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Mississippi · FEMA + NOAA + National Risk Index

Jefferson Davis County, MS

33 FEMA disaster declarations (1969-2026), with a FEMA National Risk Index rating of Very Low. Most common hazard: Hurricane.

33
FEMA declarations
22
Major disasters
23
NRI risk · Very Low
Hurricane
Top hazard

The verdict

Two federal records point in the busier direction for Jefferson Davis County. Its 33 FEMA declarations are 27% above the Mississippi county mean and exceed the count for 91% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it safer than 23%, based on modeled expected annual loss, social vulnerability, and community resilience.

Safer than 23%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
33
FEMA declarations vs 21 national county avg
6
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 Jefferson Davis County compare?

Jefferson Davis County vs. all counties in this dataset

FEMA disaster declarations, all-time

33 Top 9% higher than 91% 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

Jefferson Davis County's FEMA Risk Index score

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

0/100100/100Mississippi avg51/10023.1/100
FEMA National Risk Index composite score vs. the Mississippi county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Jefferson Davis County is led by Riverine Flooding (about $1.6M Expected Annual Loss, Historical Loss Ratio Relatively Moderate), while Hurricane carries the highest National Risk Index rating (Relatively Low). 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 Jefferson Davis County's hazard record show?

Declaration frequency

The FEMA register is busy by both local and national comparisons. It contains 33 entries for Jefferson Davis County, including 22 Major Disaster records, 27% above the Mississippi county mean. Across the 57-year span, that works out to 0.6 declarations a year. Hurricane leads the file with 16 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 23.1/100 (Very Low), a modest reading against the rest of the country. Expected Annual Loss is rated Very Low (roughly $4.7M in annualized losses), tempered or compounded by a Very High social-vulnerability score and Relatively Low community-resilience score. Even the county's top-rated hazard, Hurricane, only reaches Relatively Low on FEMA's scale, none of the 18 modeled hazards stand out here. FEMA's modeled frequency puts that hazard at roughly once every 8 years here, based on 39 historical events on record.

Reading the federal records together

This county has a small entry in FEMA's NFIP paid-claims table: 6 claims and $5.0K 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.

The declaration register points in the busier direction. Jefferson Davis County's 33 federal records stand 27% above the Mississippi 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.

77 /100

Historical Activity Index

Very High historical activity

Jefferson Davis County, MS · 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
24/30

33 OpenFEMA declarations, full ingest window (1.6x national county average)

County Disaster Density High
16/25

33 declarations (1.3x state county average of 26)

Major Disaster Share High
17/25

22 of 33 declarations are major disasters (67%)

Hazard Diversity Very High
20/20

8 different disaster types declared in Jefferson Davis County

Historical Declaration Activity

Activity Band

High

vs. Mississippi Avg

+27%

State avg: 25.9

vs. National Avg

+59%

National avg: 20.7

Avg Per Year

0.6

Over 57 years

FEMA NRI 8-hazard radar - Jefferson Davis County

Jefferson Davis County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 8, Flood 8, Hurricane 25, Tornado 25, Wildfire 8, Drought 25, Heat Wave 25, Winter Storm 25. The simple mean of these eight displayed scores is 19 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 19 8-hazard mean
Jefferson Davis County NRI risk profile FIPS 28065 · displayed-hazard mean 19/100
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

33

Very high volume

Major Disaster share

67%

Major-heavy

NRI risk score

23

Very Low

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

How often does each hazard strike Jefferson Davis 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
Hurricane Relatively Low roughly once every 8 years
Hail Relatively Low an average of 4.2 times per year
Drought Relatively Low 10 modeled event-days per year
Wildfire Very Low roughly once every 438 years
Heat Wave Relatively Low 13 modeled event-days per year
Tornado Relatively Low roughly once every 2 years
Strong Wind Relatively Low an average of 3.3 times per year
Ice Storm Relatively Low roughly once every 1 years
Landslide Very Low roughly once every 4 years
Earthquake Very Low roughly once every 865 years
Lightning Relatively Low an average of 77 times per year
Riverine Flooding Very Low an average of 1 time per year
Winter Weather Very Low an average of 1.7 times per year
Cold Wave Very Low roughly once every 1 years

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

Disaster Types

Hurricane 16
Severe Storm 8
Winter Storm 2
Biological 2
Flood 2
Severe Ice Storm 1
Tornado 1
Snowstorm 1

What Hurricane declarations mean here

Hurricane is the most frequent declaration type on Jefferson Davis County's federal record, 48% 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 - 22 66.7%

of all 33 declarations

Emergency - 11 33.3%

of all 33 declarations

FEMA Declarations Timeline

Year Declarations
2026 2
2025 1
2023 1
2022 1
2021 3
2020 7
2016 1
2013 1
2012 2
2009 1
2008 2
2005 3
2004 1
2003 1
1999 1
Show 5 earlier declaration years
1998 1
1993 1
1977 1
1974 1
1969 1

Disaster Declarations

How the 33 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 33 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4899 SEVERE WINTER STORM DR Winter Storm 2026-02-06
3640 SEVERE WINTER STORM EM Winter Storm 2026-01-24
4874 SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODING DR Severe Storm 2025-05-21
4727 SEVERE STORMS, STRAIGHT-LINE WINDS, AND TORNADOES. DR Severe Storm 2023-08-12
4626 HURRICANE IDA DR Hurricane 2021-10-22
3569 HURRICANE IDA EM Hurricane 2021-08-28
4598 SEVERE WINTER STORMS DR Severe Ice Storm 2021-05-04
3548 HURRICANE DELTA EM Hurricane 2020-10-08
3544 HURRICANE SALLY EM Hurricane 2020-09-14
3539 HURRICANE MARCO AND TROPICAL STORM LAURA EM Hurricane 2020-08-23
4551 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING DR Severe Storm 2020-07-09
4536 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING DR Severe Storm 2020-04-16
4528 COVID-19 PANDEMIC DR Biological 2020-04-05
3474 COVID-19 EM Biological 2020-03-13
4470 SEVERE STORM, STRAIGHT-LINE WINDS, AND FLOODING DR Severe Storm 2019-12-06
4268 SEVERE STORMS AND FLOODING DR Flood 2016-03-25
4101 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2013-02-13
4081 HURRICANE ISAAC DR Hurricane 2012-08-29
3348 TROPICAL STORM ISAAC EM Hurricane 2012-08-28
1837 SEVERE STORMS, FLOODING, AND TORNADOES DR Severe Storm 2009-05-12
Show 13 earlier declaration records
DR# Title Type Incident Date
1794 HURRICANE GUSTAV DR Hurricane 2008-09-22
3291 HURRICANE GUSTAV EM Hurricane 2008-08-30
1604 HURRICANE KATRINA DR Hurricane 2005-08-29
3213 HURRICANE KATRINA EM Hurricane 2005-08-28
1594 HURRICANE DENNIS DR Hurricane 2005-07-10
1550 HURRICANE IVAN DR Hurricane 2004-09-15
1459 SEVERE STORMS, TORNADOES, FLOODS DR Severe Storm 2003-04-24
1251 HURRICANE GEORGES DR Hurricane 1998-10-01
3132 HURRICANE GEORGES EM Hurricane 1998-09-28
968 SEVERE STORMS, HIGH WINDS & TORNADOES DR Tornado 1992-11-25
3032 DROUGHT & FREEZING EM Snowstorm 1977-02-22
430 HEAVY RAINS & FLOODING DR Flood 1974-04-18
271 HURRICANE CAMILLE DR Hurricane 1969-08-18

Storm Events in Mississippi

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

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 5,557 17 60 $93.9M
Flash Flood 1,551 6 9 $83.6M
Hail 1,411 0 0 $90.1M
Heat 1,340 3 0 $0
Tornado 1,097 68 610 $562.0M

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

NFIP Flood Insurance Claims

Total Claims

6

Total Paid

$5.0K

Avg Per Claim

$837

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 23.1/100

Expected Annual Loss

Very Low

$4.7M/year

Social Vulnerability

Very High

Community Resilience

Relatively Low

Hazard Risk Breakdown

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

Hurricane exposure in the model bundles the three ways a tropical system does harm, which arrive on different timescales and are insured differently: wind, storm surge on the coast, and rainfall flooding that can reach far inland well after landfall.

For Jefferson Davis County the two measures on this page point the same way: Hurricane is the county's highest-rated modeled hazard (Relatively Low), and Hurricane declarations also lead its federal record. Where the model and the declaration history agree, the reading is comparatively straightforward, the hazard is both expected and repeatedly realised.

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

Jefferson Davis County's closest FEMA peer: Sullivan County, NH

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

Further reading for this county

Most disaster-prone counties

With 33 FEMA declarations, Jefferson Davis 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 Jefferson Davis County?
The most common disaster type in Jefferson Davis County is Hurricane, with 16 declarations. Other disaster types include Severe Storm (8), Winter Storm (2), Biological (2).
How does Jefferson Davis County's FEMA declaration record compare with the Mississippi average?
FEMA lists 33 declaration records for Jefferson Davis County. That is 27% above the Mississippi county mean of 25.9. Its count is also 59% 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 Jefferson Davis County received?
Jefferson Davis County has received 22 major disaster declarations, representing 67% of all 33 disaster declarations.
How many flood insurance claims has Jefferson Davis County filed?
Jefferson Davis County has 6 National Flood Insurance Program (NFIP) claims totaling $5.0K in payments, with an average of $837 per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Jefferson Davis County?
No. In Jefferson Davis County, Hurricane has the highest National Risk Index rating (Relatively Low), while Riverine Flooding leads Expected Annual Loss at about $1.6M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Jefferson Davis County?
The most active year for disaster declarations in Jefferson Davis County was 2020, with 7 declarations. The county has FEMA disaster data spanning 1969 to 2026.
What is the FEMA National Risk Index score for Jefferson Davis County?
According to the FEMA National Risk Index, Jefferson Davis County, Mississippi has an overall risk score of 23.1 out of 100 (Very Low). Social vulnerability here rates Very High, while community resilience comes in at Relatively Low. The Expected Annual Loss (EAL) score is Very Low, representing $4.7M in annualized losses.
Which natural hazard poses the greatest risk to Jefferson Davis County?
Based on FEMA NRI data, the highest-risk natural hazard in Jefferson Davis County as of the latest release is Hurricane (risk rating: Relatively Low). Other significant hazards include Hail (Relatively Low) and Drought (Relatively Low). FEMA's modeled event frequency puts hurricane here at roughly once every 8 years, drawn from 39 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 Jefferson Davis County

Jefferson Davis County, MS has 33 federal declaration records, 27% more than the Mississippi county mean of 26; its history sits in PlainHazard's high activity band.

  • Within this above-state-average declaration file, major disaster leads with 22 of 33 records; the category describes past federal action, not the next likely hazard. Mississippi overview
  • The state benchmark and national rank point the same way: this count tops the Mississippi mean and the totals for 91% of 3,266 U.S. counties. Most-disaster rankings
  • A short NFIP claims file cannot establish low flood exposure; the data guide explains the limits of each federal measure. 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.