Historical Activity Index

High historical activity

Grant County, OK · 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
23/30

32 OpenFEMA declarations, full ingest window (1.5x national county average)

County Disaster Density Moderate
12/25

32 declarations (1.0x state county average of 32)

Major Disaster Share Very High
20/25

25 of 32 declarations are major disasters (78%)

Hazard Diversity Very High
18/20

7 different disaster types declared in Grant County

FEMA NRI 8-hazard radar - Grant County

Grant County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 8, Flood 8, Hurricane 8, Tornado 25, Wildfire 8, Drought 48, Heat Wave 25, Winter Storm 70. The simple mean of these eight displayed scores is 25 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 25 8-hazard mean
Grant County NRI risk profile FIPS 40053 · displayed-hazard mean 25/100
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

32

Very high volume

Major Disaster share

78%

Mostly major

NRI risk score

28

Very Low

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

How often does each hazard strike Grant 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 roughly once every 1 years
Drought Relatively Moderate 75 modeled event-days per year
Cold Wave Relatively Moderate an average of 2.8 times per year
Hail Relatively Low an average of 9.4 times per year
Heat Wave Relatively Low 17 modeled event-days per year
Wildfire Very Low roughly once every 1,250 years
Tornado Relatively Low roughly once every 1 years
Landslide Very Low roughly once every 8 years
Earthquake Very Low roughly once every 985 years
Strong Wind Very Low an average of 6.1 times per year
Hurricane Very Low roughly once every 174 years
Winter Weather Very Low an average of 8.8 times per year
Riverine Flooding Very Low an average of 1.1 times per year
Lightning Very Low an average of 51 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 16
Severe Ice Storm 8
Flood 3
Biological 2
Fire 1
Hurricane 1
Tornado 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on Grant County's record, 50% 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 - 25 78.1%

of all 32 declarations

Emergency - 7 21.9%

of all 32 declarations

FEMA Declarations Timeline

Year Declarations
2021 3
2020 2
2019 1
2016 2
2015 1
2013 1
2012 1
2011 1
2010 3
2009 1
2008 2
2007 4
2006 1
2005 1
2002 1
Show 6 earlier declaration years
1995 2
1993 1
1987 1
1975 1
1974 1
1973 1

Disaster Declarations

How the 32 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 32 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4587 SEVERE WINTER STORMS DR Severe Ice Storm 2021-02-24
3555 SEVERE WINTER STORM EM Severe Ice Storm 2021-02-17
4575 SEVERE WINTER STORM DR Severe Ice Storm 2020-12-21
4530 COVID-19 PANDEMIC DR Biological 2020-04-05
3462 COVID-19 EM Biological 2020-03-13
4438 SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODING DR Severe Storm 2019-06-01
4256 SEVERE WINTER STORMS AND FLOODING DR Severe Storm 2016-02-10
4247 SEVERE WINTER STORMS AND FLOODING DR Severe Ice Storm 2015-12-29
4222 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING DR Severe Storm 2015-05-26
4109 SEVERE WINTER STORM AND SNOWSTORM DR Severe Storm 2013-04-08
4064 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING DR Severe Storm 2012-06-14
3316 SEVERE WINTER STORM EM Severe Storm 2011-02-02
1917 SEVERE STORMS, TORNADOES, AND STRAIGHT-LINE WINDS DR Severe Storm 2010-05-24
1883 SEVERE WINTER STORM DR Severe Ice Storm 2010-03-05
3308 SEVERE WINTER STORM EM Severe Storm 2010-01-30
1803 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2008-10-09
1775 SEVERE STORMS AND FLOODING DR Severe Storm 2008-07-09
3280 SEVERE WINTER STORMS EM Severe Ice Storm 2007-12-10
1712 SEVERE STORMS, FLOODING, AND TORNADOES DR Severe Storm 2007-07-07
1707 SEVERE STORMS, TORNADOES AND FLOODING DR Severe Storm 2007-06-07
Show 12 earlier declaration records
DR# Title Type Incident Date
1678 SEVERE WINTER STORMS DR Severe Storm 2007-02-01
3272 SEVERE WINTER STORMS AND FLOODING EM Severe Ice Storm 2007-01-14
1623 EXTREME WILDFIRE THREAT DR Fire 2006-01-10
3219 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-05
1401 SEVERE WINTER ICE STORM DR Severe Ice Storm 2002-02-01
1066 SEVERE STORMS AND FLOODING DR Severe Storm 1995-09-01
1058 TORNADOES, SEVERE STORMS AND FLOODING DR Tornado 1995-06-26
991 SEVERE STORMS, TORNADOES & FLOODING DR Severe Storm 1993-05-12
778 SEVERE STORMS & FLOODING DR Flood 1986-10-14
453 SEVERE STORMS & FLOODING DR Flood 1974-11-26
404 SEVERE STORMS & FLOODING DR Flood 1973-10-13
392 SEVERE STORMS, FLOODING, & TORNADOES DR Severe Storm 1973-06-13

Storm Events in Oklahoma

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

Storm Type Events Fatalities Injuries Property Damage
Hail 5,894 0 1 $19.8M
Thunderstorm Wind 5,592 6 36 $199.5M
Drought 2,935 0 0 $0
Heat 2,134 7 428 $0
Excessive Heat 1,771 2 401 $0

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

NFIP Flood Insurance Claims

Total Claims

9

Total Paid

$110.2K

Avg Per Claim

$12.2K

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 27.8/100

Expected Annual Loss

Very Low

$7.5M/year

Social Vulnerability

Relatively High

Community Resilience

Relatively High

Hazard Risk Breakdown

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

Grant County's closest FEMA peer: San Jacinto County, TX

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

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Grant 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

Most disaster-prone counties

With 32 FEMA declarations, Grant County sits in the high-volume declaration band - see how that count ranks against other U.S. counties.

More PlainHazard guides

Frequently Asked Questions

What is the most common disaster type in Grant County?
The most common disaster type in Grant County is Severe Storm, with 16 declarations. Other disaster types include Severe Ice Storm (8), Flood (3), Biological (2).
How does Grant County's FEMA declaration record compare with the Oklahoma average?
The typical Oklahoma county has 32.2 FEMA declaration records; Grant County has 32, or 1% fewer. Against the national county mean of 20.7, this county's total is 54% higher. The comparison is historical and says nothing about the probability of a future event.
How many major FEMA disaster declarations has Grant County received?
Grant County has received 25 major disaster declarations, representing 78% of all 32 disaster declarations.
How many flood insurance claims has Grant County filed?
Grant County has 9 National Flood Insurance Program (NFIP) claims totaling $110.2K in payments, with an average of $12.2K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Grant County?
No. In Grant County, Ice Storm has the highest National Risk Index rating (Relatively High), while Cold Wave leads Expected Annual Loss at about $2.0M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Grant County?
The most active year for disaster declarations in Grant County was 2007, with 4 declarations. The county has FEMA disaster data spanning 1973 to 2021.
What is the FEMA National Risk Index score for Grant County?
According to the FEMA National Risk Index, Grant County, Oklahoma has an overall risk score of 27.8 out of 100 (Very Low). The county's social vulnerability rating is Relatively High and community resilience is Relatively High. The Expected Annual Loss (EAL) score is Very Low, representing $7.5M in annualized losses.
Which natural hazard poses the greatest risk to Grant County?
FEMA's NRI data points to Grant County is Ice Storm (risk rating: Relatively High). Other significant hazards include Drought (Relatively Moderate) and Cold Wave (Relatively Moderate). FEMA's modeled event frequency puts ice storm here at roughly once every 1 years, drawn from 50 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.

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