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Nebraska · FEMA + NOAA + National Risk Index

Johnson County, NE

22 FEMA disaster declarations (1967-2025), with a FEMA National Risk Index rating of Very Low. Most common hazard: Severe Storm.

22
FEMA declarations
20
Major disasters
5
NRI risk · Very Low
Severe Storm
Top hazard

The verdict

Two federal records point in the busier direction for Johnson County. Its 22 FEMA declarations are 31% above the Nebraska county mean and exceed the count for 57% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it safer than 5%, based on modeled expected annual loss, social vulnerability, and community resilience.

Safer than 5%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
22
FEMA declarations vs 21 national county avg
3
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 31097 · Johnson County 22 declarations · rank 1249/3,266

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

  • DECL-HEAVY 22
  • MAJOR-HEAVY 91%
  • RANK-LOWER #1,249
  • PHOTO-FINISH Hardy
  • NRI-LOW Very Low
  • ACT-HIGH High
  • TYPE-LEAD Severe Storm
  • VS-ST-ABOVE +31%

Nearest declaration peer: Hardy, WV (0 declaration gap)

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

Johnson County in the declaration-count neighbourhood

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

declarations

What this shows Johnson County carries 22 FEMA declaration records, ranked 1249 of 3,266 counties in this registry.

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

How Johnson County's FEMA declaration count compares nationally

Johnson County vs. all counties in this dataset

FEMA disaster declarations, all-time · Johnson County

22 Top 43% higher than 57% 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

0/100100/100Nebraska avg26/1004.6/100
FEMA National Risk Index composite score vs. the Nebraska county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Johnson County is led by Riverine Flooding (about $1.8M Expected Annual Loss, Historical Loss Ratio Relatively Moderate), while Wildfire 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 Johnson County's hazard record show?

FEMA National Risk Index

This county sits at the very bottom of FEMA's National Risk Index nationally, a composite score of 4.6/100 (rated Very Low). Projected losses are minimal, Expected Annual Loss reads Very Low (roughly $4.3M in annualized losses), and the county's exposure is shaped by a Very Low social-vulnerability profile and Relatively High community resilience. Even the county's top-rated hazard, Wildfire, 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 426 years here.

Reading the federal records together

This county has a small entry in FEMA's NFIP paid-claims table: 3 claims and $2.0K 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. Johnson County's 22 federal records stand 31% above the Nebraska county mean of 16.8. 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.

70 /100

Historical Activity Index

High historical activity

Johnson County, NE · 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
16/30

22 OpenFEMA declarations, full ingest window (1.1x national county average)

County Disaster Density High
16/25

22 declarations (1.3x state county average of 17)

Major Disaster Share Very High
23/25

20 of 22 declarations are major disasters (91%)

Hazard Diversity Very High
15/20

6 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 8, Hurricane 0, Tornado 25, Wildfire 25, Drought 25, Heat Wave 8, Winter Storm 25. The simple mean of these eight displayed scores is 16 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 16 8-hazard mean
Johnson County NRI risk profile FIPS 31097 · displayed-hazard mean 16/100
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

22

Above median

Major Disaster share

91%

Mostly major

NRI risk score

5

Very 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
Wildfire Relatively Low roughly once every 426 years
Hail Relatively Low an average of 7.6 times per year
Drought Relatively Low 13 modeled event-days per year
Ice Storm Relatively Low roughly once every 1 years
Winter Weather Relatively Low an average of 12 times per year
Heat Wave Very Low 8.1 modeled event-days per year
Landslide Very Low roughly once every 12 years
Tornado Relatively Low roughly once every 3 years
Strong Wind Very Low an average of 4.3 times per year
Cold Wave Very Low an average of 3.4 times per year
Lightning Very Low an average of 48 times per year
Riverine Flooding Very Low roughly once every 3 years
Earthquake Very Low roughly once every 1,795 years

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

Disaster Types

Severe Storm 11
Flood 6
Biological 2
Winter Storm 1
Severe Ice Storm 1
Hurricane 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on Johnson 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 90.9%

of all 22 declarations

Emergency - 2 9.1%

of all 22 declarations

FEMA Declarations Timeline

Year Declarations
2025 1
2022 1
2020 2
2019 1
2015 1
2011 1
2010 3
2008 3
2007 1
2005 1
2004 1
2001 1
1996 1
1993 1
1992 1
Show 2 earlier declaration years
1974 1
1967 1

Disaster Declarations

How the 22 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 22 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4868 SEVERE WINTER STORM AND STRAIGHT-LINE WINDS DR Winter Storm 2025-05-21
4641 SEVERE STORMS, STRAIGHT-LINE WINDS, AND TORNADOES DR Severe Storm 2022-02-23
4521 COVID-19 PANDEMIC DR Biological 2020-04-04
3483 COVID-19 EM Biological 2020-03-13
4420 SEVERE WINTER STORM, STRAIGHT-LINE WINDS, AND FLOODING DR Flood 2019-03-21
4225 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING DR Severe Storm 2015-06-25
1945 SEVERE STORMS, FLOODING, TORNADO, AND STRAIGHT-LIN DR Severe Storm 2010-10-21
1902 SEVERE STORMS, ICE JAMS, AND FLOODING DR Flood 2010-04-21
1878 SEVERE WINTER STORMS AND SNOWSTORM DR Severe Storm 2010-02-25
1864 SEVERE WINTER STORM DR Severe Storm 2009-12-16
1770 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2008-06-20
1765 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2008-05-30
1739 SEVERE WINTER STORM DR Severe Ice Storm 2008-01-11
1706 SEVERE STORMS, FLOODING, AND TORNADOES DR Severe Storm 2007-06-06
3245 HURRICANE KATRINA EVACUEES EM Hurricane 2005-09-13
1517 SEVERE STORMS, TORNADOES AND FLOODING DR Severe Storm 2004-05-25
1373 SEVERE WINTER STORMS, FLOODING AND TORNADOES DR Severe Storm 2001-05-16
1123 SEVERE STORMS AND TORNADOES DR Severe Storm 1996-06-25
998 SEVERE STORMS AND FLOODING DR Flood 1993-07-19
954 SEVERE STORMS & FLOODING DR Flood 1992-08-19
Show 2 earlier declaration records
DR# Title Type Incident Date
406 SEVERE STORMS & FLOODING DR Flood 1973-10-20
228 SEVERE STORMS & FLOODING DR Flood 1967-07-18

Storm Events in Nebraska

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

Storm Type Events Fatalities Injuries Property Damage
Hail 6,079 0 2 $237.7M
Thunderstorm Wind 4,757 3 19 $228.1M
Drought 1,658 0 0 $0
High Wind 1,647 1 1 $22.1M
Winter Storm 1,155 0 2 $335.0K

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

NFIP Flood Insurance Claims

Total Claims

3

Total Paid

$2.0K

Avg Per Claim

$657

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 4.6/100

Expected Annual Loss

Very Low

$4.3M/year

Social Vulnerability

Very Low

Community Resilience

Relatively High

Hazard Risk Breakdown

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

Wildfire risk in the model reflects fuel, terrain, weather and how much development sits in the wildland-urban interface. It is one of the few hazards where the exposure is materially changed by land management and building choices, not only by where the county happens to be.

Worth noting for Johnson County: the model and the federal record do NOT point at the same hazard. Wildfire 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

Johnson County's closest FEMA peer: Clinton County, IA

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

Most disaster-prone counties

With 22 FEMA declarations, Johnson 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 Johnson County?
The most common disaster type in Johnson County is Severe Storm, with 11 declarations. Other disaster types include Flood (6), Biological (2), Winter Storm (1).
How does Johnson County's FEMA declaration record compare with the Nebraska average?
FEMA lists 22 declaration records for Johnson County. That is 31% above the Nebraska county mean of 16.8. Its count is also 6% 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 20 major disaster declarations, representing 91% of all 22 disaster declarations.
How many flood insurance claims has Johnson County filed?
Johnson County has 3 National Flood Insurance Program (NFIP) claims totaling $2.0K in payments, with an average of $657 per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Johnson County?
No. In Johnson County, Wildfire has the highest National Risk Index rating (Relatively Low), while Riverine Flooding leads Expected Annual Loss at about $1.8M. 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 2008, with 3 declarations. The county has FEMA disaster data spanning 1967 to 2025.
What is the FEMA National Risk Index score for Johnson County?
According to the FEMA National Risk Index, Johnson County, Nebraska has an overall risk score of 4.6 out of 100 (Very Low). Social vulnerability here rates Very Low, while community resilience comes in at Relatively High. The Expected Annual Loss (EAL) score is Very Low, representing $4.3M in annualized losses.
Which natural hazard poses the greatest risk to Johnson County?
FEMA's NRI data points to Johnson County as of the latest release is Wildfire (risk rating: Relatively Low). Other significant hazards include Hail (Relatively Low) and Drought (Relatively Low). FEMA's modeled event frequency puts wildfire here at roughly once every 426 years. FEMA derives these ratings from historical event frequency, the assets exposed, and the community's vulnerability profile.
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 · Nebraska profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events