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Maine · FEMA + NOAA + National Risk Index

Knox County, ME

31 FEMA disaster declarations (1970-2024), with a FEMA National Risk Index rating of Very Low. Most common hazard: Severe Storm.

31
FEMA declarations
24
Major disasters
29
NRI risk · Very Low
Severe Storm
Top hazard

The verdict

Two federal records point in the busier direction for Knox County. Its 31 FEMA declarations are 5% above the Maine county mean and exceed the count for 88% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it safer than 29%, based on modeled expected annual loss, social vulnerability, and community resilience.

Safer than 29%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
31
FEMA declarations vs 21 national county avg
92
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 23013 · Knox County 31 declarations · rank 351/3,266

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

  • DECL-HEAVY 31
  • MAJOR-MID 77%
  • RANK-MID #351
  • PHOTO-FINISH Galveston
  • NRI-LOW Very Low
  • ACT-HIGH High
  • TYPE-LEAD Severe Storm
  • VS-ST-ABOVE +5%

Nearest declaration peer: Galveston, TX (0 declaration gap)

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

Knox County among high-volume declaration counties

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

declarations

What this shows Knox County carries 31 FEMA declaration records, ranked 351 of 3,266 counties in this registry.

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

Where Knox County ranks in the national declaration registry

Knox County vs. high-volume counties in this registry

FEMA disaster declarations, all-time · Knox County

31 Top 12% higher than 88% 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

0/100100/100Maine avg57/10028.6/100
FEMA National Risk Index composite score vs. the Maine county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Knox County is led by Hurricane (about $3.8M Expected Annual Loss, Historical Loss Ratio Relatively Moderate), while Winter Weather carries the highest National Risk Index rating (Relatively High). 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?

Reading the federal records together

The NFIP claims register shows a middle-volume loss record here: 92 paid claims, totaling $1.8M. PlainHazard uses 50-499 claims for this descriptive band; FEMA does not publish it as a safety or coverage category. The $19.8K 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. Knox County's 31 federal records stand 5% above the Maine county mean of 29.4. 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's FEMA National Risk Index composite lands at 28.6/100 (Very Low), a modest reading against the rest of the country. Expected Annual Loss is rated Very Low (roughly $11.7M in annualized losses), tempered or compounded by a Very Low social-vulnerability score and Very High community-resilience score. Of the 18 hazards FEMA models, Winter Weather stands out as the sharpest exposure here, rated Relatively High. FEMA's modeled frequency puts that hazard at an average of 16 times per year here, based on 307 historical events on record.

72 /100

Historical Activity Index

High historical activity

Knox County, ME · 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
22/30

31 OpenFEMA declarations, full ingest window (1.5x national county average)

County Disaster Density High
13/25

31 declarations (1.1x state county average of 29)

Major Disaster Share Very High
19/25

24 of 31 declarations are major disasters (77%)

Hazard Diversity Very High
18/20

7 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 48, Hurricane 48, Tornado 8, Wildfire 8, Drought 25, Heat Wave 8, Winter Storm 70. The simple mean of these eight displayed scores is 28 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 28 8-hazard mean
Knox County NRI risk profile FIPS 23013 · displayed-hazard mean 28/100
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

31

High volume

Major Disaster share

77%

Mostly major

NRI risk score

29

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
Winter Weather Relatively High an average of 16 times per year
Ice Storm Relatively High an average of 1.3 times per year
Landslide Relatively Low roughly once every 12 years
Hurricane Relatively Moderate roughly once every 10 years
Coastal Flooding Relatively Moderate an average of 8.4 times per year
Lightning Relatively Low an average of 14 times per year
Earthquake Very Low roughly once every 743 years
Strong Wind Relatively Low roughly once every 2 years
Drought Relatively Low 2.2 modeled event-days per year
Avalanche Very Low roughly once every 100 years
Cold Wave Relatively Low an average of 1.7 times per year
Riverine Flooding Very Low roughly once every 1 years
Hail Very Low roughly once every 1 years
Wildfire Very Low roughly once every 84,327 years
Tornado Very Low roughly once every 41 years
Heat Wave Very Low 0.7 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 12
Flood 8
Hurricane 3
Coastal Storm 2
Biological 2
Snowstorm 2
Fishing Losses 2

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 - 24 77.4%

of all 31 declarations

Emergency - 7 22.6%

of all 31 declarations

FEMA Declarations Timeline

Year Declarations
2024 1
2023 3
2022 1
2020 2
2018 1
2013 1
2010 1
2009 3
2008 1
2007 2
2005 3
1998 1
1996 1
1993 1
1992 2
Show 6 earlier declaration years
1991 1
1987 1
1980 1
1974 1
1972 2
1970 1

Disaster Declarations

How the 31 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 31 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4764 SEVERE STORMS AND FLOODING DR Severe Storm 2024-03-20
3598 HURRICANE LEE EM Hurricane 2023-09-14
4719 SEVERE STORM AND FLOODING DR Flood 2023-07-06
4696 SEVERE STORM AND FLOODING DR Severe Storm 2023-03-22
4647 SEVERE STORM AND FLOODING DR Coastal Storm 2022-03-15
4522 COVID-19 PANDEMIC DR Biological 2020-04-04
3444 COVID-19 EM Biological 2020-03-13
4354 SEVERE STORM AND FLOODING DR Severe Storm 2018-01-02
4108 SEVERE WINTER STORM, SNOWSTORM, AND FLOODING DR Severe Storm 2013-03-25
1891 SEVERE WINTER STORM DR Severe Storm 2010-03-25
1852 SEVERE STORMS, FLOODING, AND LANDSLIDES DR Severe Storm 2009-07-30
1815 SEVERE WINTER STORM AND FLOODING DR Severe Storm 2009-01-09
3298 SEVERE WINTER STORM EM Severe Storm 2008-12-15
1755 SEVERE STORMS AND FLOODING DR Flood 2008-05-09
1693 SEVERE STORMS AND INLAND AND COASTAL FLOODING DR Severe Storm 2007-04-25
1691 FLOODING DR Flood 2007-04-20
3256 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-19
1591 SEVERE STORMS, FLOODING, SNOW MELT, AND ICE JAMS DR Severe Storm 2005-06-29
3206 RECORD AND/OR NEAR RECORD SNOW EM Snowstorm 2005-03-14
1198 SEVERE ICE STORMS, RAINS AND HIGH WINDS DR Severe Storm 1998-01-13
Show 11 earlier declaration records
DR# Title Type Incident Date
1114 SEVERE STORMS, MUDSLIDES, FLOODING DR Severe Storm 1996-05-20
3099 BLIZZARDS, SEVERE WINDS & SNOWFALL, COASTAL STORM EM Snowstorm 1993-03-15
940 HEAVY RAINS, ICE JAMS & FLOODING DR Flood 1992-03-27
921 COASTAL STORM DR Coastal Storm 1991-11-07
915 HURRICANE BOB & FLOODING DR Hurricane 1991-08-28
788 SEVERE STORMS & FLOODING DR Flood 1987-04-09
3082 RED TIDE-TOXIC ALGAE EM Fishing Losses 1980-09-20
410 SEVERE STORMS & FLOODING DR Flood 1974-01-18
356 TOXIC ALGAE IN COASTAL WATERS DR Fishing Losses 1972-09-28
326 SEVERE STORMS & FLOODING DR Flood 1972-03-07
284 SEVERE STORMS, ICE JAMS & FLOODING DR Flood 1970-02-27

Storm Events in Maine

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

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 972 3 0 $821.0K
Heavy Snow 817 0 0 $0
Winter Storm 672 0 0 $0
Winter Weather 540 0 52 $0
High Wind 261 3 0 $40.0K

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

NFIP Flood Insurance Claims

Total Claims

92

Total Paid

$1.8M

Avg Per Claim

$19.8K

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 28.6/100

Expected Annual Loss

Very Low

$11.7M/year

Social Vulnerability

Very Low

Community Resilience

Very High

Hazard Risk Breakdown

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

Winter Weather in the model means the accumulation of snow and cold that disrupts rather than destroys: road closures, roof loads, burst pipes and lost heating. Its costs land heavily on transport and on households least able to absorb an interruption.

Worth noting for Knox County: the model and the federal record do NOT point at the same hazard. Winter Weather carries the highest modeled rating (Relatively High), 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: Jefferson County, TX

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

Understanding disaster data

Knox County's NFIP claims file (92 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 Knox County?
The most common disaster type in Knox County is Severe Storm, with 12 declarations. Other disaster types include Flood (8), Hurricane (3), Coastal Storm (2).
How does Knox County's FEMA declaration record compare with the Maine average?
FEMA lists 31 declaration records for Knox County. That is 5% above the Maine county mean of 29.4. Its count is also 50% 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 Knox County received?
Knox County has received 24 major disaster declarations, representing 77% of all 31 disaster declarations.
How many flood insurance claims has Knox County filed?
Knox County has 92 National Flood Insurance Program (NFIP) claims totaling $1.8M in payments, with an average of $19.8K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Knox County?
No. In Knox County, Winter Weather has the highest National Risk Index rating (Relatively High), while Hurricane leads Expected Annual Loss at about $3.8M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Knox County?
The most active year for disaster declarations in Knox County was 2005, with 3 declarations. The county has FEMA disaster data spanning 1970 to 2024.
What is the FEMA National Risk Index score for Knox County?
According to the FEMA National Risk Index, Knox County, Maine has an overall risk score of 28.6 out of 100 (Very Low). Social vulnerability here rates Very Low, while community resilience comes in at Very High. The Expected Annual Loss (EAL) score is Very Low, representing $11.7M in annualized losses.
Which natural hazard poses the greatest risk to Knox County?
FEMA's NRI data points to Knox County as of the latest release is Winter Weather (risk rating: Relatively High). Other significant hazards include Ice Storm (Relatively High) and Landslide (Relatively Low). FEMA's modeled event frequency puts winter weather here at an average of 16 times per year, drawn from 307 historical events on record. 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 Knox County · vintage 2026-08-25 · Methodology · Maine profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events