PlainHazard

If you are in immediate danger, call 911.

The data below is historical (NOAA Storm Events / FEMA), not a live alert. For current warnings and evacuation orders, check the National Weather Service, Ready.gov, or FEMA.gov.

Indiana · FEMA + NOAA + National Risk Index

Jefferson County, IN

24 FEMA disaster declarations (1968-2026), with a FEMA National Risk Index rating of Relatively Low. Most common hazard: Severe Storm.

24
FEMA declarations
20
Major disasters
48
NRI risk · Relatively Low
Severe Storm
Top hazard

The verdict

Two federal records point in the busier direction for Jefferson County. Its 24 FEMA declarations are 40% above the Indiana county mean and exceed the count for 66% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it safer than 48%, based on modeled expected annual loss, social vulnerability, and community resilience.

Safer than 48%
of U.S. counties for FEMA National Risk Index score
Relatively Low
FEMA National Risk Index rating
24
FEMA declarations vs 21 national county avg
246
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.

View my watchlist

FEMA OpenFEMA declaration desk

County FIPS 18077 · Jefferson County 24 declarations · rank 1025/3,266

DECL-HEAVY · MAJOR-HEAVY · RANK-LOWER · PHOTO-FINISH · NRI-LOW · ACT-HIGH · TYPE-LEAD · VS-ST-ABOVE

  • DECL-HEAVY 24
  • MAJOR-HEAVY 83%
  • RANK-LOWER #1,025
  • PHOTO-FINISH Eddy
  • NRI-LOW 48
  • ACT-HIGH High
  • TYPE-LEAD Severe Storm
  • VS-ST-ABOVE +40%

Nearest declaration peer: Eddy, ND (0 declaration gap)

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

Jefferson County in the declaration-count neighbourhood

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

declarations

What this shows Jefferson County carries 24 FEMA declaration records, ranked 1025 of 3,266 counties in this registry.

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

How Jefferson County's FEMA declaration count compares nationally

Jefferson County vs. all counties in this dataset

FEMA disaster declarations, all-time · Jefferson County

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 · 2026-08-25

Jefferson County's FEMA Risk Index score

0/100100/100Indiana avg46/10048.3/100
FEMA National Risk Index composite score vs. the Indiana county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Jefferson County is led by Riverine Flooding (about $8.3M Expected Annual Loss, Historical Loss Ratio Relatively High), while Landslide 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 County's hazard record show?

Reading the federal records together

The NFIP claims register shows a middle-volume loss record here: 246 paid claims, totaling $5.5M. PlainHazard uses 50-499 claims for this descriptive band; FEMA does not publish it as a safety or coverage category. The $22.4K average describes payments on recorded claims only, leaving uninsured damage and properties without a claim outside the measure.

The declaration register points in the busier direction. Jefferson County's 24 federal records stand 40% above the Indiana county mean of 17.1. 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.

FEMA National Risk Index

FEMA's data shows an elevated National Risk Index composite of 48.3/100 for this county (Relatively Low rating). Expected Annual Loss comes in at Relatively Low (roughly $16.1M in annualized losses). Social vulnerability (Relatively Low) and community resilience (Relatively High) both factor into how that raw exposure plays out on the ground. Even the county's top-rated hazard, Landslide, 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 4 years here.

74 /100

Historical Activity Index

High historical activity

Jefferson County, IN · 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 High
18/25

24 declarations (1.4x state county average of 17)

Major Disaster Share Very High
21/25

20 of 24 declarations are major disasters (83%)

Hazard Diversity Very High
18/20

7 different disaster types declared in Jefferson County

FEMA NRI 8-hazard radar - Jefferson County

Jefferson County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 25, Flood 25, Hurricane 8, Tornado 48, Wildfire 8, Drought 8, Heat Wave 8, Winter Storm 48. The simple mean of these eight displayed scores is 22 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 22 8-hazard mean
Jefferson County NRI risk profile FIPS 18077 · displayed-hazard mean 22/100
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

83%

Mostly major

NRI risk score

48

Relatively Low

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

How often does each hazard strike Jefferson 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
Landslide Relatively Low roughly once every 4 years
Strong Wind Relatively Moderate an average of 5.5 times per year
Tornado Relatively Moderate roughly once every 4 years
Earthquake Relatively Low roughly once every 456 years
Ice Storm Relatively Moderate roughly once every 1 years
Riverine Flooding Relatively Low an average of 3.3 times per year
Lightning Relatively Low an average of 50 times per year
Cold Wave Relatively Low an average of 1.4 times per year
Heat Wave Very Low 4.8 modeled event-days per year
Drought Very Low 3.5 modeled event-days per year
Winter Weather Relatively Low an average of 11 times per year
Hail Very Low an average of 3.7 times per year
Hurricane Very Low roughly once every 100 years
Wildfire Very Low roughly once every 41,091 years

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

Disaster Types

Severe Storm 12
Flood 6
Biological 2
Winter Storm 1
Hurricane 1
Snowstorm 1
Tornado 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on Jefferson 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 - 20 83.3%

of all 24 declarations

Emergency - 4 16.7%

of all 24 declarations

FEMA Declarations Timeline

Year Declarations
2026 1
2025 1
2020 2
2018 1
2012 1
2011 1
2009 1
2008 2
2005 3
2004 1
2002 1
1997 1
1996 2
1992 2
1991 1
Show 3 earlier declaration years
1990 1
1974 1
1968 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
3641 SEVERE WINTER STORM EM Winter Storm 2026-01-24
4882 SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODING DR Flood 2025-07-22
4515 COVID-19 PANDEMIC DR Biological 2020-04-03
3456 COVID-19 EM Biological 2020-03-13
4363 SEVERE STORMS AND FLOODING DR Flood 2018-05-04
4058 SEVERE STORMS, STRAIGHT-LINE WINDS, AND TORNADOES DR Severe Storm 2012-03-09
1997 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND DR Severe Storm 2011-06-23
1828 SEVERE WINTER STORM DR Severe Storm 2009-03-05
1795 SEVERE STORMS AND FLOODING DR Severe Storm 2008-09-23
1766 SEVERE STORMS, FLOODING, AND TORNADOES DR Severe Storm 2008-06-08
3238 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-10
1573 SEVERE WINTER STORMS AND FLOODING DR Severe Storm 2005-01-21
3197 SNOW EM Snowstorm 2005-01-11
1520 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2004-06-03
1418 SEVERE STORMS, TORNADOES AND FLOODING DR Severe Storm 2002-06-13
1165 SEVERE STORMS AND FLOODING DR Severe Storm 1997-03-06
1125 SEVERE STORMS AND FLOODING DR Severe Storm 1996-07-03
1109 BLIZZARD OF 96 DR Flood 1996-04-02
962 SEVERE STORMS, TORNADOES & FLOODING DR Severe Storm 1992-09-18
953 SEVERE STORMS & FLASH FLOODING DR Flood 1992-08-17
Show 4 earlier declaration records
DR# Title Type Incident Date
891 SEVERE STORMS & FLOODING DR Flood 1991-01-05
869 SEVERE STORMS, TORNADOES & FLOODING DR Severe Storm 1990-06-04
423 TORNADOES DR Tornado 1974-04-04
247 FLOODING DR Flood 1968-07-30

Storm Events in Indiana

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

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 4,886 16 73 $57.6M
Hail 1,643 0 0 $1.7M
Winter Weather 1,166 32 80 $2.5M
Flood 850 13 3 $16.0M
Flash Flood 648 14 5 $97.9M

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

NFIP Flood Insurance Claims

Total Claims

246

Total Paid

$5.5M

Avg Per Claim

$22.4K

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

FEMA National Risk Index

Overall Risk

Relatively Low

Score: 48.3/100

Expected Annual Loss

Relatively Low

$16.1M/year

Social Vulnerability

Relatively Low

Community Resilience

Relatively High

Hazard Risk Breakdown

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

Landslide risk is a function of slope, soil and water, so it is usually a SECOND-ORDER hazard: it is triggered by the rainfall, snowmelt, wildfire burn scars or seismic shaking that came first. That is why a county can carry high landslide exposure whose realized damage is recorded under a flood or storm declaration instead.

Worth noting for Jefferson County: the model and the federal record do NOT point at the same hazard. Landslide carries the highest modeled rating (Relatively Low), 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

Jefferson County's closest FEMA peer: Blue Earth County, MN

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

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Jefferson 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

Understanding disaster data

Jefferson County's NFIP claims file (246 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 Jefferson County?
The most common disaster type in Jefferson County is Severe Storm, with 12 declarations. Other disaster types include Flood (6), Biological (2), Winter Storm (1).
How does Jefferson County's FEMA declaration record compare with the Indiana average?
FEMA lists 24 declaration records for Jefferson County. That is 40% above the Indiana county mean of 17.1. Its count is also 16% 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 County received?
Jefferson County has received 20 major disaster declarations, representing 83% of all 24 disaster declarations.
How many flood insurance claims has Jefferson County filed?
Jefferson County has 246 National Flood Insurance Program (NFIP) claims totaling $5.5M in payments, with an average of $22.4K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Jefferson County?
No. In Jefferson County, Landslide has the highest National Risk Index rating (Relatively Low), while Riverine Flooding leads Expected Annual Loss at about $8.3M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Jefferson County?
The most active year for disaster declarations in Jefferson County was 2005, with 3 declarations. The county has FEMA disaster data spanning 1968 to 2026.
What is the FEMA National Risk Index score for Jefferson County?
According to the FEMA National Risk Index, Jefferson County, Indiana has an overall risk score of 48.3 out of 100 (Relatively Low). Social vulnerability here rates Relatively Low, while community resilience comes in at Relatively High. The Expected Annual Loss (EAL) score is Relatively Low, representing $16.1M in annualized losses.
Which natural hazard poses the greatest risk to Jefferson County?
The top hazard flagged by FEMA's NRI for Jefferson County is Landslide (risk rating: Relatively Low). Other significant hazards include Strong Wind (Relatively Moderate) and Tornado (Relatively Moderate). FEMA's modeled event frequency puts landslide here at roughly once every 4 years. 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.

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