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Idaho · FEMA + NOAA + National Risk Index

Teton County, ID

3 FEMA disaster declarations (2005-2020), with a FEMA National Risk Index rating of Very Low. Most common hazard: Biological.

3
FEMA declarations
1
Major disasters
29
NRI risk · Very Low
Biological
Top hazard

The verdict

The declaration register is comparatively quiet for Teton County. Its 3 federal records sit 64% below the Idaho county mean and above the count for 1% of counties nationally. That historical total does not set the National Risk Index: FEMA's separate loss-and-vulnerability model ranks the county safer than 29%.

Safer than 29%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
3
FEMA declarations vs 21 national county avg
4
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 16081 · Teton County 3 declarations · rank 3237/3,266

DECL-LIGHT · MAJOR-LIGHT · RANK-LOWER · PHOTO-FINISH · NRI-LOW · ACT-LOW · TYPE-LEAD · VS-ST-LOW

  • DECL-LIGHT 3
  • MAJOR-LIGHT 33%
  • RANK-LOWER #3,237
  • PHOTO-FINISH Skagway
  • NRI-LOW Very Low
  • ACT-LOW Low
  • TYPE-LEAD Biological
  • VS-ST-LOW -64%

Nearest declaration peer: Skagway, AK (0 declaration gap)

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

Teton County among counties with fewer federal records

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

declarations

What this shows Teton County carries 3 FEMA declaration records, ranked 3237 of 3,266 counties in this registry.

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

Teton County versus quieter counties in this dataset

Teton County among lower-declaration counties nationally

FEMA disaster declarations, all-time · Teton County

3 1st percentile higher than 1% 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

Teton County's FEMA Risk Index score

0/100100/100Idaho avg39/10029.5/100
FEMA National Risk Index composite score vs. the Idaho county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Teton County is led by Riverine Flooding (about $4.1M Expected Annual Loss, Historical Loss Ratio Relatively Moderate), while Avalanche 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 Teton County's hazard record show?

FEMA National Risk Index

This county's FEMA National Risk Index composite lands at 29.5/100 (Very Low), a modest reading against the rest of the country. Expected Annual Loss is rated Very Low (roughly $12.1M in annualized losses), tempered or compounded by a Very Low social-vulnerability score and Relatively Low community-resilience score. Of the 18 hazards FEMA models, Avalanche stands out as the sharpest exposure here, rated Relatively High. FEMA's modeled frequency puts that hazard at roughly once every 6 years here, based on 5 historical events on record.

Reading the federal records together

This county has a small entry in FEMA's NFIP paid-claims table: 4 claims and $25.5K 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.

Start with the state benchmark: a Idaho county averages 8.3 federal declaration records, while Teton County has 3. The gap is 64% below that mean. Fewer entries indicate a quieter history of recorded federal actions, not immunity from a hazard and not a prediction about what happens next.

20 /100

Historical Activity Index

Low historical activity

Teton County, ID · 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) Low
2/30

3 OpenFEMA declarations, full ingest window (0.1x national county average)

County Disaster Density Low
5/25

3 declarations (0.4x state county average of 8)

Major Disaster Share Moderate
8/25

1 of 3 declarations are major disasters (33%)

Hazard Diversity Moderate
5/20

2 different disaster types declared in Teton County

FEMA NRI 8-hazard radar - Teton County

Teton County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 25, Flood 8, Hurricane 0, Tornado 8, Wildfire 48, Drought 8, Heat Wave 8, Winter Storm 48. The simple mean of these eight displayed scores is 19 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 19 8-hazard mean
Teton County NRI risk profile FIPS 16081 · displayed-hazard mean 19/100
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

3

Low volume

Major Disaster share

33%

Mixed major share

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 Teton 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
Avalanche Relatively High roughly once every 6 years
Wildfire Relatively Moderate roughly once every 345 years
Earthquake Relatively Low roughly once every 63 years
Lightning Relatively Moderate an average of 41 times per year
Landslide Relatively Low roughly once every 2 years
Winter Weather Relatively Moderate an average of 30 times per year
Volcanic Activity Very Low roughly once every 1,667 years
Cold Wave Relatively Low an average of 1.9 times per year
Riverine Flooding Very Low roughly once every 6 years
Hail Very Low roughly once every 3 years
Drought Very Low 29 modeled event-days per year
Tornado Very Low roughly once every 41 years
Heat Wave Very Low 0.2 modeled event-days per year
Ice Storm Very Low roughly once every 67 years
Strong Wind Very Low roughly once every 2 years

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

Disaster Types

Biological 2
Hurricane 1

What Biological declarations mean here

Biological is the most frequent declaration type on Teton County's record, 67% of its declarations. In practice this category is dominated by the COVID-19 declarations of 2020, which were issued across every US state and territory rather than in response to any local hazard event.

This has a direct consequence for how Teton County's number should be read. Because those declarations reached essentially every county in the country, they raise every county's total by a similar amount and tell you nothing about local hazard exposure. A county whose record is led by Biological declarations is, in most cases, a county with a genuinely quiet weather-hazard history, the pandemic records are simply the largest thing in an otherwise short list.

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).

Emergency - 2 66.7%

of all 3 declarations

Major Disaster - 1 33.3%

of all 3 declarations

FEMA Declarations Timeline

Year Declarations
2020 2
2005 1

Disaster Declarations

How the 3 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 3 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4534 COVID-19 PANDEMIC DR Biological 2020-04-09
3467 COVID-19 EM Biological 2020-03-13
3244 HURRICANE KATRINA EM Hurricane 2005-09-13

Storm Events in Idaho

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

Storm Type Events Fatalities Injuries Property Damage
Heavy Snow 1,495 1 13 $100.9M
Thunderstorm Wind 1,087 9 26 $3.6M
Winter Storm 492 4 15 $1.0M
High Wind 396 4 6 $10.6M
Winter Weather 297 10 15 $1.7M

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

NFIP Flood Insurance Claims

Total Claims

4

Total Paid

$25.5K

Avg Per Claim

$6.4K

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 29.5/100

Expected Annual Loss

Very Low

$12.1M/year

Social Vulnerability

Very Low

Community Resilience

Relatively Low

Hazard Risk Breakdown

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

Avalanche is the most geographically restricted hazard in the model, limited to steep terrain holding seasonal snow. Its exposure concentrates on mountain roads, rail corridors and backcountry recreation rather than on the built environment generally.

Worth noting for Teton County: the model and the federal record do NOT point at the same hazard. Avalanche carries the highest modeled rating (Relatively High), while the county's declaration history is led by Biological. 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

Teton County's closest FEMA peer: Juneau City and Borough, AK

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

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Teton 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

FEMA's National Risk Index flags Avalanche as the top modeled exposure here (Relatively High); the guide explains how that model differs from declaration counts.

More PlainHazard guides

Frequently Asked Questions

What is the most common disaster type in Teton County?
The most common disaster type in Teton County is Biological, with 2 declarations. Other disaster types include Hurricane (1).
How does Teton County's FEMA declaration record compare with the Idaho average?
The typical Idaho county has 8.3 FEMA declaration records; Teton County has 3, or 64% fewer. Against the national county mean of 20.7, this county's total is 86% lower. The comparison is historical and says nothing about the probability of a future event.
How many major FEMA disaster declarations has Teton County received?
Teton County has received 1 major disaster declaration, representing 33% of all 3 disaster declarations.
How many flood insurance claims has Teton County filed?
Teton County has 4 National Flood Insurance Program (NFIP) claims totaling $25.5K in payments, with an average of $6.4K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Teton County?
No. In Teton County, Avalanche has the highest National Risk Index rating (Relatively High), while Riverine Flooding leads Expected Annual Loss at about $4.1M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Teton County?
The most active year for disaster declarations in Teton County was 2020, with 2 declarations. The county has FEMA disaster data spanning 2005 to 2020.
What is the FEMA National Risk Index score for Teton County?
According to the FEMA National Risk Index, Teton County, Idaho has an overall risk score of 29.5 out of 100 (Very Low). Social vulnerability here rates Very Low, while community resilience comes in at Relatively Low. The Expected Annual Loss (EAL) score is Very Low, representing $12.1M in annualized losses.
Which natural hazard poses the greatest risk to Teton County?
FEMA's NRI data points to Teton County as of the latest release is Avalanche (risk rating: Relatively High). Other significant hazards include Wildfire (Relatively Moderate) and Earthquake (Relatively Low). FEMA's modeled event frequency puts avalanche here at roughly once every 6 years, drawn from 5 historical events on record. 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 Teton County · vintage 2026-08-25 · Methodology · Idaho profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events