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Nebraska · FEMA + NOAA + National Risk Index

Knox County, NE

18 FEMA disaster declarations (1967-2022), with a FEMA National Risk Index rating of Very Low. Most common hazard: Severe Storm.

18
FEMA declarations
15
Major disasters
30
NRI risk · Very Low
Severe Storm
Top hazard

The verdict

Two federal records point in the busier direction for Knox County. Its 18 FEMA declarations are 7% above the Nebraska county mean and exceed the count for 37% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it safer than 30%, based on modeled expected annual loss, social vulnerability, and community resilience.

Safer than 30%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
18
FEMA declarations vs 21 national county avg
26
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 31107 · Knox County 18 declarations · rank 1944/3,266

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

  • DECL-MID 18
  • MAJOR-HEAVY 83%
  • RANK-LOWER #1,944
  • PHOTO-FINISH Monroe
  • NRI-LOW Very Low
  • ACT-HIGH High
  • TYPE-LEAD Severe Storm
  • VS-ST-ABOVE +7%

Nearest declaration peer: Monroe, TN (0 declaration gap)

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

Knox County in the declaration-count neighbourhood

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

declarations

What this shows Knox County carries 18 FEMA declaration records, ranked 1944 of 3,266 counties in this registry.

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

How Knox County's FEMA declaration count compares nationally

Knox County vs. all counties in this dataset

FEMA disaster declarations, all-time · Knox County

18 37th percentile higher than 37% 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

Knox County's FEMA Risk Index score

0/100100/100Nebraska avg26/10029.7/100
FEMA National Risk Index composite score vs. the Nebraska county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Knox County is led by Riverine Flooding (about $3.6M Expected Annual Loss, Historical Loss Ratio Relatively Moderate), while Drought 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 Knox County's hazard record show?

FEMA National Risk Index

This county's FEMA National Risk Index composite lands at 29.7/100 (Very Low), a modest reading against the rest of the country. Expected Annual Loss is rated Very Low (roughly $9.6M in annualized losses), tempered or compounded by a Relatively Low social-vulnerability score and Relatively Moderate community-resilience score. Among the 18 modeled hazards, Drought carries the county's highest rating, a mid-range Relatively Moderate. FEMA's modeled frequency puts that hazard at 32 modeled event-days per year here, based on 959 historical events on record.

Reading the federal records together

This county has a small entry in FEMA's NFIP paid-claims table: 26 claims and $804.6K 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. Knox County's 18 federal records stand 7% 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.

60 /100

Historical Activity Index

High historical activity

Knox 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) Moderate
13/30

18 OpenFEMA declarations, full ingest window (0.9x national county average)

County Disaster Density High
13/25

18 declarations (1.1x state county average of 17)

Major Disaster Share Very High
21/25

15 of 18 declarations are major disasters (83%)

Hazard Diversity High
13/20

5 different disaster types declared in Knox County

FEMA NRI 8-hazard radar - Knox County

Knox 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 48, Heat Wave 8, Winter Storm 48. The simple mean of these eight displayed scores is 21 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 21 8-hazard mean
Knox County NRI risk profile FIPS 31107 · displayed-hazard mean 21/100
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

18

Below median

Major Disaster share

83%

Mostly major

NRI risk score

30

Very Low

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

How often does each hazard strike Knox 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
Drought Relatively Moderate 32 modeled event-days per year
Wildfire Relatively Low roughly once every 784 years
Hail Relatively Moderate an average of 5.6 times per year
Winter Weather Relatively Moderate an average of 16 times per year
Ice Storm Relatively Moderate roughly once every 1 years
Cold Wave Relatively Low an average of 6.5 times per year
Tornado Relatively Low roughly once every 1 years
Landslide Very Low roughly once every 2 years
Strong Wind Relatively Low an average of 2.8 times per year
Riverine Flooding Very Low an average of 1.1 times per year
Heat Wave Very Low 4.9 modeled event-days per year
Lightning Relatively Low an average of 39 times per year
Earthquake Very Low roughly once every 1,812 years

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

Disaster Types

Severe Storm 7
Flood 7
Biological 2
Snowstorm 1
Hurricane 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on Knox County's record, 39% 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 - 15 83.3%

of all 18 declarations

Emergency - 3 16.7%

of all 18 declarations

FEMA Declarations Timeline

Year Declarations
2022 1
2020 2
2019 1
2018 1
2011 2
2010 2
2007 2
2006 1
2005 1
2003 1
1978 1
1971 2
1967 1

Disaster Declarations

How the 18 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 18 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4662 SEVERE STORMS AND STRAIGHT-LINE WINDS DR Severe Storm 2022-07-27
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
4375 SEVERE WINTER STORM AND STRAIGHT-LINE WINDS DR Snowstorm 2018-06-29
4013 FLOODING DR Flood 2011-08-12
3323 FLOODING EM Flood 2011-06-18
1924 SEVERE STORMS AND FLOODING DR Severe Storm 2010-07-15
1878 SEVERE WINTER STORMS AND SNOWSTORM DR Severe Storm 2010-02-25
1706 SEVERE STORMS, FLOODING, AND TORNADOES DR Severe Storm 2007-06-06
1674 SEVERE WINTER STORMS DR Severe Storm 2007-01-07
1627 SEVERE WINTER STORM DR Severe Storm 2006-01-26
3245 HURRICANE KATRINA EVACUEES EM Hurricane 2005-09-13
1480 SEVERE STORMS AND TORNADOES DR Severe Storm 2003-07-21
552 STORMS, ICE JAMS, SNOWMELT & FLOODING DR Flood 1978-03-24
308 FLOODS DR Flood 1971-07-07
303 FLOODS DR Flood 1971-02-23
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 Knox 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

26

Total Paid

$804.6K

Avg Per Claim

$30.9K

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 29.7/100

Expected Annual Loss

Very Low

$9.6M/year

Social Vulnerability

Relatively Low

Community Resilience

Relatively Moderate

Hazard Risk Breakdown

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

Drought is the slowest of the modeled hazards and the least visible: it does its damage to agriculture, water supply and soil over seasons rather than hours, so it rarely produces the kind of single-day damage that drives a disaster declaration. FEMA scores it in event-days per year rather than discrete events for exactly that reason.

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

Knox County's closest FEMA peer: McLeod County, MN

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

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Knox 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 18 FEMA declarations, Knox 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 Knox County?
The most common disaster type in Knox County is Severe Storm, with 7 declarations. Other disaster types include Flood (7), Biological (2), Snowstorm (1).
How does Knox County's FEMA declaration record compare with the Nebraska average?
FEMA lists 18 declaration records for Knox County. That is 7% above the Nebraska county mean of 16.8. Its count is also 13% below 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 Knox County received?
Knox County has received 15 major disaster declarations, representing 83% of all 18 disaster declarations.
How many flood insurance claims has Knox County filed?
Knox County has 26 National Flood Insurance Program (NFIP) claims totaling $804.6K in payments, with an average of $30.9K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Knox County?
No. In Knox County, Drought has the highest National Risk Index rating (Relatively Moderate), while Riverine Flooding leads Expected Annual Loss at about $3.6M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Knox County?
The most active year for disaster declarations in Knox County was 1971, with 2 declarations. The county has FEMA disaster data spanning 1967 to 2022.
What is the FEMA National Risk Index score for Knox County?
According to the FEMA National Risk Index, Knox County, Nebraska has an overall risk score of 29.7 out of 100 (Very Low). On social vulnerability the county rates Relatively Low; on community resilience, Relatively Moderate. The Expected Annual Loss (EAL) score is Very Low, representing $9.6M in annualized losses.
Which natural hazard poses the greatest risk to Knox County?
Based on FEMA NRI data, the highest-risk natural hazard in Knox County as of the latest release is Drought (risk rating: Relatively Moderate). Other significant hazards include Wildfire (Relatively Low) and Hail (Relatively Moderate). FEMA's modeled event frequency puts drought here at 32 modeled event-days per year, drawn from 959 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.

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