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Kentucky · FEMA + NOAA + National Risk Index

Johnson County, KY

48 FEMA disaster declarations (1967-2026), with a FEMA National Risk Index rating of Relatively Low. Most common hazard: Severe Storm.

48
FEMA declarations
39
Major disasters
71
NRI risk · Relatively Low
Severe Storm
Top hazard

The verdict

Two federal records point in the busier direction for Johnson County. Its 48 FEMA declarations are 71% above the Kentucky county mean and exceed the count for 99% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it in the riskiest 29%, based on modeled expected annual loss, social vulnerability, and community resilience.

Riskiest 29%
of U.S. counties for FEMA National Risk Index score
Relatively Low
FEMA National Risk Index rating
48
FEMA declarations vs 21 national county avg
309
NFIP flood insurance claims filed

FEMA's National Risk Index and its declaration registry are separate measures. This county's registry includes Fire Management Assistance (FM) records, which are not presidential disaster declarations, alongside Major Disaster (DR) and Emergency (EM) records.

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FEMA OpenFEMA declaration desk

County FIPS 21115 · Johnson County 48 declarations · rank 29/3,266

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

  • DECL-HEAVY 48
  • MAJOR-HEAVY 81%
  • RANK-TOP #29
  • PHOTO-FINISH Tangipahoa
  • NRI-LOW 71
  • ACT-HIGH High
  • TYPE-LEAD Severe Storm
  • VS-ST-HIGH +71%

Nearest declaration peer: Tangipahoa, LA (0 declaration gap)

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

Johnson County among high-volume declaration counties

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

declarations

What this shows Johnson County carries 48 FEMA declaration records, ranked 29 of 3,266 counties in this registry.

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

Where Johnson County ranks in the national declaration registry

Johnson County vs. high-volume counties in this registry

FEMA disaster declarations, all-time · Johnson County

48 Top 1% higher than 99% 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

Johnson County's FEMA Risk Index score

0/100100/100Kentucky avg44/10071.1/100
FEMA National Risk Index composite score vs. the Kentucky county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Johnson County is led by Riverine Flooding (about $18.3M Expected Annual Loss, Historical Loss Ratio Relatively Moderate), while Landslide carries the highest National Risk Index rating (Relatively Moderate). 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 Johnson County's hazard record show?

Reading the federal records together

The NFIP claims register shows a middle-volume loss record here: 309 paid claims, totaling $5.2M. PlainHazard uses 50-499 claims for this descriptive band; FEMA does not publish it as a safety or coverage category. The $17.0K 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. Johnson County's 48 federal records stand 71% above the Kentucky county mean of 28.1. 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

This county carries a high composite score on FEMA's National Risk Index, 71.1/100, rated Relatively Low. Its Expected Annual Loss rating is Relatively Low (roughly $20.5M in annualized losses), and a Very High social-vulnerability profile combined with Very Low community resilience shapes how much of that raw exposure becomes realized harm. Among the 18 modeled hazards, Landslide carries the county's highest rating, a mid-range Relatively Moderate. FEMA's modeled frequency puts that hazard at roughly once every 1 years here.

91 /100

Historical Activity Index

Very High historical activity

Johnson County, KY · 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

48 OpenFEMA declarations, full ingest window (2.3x national county average)

County Disaster Density Very High
21/25

48 declarations (1.7x state county average of 28)

Major Disaster Share Very High
20/25

39 of 48 declarations are major disasters (81%)

Hazard Diversity Very High
20/20

10 different disaster types declared in Johnson County

FEMA NRI 8-hazard radar - Johnson County

Johnson County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 8, Flood 48, Hurricane 8, Tornado 25, Wildfire 25, Drought 0, Heat Wave 25, Winter Storm 48. The simple mean of these eight displayed scores is 23 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 23 8-hazard mean
Johnson County NRI risk profile FIPS 21115 · displayed-hazard mean 23/100
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

48

Very high volume

Major Disaster share

81%

Mostly major

NRI risk score

71

Relatively Low

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

How often does each hazard strike Johnson 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 Moderate roughly once every 1 years
Riverine Flooding Relatively Moderate an average of 1.5 times per year
Wildfire Relatively Low roughly once every 138 years
Winter Weather Relatively Moderate an average of 15 times per year
Heat Wave Relatively Low 2.5 modeled event-days per year
Hurricane Very Low roughly once every 44 years
Lightning Relatively Low an average of 50 times per year
Earthquake Very Low roughly once every 732 years
Hail Relatively Low an average of 3.4 times per year
Cold Wave Relatively Low roughly once every 1 years
Ice Storm Relatively Low roughly once every 3 years
Strong Wind Relatively Low an average of 3 times per year
Tornado Relatively Low roughly once every 23 years
Avalanche Very Low roughly once every 100 years
Drought No Rating 3.2 modeled event-days 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 23
Flood 11
Severe Ice Storm 3
Snowstorm 3
Biological 2
Fire 2
Winter Storm 1
Tropical Storm 1
Hurricane 1
Tornado 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on Johnson County's record, 48% 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 - 39 81.3%

of all 48 declarations

Emergency - 7 14.6%

of all 48 declarations

Fire Management - 2 4.2%

of all 48 declarations

FEMA Declarations Timeline

Year Declarations
2026 1
2025 5
2023 2
2022 2
2021 2
2020 3
2019 1
2018 1
2015 3
2014 1
2012 1
2011 1
2009 2
2007 1
2005 1
Show 17 earlier declaration years
2004 1
2003 2
2002 2
2001 2
2000 1
1998 2
1997 1
1996 1
1995 1
1994 1
1993 1
1991 1
1989 1
1984 1
1979 1
1977 1
1967 1

Disaster Declarations

How the 48 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 48 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
3633 SEVERE WINTER STORM EM Winter Storm 2026-01-24
4864 SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, FLOODING, LANDSLIDES, AND MUDSLIDES DR Severe Storm 2025-04-24
3626 SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODING EM Severe Storm 2025-04-03
4860 SEVERE STORMS, STRAIGHT-LINE WINDS, FLOODING, LANDSLIDES, AND MUDSLIDES DR Severe Storm 2025-02-24
3624 SEVERE STORMS, STRAIGHT-LINE WINDS, FLOODING, AND LANDSLIDES EM Severe Storm 2025-02-16
4848 REMNANTS OF HURRICANE HELENE DR Tropical Storm 2024-11-26
4711 SEVERE STORMS, STRAIGHT-LINE WINDS, FLOODING, LANDSLIDES, AND MUDSLIDES DR Flood 2023-05-09
4702 SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, FLOODING, LANDSLIDES, AND MUDSLIDES DR Severe Storm 2023-04-10
4663 SEVERE STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES DR Flood 2022-07-29
4643 SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, FLOODING, LANDSLIDES DR Severe Storm 2022-02-27
4595 SEVERE, STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES DR Flood 2021-04-23
4592 SEVERE WINTER STORMS, LANDSLIDES, AND MUDSLIDES DR Severe Ice Storm 2021-03-31
4540 SEVERE STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES DR Severe Storm 2020-04-24
4497 COVID-19 PANDEMIC DR Biological 2020-03-28
3469 COVID-19 EM Biological 2020-03-13
4428 SEVERE STORMS, STRAIGHT-LINE WINDS, FLOODING, LANDSLIDES, AND MUDSLIDES DR Severe Storm 2019-04-17
4358 SEVERE STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES DR Flood 2018-04-12
4239 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, FLOODING, LANDSLIDES, AND MUDSLIDE DR Severe Storm 2015-08-12
4218 SEVERE WINTER STORM, SNOWSTORM, FLOODING, LANDSLIDES, AND MUDSLIDES DR Flood 2015-05-12
4217 SEVERE STORMS, TORNADOES, FLOODING, LANDSLIDES, AND MUDSLIDES DR Flood 2015-05-01
Show 28 earlier declaration records
DR# Title Type Incident Date
4196 SEVERE STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES DR Severe Storm 2014-09-30
4057 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS AND FLOODING DR Severe Storm 2012-03-06
1976 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2011-05-04
1818 SEVERE WINTER STORM AND FLOODING DR Severe Ice Storm 2009-02-05
3302 SEVERE WINTER STORM EM Severe Ice Storm 2009-01-28
1703 SEVERE STORMS, FLOODING, MUDSLIDES, AND ROCKSLIDES DR Severe Storm 2007-05-25
3231 HURRICANE KATRINA EM Hurricane 2005-09-10
1523 SEVERE STORMS, TORNADOES, FLOODING, AND MUDSLIDES DR Severe Storm 2004-06-10
1475 SEVERE STORMS, FLOODING, MUD AND ROCK SLIDES, AND TORNADOES DR Severe Storm 2003-07-02
1454 SEVERE WINTER ICE AND SNOW STORMS, HEAVY RAIN, FLOODING, TORNADOES, AND MUD AND DR Severe Storm 2003-03-14
1407 SEVERE STORMS AND FLOODING DR Severe Storm 2002-04-04
2386 KY - EASTERN FIRE COMPLEX - 11/02/2001 FM Fire 2001-11-02
1388 SEVERE STORMS AND FLOODING DR Severe Storm 2001-08-15
2350 KY - EASTERN DISTRICT FIRE COMPLEX - 11/03/00 FM Fire 2000-11-04
1320 SEVERE STORMS AND FLOODING DR Severe Storm 2000-02-28
1216 SEVERE STORMS, TORNADOES,AND FLOODING DR Severe Storm 1998-04-29
1207 SEVERE WINTER STORM DR Severe Storm 1998-03-03
1163 SEVERE STORM, FLOODING, AND TORNADOES DR Severe Storm 1997-03-04
1089 BLIZZARD OF 96 DR Snowstorm 1996-01-13
1055 TORNADOES, SEVERE WINDS, HAIL DR Tornado 1995-06-13
1018 SEVERE WEATHER, FREEZING RAIN, SLEET, SNW DR Snowstorm 1994-03-16
3104 SEVERE SNOWFALL & WINTER STORM EM Snowstorm 1993-03-16
893 SEVERE STORMS & FLOODING DR Flood 1991-01-29
821 SEVERE STORMS & FLOODING DR Flood 1989-02-24
705 HIGH WINDS, TORNADOES & FLOODING DR Severe Storm 1984-05-15
568 SEVERE STORMS & FLOODING DR Flood 1978-12-12
529 SEVERE STORMS & FLOODING DR Flood 1977-04-06
226 SEVERE STORMS & FLOODING DR Flood 1967-03-27

Storm Events in Kentucky

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

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 6,702 9 56 $55.2M
Flash Flood 1,757 65 16 $42.6M
Flood 1,646 31 6 $37.1M
Hail 1,534 1 0 $4.7M
Winter Weather 1,079 14 54 $655.0K

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

NFIP Flood Insurance Claims

Total Claims

309

Total Paid

$5.2M

Avg Per Claim

$17.0K

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

FEMA National Risk Index

Overall Risk

Relatively Low

Score: 71.1/100

Expected Annual Loss

Relatively Low

$20.5M/year

Social Vulnerability

Very High

Community Resilience

Very Low

Hazard Risk Breakdown

Landslide Relatively Moderate
Riverine Flooding Relatively Moderate
Wildfire Relatively Low
Winter Weather Relatively Moderate
Heat Wave Relatively Low
Hurricane Very Low
Lightning Relatively Low
Earthquake Very Low
Hail Relatively Low
Cold Wave Relatively Low
Ice Storm Relatively Low
Strong Wind Relatively Low
Tornado Relatively Low
Avalanche Very Low
Drought No Rating

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 Johnson County: the model and the federal record do NOT point at the same hazard. Landslide carries the highest modeled rating (Relatively Moderate), 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

Johnson County's closest FEMA peer: Tangipahoa Parish, LA

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

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Johnson 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

Johnson County's NFIP claims file (309 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 Johnson County?
The most common disaster type in Johnson County is Severe Storm, with 23 declarations. Other disaster types include Flood (11), Severe Ice Storm (3), Snowstorm (3).
How does Johnson County's FEMA declaration record compare with the Kentucky average?
FEMA lists 48 declaration records for Johnson County. That is 71% above the Kentucky county mean of 28.1. Its count is also 132% 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 Johnson County received?
Johnson County has received 39 major disaster declarations, representing 81% of all 48 disaster declarations.
How many flood insurance claims has Johnson County filed?
Johnson County has 309 National Flood Insurance Program (NFIP) claims totaling $5.2M in payments, with an average of $17.0K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Johnson County?
No. In Johnson County, Landslide has the highest National Risk Index rating (Relatively Moderate), while Riverine Flooding leads Expected Annual Loss at about $18.3M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Johnson County?
The most active year for disaster declarations in Johnson County was 2025, with 5 declarations. The county has FEMA disaster data spanning 1967 to 2026.
What is the FEMA National Risk Index score for Johnson County?
According to the FEMA National Risk Index, Johnson County, Kentucky has an overall risk score of 71.1 out of 100 (Relatively Low). On social vulnerability the county rates Very High; on community resilience, Very Low. The Expected Annual Loss (EAL) score is Relatively Low, representing $20.5M in annualized losses.
Which natural hazard poses the greatest risk to Johnson County?
The top hazard flagged by FEMA's NRI for Johnson County as of the latest release is Landslide (risk rating: Relatively Moderate). Other significant hazards include Riverine Flooding (Relatively Moderate) and Wildfire (Relatively Low). FEMA's modeled event frequency puts landslide here at roughly once every 1 years. 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 Johnson County · vintage 2026-08-25 · Methodology · Kentucky profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events