FEMA Records
8
Low volume
Wyoming · FEMA + NOAA + National Risk Index
Natrona County, WY
8 FEMA disaster declarations (1978-2023), with a FEMA National Risk Index rating of Relatively Low. Most common hazard: Fire.
- 8
- FEMA declarations
- 3
- Major disasters
- 69
- NRI risk · Relatively Low
- Fire
- Top hazard
The verdict
FEMA records a middle-volume declaration history for Natrona County: 8 entries, 40% above its Wyoming county benchmark and ahead of 6% of counties nationally. The National Risk Index answers a different question. Its modeled loss, vulnerability, and resilience inputs place this county in the riskiest 31% of U.S. counties.
- Riskiest 31%
- of U.S. counties for FEMA National Risk Index score
- Relatively Low
- FEMA National Risk Index rating
- 8
- FEMA declarations vs 21 national county avg
- 57
- 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.
FEMA OpenFEMA declaration desk
County FIPS 56025 · Natrona County 8 declarations · rank 3022/3,266
DECL-LIGHT · MAJOR-LIGHT · RANK-LOWER · PHOTO-FINISH · NRI-LOW · ACT-MODERATE · TYPE-LEAD · VS-ST-ABOVE
- DECL-LIGHT 8
- MAJOR-LIGHT 38%
- RANK-LOWER #3,022
- PHOTO-FINISH Marion
- NRI-LOW 69
- ACT-MODERATE Moderate
- TYPE-LEAD Fire
- VS-ST-ABOVE +40%
Nearest declaration peer: Marion, IL (0 declaration gap)
FEMA Disaster Declarations Summaries v2 filing stamps for this county register. Read with this county → · Wyoming state profile
Natrona County among counties with fewer federal records
FEMA declaration records among Natrona County and nearest peers by total count
- Los Angeles · largest
Los Angeles · largest
88 declarations
- Kane · near 8
Kane · near
8 declarations
- Marion · near 8
Marion · near
8 declarations
- Mesa · near 8
Mesa · near
8 declarations
- Natrona · this county 8
Natrona · this county
8 declarations
- Ujelang · smallest 1
Ujelang · smallest
1 declarations
What this shows Natrona County carries 8 FEMA declaration records, ranked 3022 of 3,266 counties in this registry.
Natrona County versus quieter counties in this dataset
Natrona County among lower-declaration counties nationally
FEMA disaster declarations, all-time · Natrona County
8 6th percentile higher than 6% of 3,266 counties
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
Natrona County's FEMA Risk Index score
Which hazard drives modeled loss here?
FEMA's modeled annual dollar loss for Natrona County is led by Riverine Flooding (about $18.7M Expected Annual Loss, Historical Loss Ratio Relatively Moderate), while Winter Weather carries the highest National Risk Index rating (Very 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 Natrona County's hazard record show?
Reading the federal records together
The NFIP claims register shows a middle-volume loss record here: 57 paid claims, totaling $247.4K. PlainHazard uses 50-499 claims for this descriptive band; FEMA does not publish it as a safety or coverage category. The $4.3K 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. Natrona County's 8 federal records stand 40% above the Wyoming county mean of 5.7. 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, 68.9/100, rated Relatively Low. Its Expected Annual Loss rating is Relatively Low (roughly $32.6M in annualized losses), and a Relatively Low social-vulnerability profile combined with Relatively Moderate community resilience shapes how much of that raw exposure becomes realized harm. Of the 18 hazards FEMA models, Winter Weather stands out as the sharpest exposure here, rated Very High. FEMA's modeled frequency puts that hazard at an average of 17 times per year here, based on 330 historical events on record.
41 /100
Historical Activity Index
Moderate historical activity
Natrona County, WY · 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
6/30
8 OpenFEMA declarations, full ingest window (0.4x national county average)
County Disaster Density High
18/25
8 declarations (1.4x state county average of 6)
Major Disaster Share Moderate
9/25
3 of 8 declarations are major disasters (38%)
Hazard Diversity Moderate
8/20
3 different disaster types declared in Natrona County
FEMA NRI 8-hazard radar - Natrona County
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.
Major Disaster share
38%
Mixed major share
NRI risk score
69
Relatively Low
Source: FEMA National Risk Index Per-county per-hazard ratings, December 2025 release
How often does each hazard strike Natrona 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 | Very High | an average of 17 times per year |
| Wildfire | Relatively Moderate | roughly once every 427 years |
| Landslide | Relatively Moderate | an average of 3.3 times per year |
| Earthquake | Relatively Low | roughly once every 346 years |
| Cold Wave | Relatively Moderate | an average of 1.7 times per year |
| Avalanche | Relatively Moderate | roughly once every 10 years |
| Riverine Flooding | Relatively Moderate | roughly once every 1 years |
| Lightning | Relatively Moderate | an average of 38 times per year |
| Ice Storm | Relatively Low | roughly once every 67 years |
| Hail | Relatively Low | roughly once every 2 years |
| Tornado | Relatively Low | roughly once every 2 years |
| Drought | Very Low | 79 modeled event-days per year |
| Heat Wave | Very Low | 0.1 modeled event-days per year |
| Strong Wind | Very Low | roughly once every 3 years |
Source: FEMA National Risk Index Modeled annualized frequency; drought and heat wave use event-days/year, December 2025 release
Disaster Types
Fire 4
Flood 2
Biological 2
What Fire declarations mean here
Fire is the most frequent declaration type on Natrona County's record, 50% of its declarations. Wildfire is the one hazard here with its own dedicated federal instrument: the Fire Management Assistance Grant, which appears in this data as an FM record. An FMAG can be authorised while a fire is still burning, on a timescale of hours, because its purpose is to reimburse the cost of fighting a fire that threatens to become a major disaster.
That distinction matters when comparing counties. An FM declaration is not a presidential major disaster declaration and does not carry the same assistance programmes, so a fire-heavy county's total is not directly comparable with a hurricane-heavy county's total unless the declaration types are separated, which is why they are listed separately on this page.
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).
Fire Management - 4 50.0%
of all 8 declarations
Major Disaster - 3 37.5%
of all 8 declarations
Emergency - 1 12.5%
of all 8 declarations
FEMA Declarations Timeline
| Year | Declarations | |
|---|---|---|
| 2023 | 1 | |
| 2020 | 2 | |
| 2016 | 1 | |
| 2012 | 1 | |
| 2006 | 1 | |
| 2000 | 1 | |
| 1978 | 1 | |
Disaster Declarations
How the 8 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.
Download these 8 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.
| DR# | Title | Type | Incident | Date |
|---|---|---|---|---|
| 4739 | FLOODING | DR | Flood | 2023-09-11 |
| 4535 | COVID-19 PANDEMIC | DR | Biological | 2020-04-11 |
| 3479 | COVID-19 | EM | Biological | 2020-03-13 |
| 5115 | STATION FIRE | FM | Fire | 2015-10-11 |
| 5014 | SHEEP HERDER HILL FIRE COMPLEX | FM | Fire | 2012-09-09 |
| 2665 | JACKSON CANYON FIRE | FM | Fire | 2006-08-14 |
| 2315 | WY - DEAD HORSE FIRE | FM | Fire | 2000-07-31 |
| 557 | SEVERE STORMS, FLOODING & MUDSLIDES | DR | Flood | 1978-05-29 |
Storm Events in Wyoming
Statewide NOAA context only. PlainHazard does not currently attribute these state totals to Natrona County.
| Storm Type | Events | Fatalities | Injuries | Property Damage |
|---|---|---|---|---|
| High Wind | 5,115 | 0 | 21 | $1.5M |
| Winter Storm | 2,212 | 1 | 41 | $115.0K |
| Hail | 1,811 | 0 | 0 | $5.5M |
| Thunderstorm Wind | 1,137 | 1 | 12 | $916.3K |
| Winter Weather | 616 | 3 | 7 | $100.0K |
Source: NOAA Storm Events Database State-level aggregated data, 2015-2025
NFIP Flood Insurance Claims
Total Claims
57
Total Paid
$247.4K
Avg Per Claim
$4.3K
Source: FEMA National Flood Insurance Program (NFIP) OpenFEMA Claims Data
FEMA National Risk Index
Overall Risk
Relatively Low
Score: 68.9/100
Expected Annual Loss
Relatively Low
$32.6M/year
Social Vulnerability
Relatively Low
Community Resilience
Relatively Moderate
Hazard Risk Breakdown
Winter Weather Very High
Wildfire Relatively Moderate
Landslide Relatively Moderate
Earthquake Relatively Low
Cold Wave Relatively Moderate
Avalanche Relatively Moderate
Riverine Flooding Relatively Moderate
Lightning Relatively Moderate
Ice Storm Relatively Low
Hail Relatively Low
Tornado Relatively Low
Drought Very Low
Heat Wave 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: 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 Natrona County: the model and the federal record do NOT point at the same hazard. Winter Weather carries the highest modeled rating (Very High), while the county's declaration history is led by Fire. 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
Natrona County's closest FEMA peer: Story County, IA
Comparisons use published FEMA declaration fields plus the National Risk Index composite for Natrona County. Record similarity, not a safety rating.
Similar modeled NRI score
Natrona County: NRI composite 68.9 (Relatively Low).
Similar Major-disaster share
Natrona County: 3 of 8 of its declarations are Major.
Closest declaration profiles
Natrona County shows 8 FEMA declarations, led by Fire.
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 Natrona County - capture-dated entries only.
Compare beyond this state
Nationwide peers by NRI score & FEMA declaration volume
Two PlainHazard-derived comparison paths for Natrona 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.
Similar NRI composite
Nearest out-of-state counties by FEMA NRI score. This county: 68.9 (Relatively Low).
Similar declaration volume
Nearest out-of-state counties by FEMA declaration count. This county: 8. NRI peers are excluded so the two link sets stay distinct.
Further reading for this county
Understanding disaster data
Natrona County's NFIP claims file (57 claims) and FEMA declaration history measure different federal records - this guide separates them from modeled NRI risk.
More PlainHazard guides
- Most disaster-prone counties - U.S. counties ranked by FEMA declaration totals.
- Understanding disaster data - declarations vs storm events vs NRI scores.
- Preparing for natural disasters - household checklist (not county-specific advice).
Frequently Asked Questions
What is the most common disaster type in Natrona County?
The most common disaster type in Natrona County is Fire, with 4 declarations. Other disaster types include Flood (2), Biological (2).
How does Natrona County's FEMA declaration record compare with the Wyoming average?
FEMA lists 8 declaration records for Natrona County. That is 40% above the Wyoming county mean of 5.7. Its count is also 61% 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 Natrona County received?
Natrona County has received 3 major disaster declarations, representing 38% of all 8 disaster declarations.
How many flood insurance claims has Natrona County filed?
Natrona County has 57 National Flood Insurance Program (NFIP) claims totaling $247.4K in payments, with an average of $4.3K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Natrona County?
No. In Natrona County, Winter Weather has the highest National Risk Index rating (Very High), while Riverine Flooding leads Expected Annual Loss at about $18.7M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Natrona County?
The most active year for disaster declarations in Natrona County was 2020, with 2 declarations. The county has FEMA disaster data spanning 1978 to 2023.
What is the FEMA National Risk Index score for Natrona County?
According to the FEMA National Risk Index, Natrona County, Wyoming has an overall risk score of 68.9 out of 100 (Relatively Low). The county's social vulnerability rating is Relatively Low and community resilience is Relatively Moderate. The Expected Annual Loss (EAL) score is Relatively Low, representing $32.6M in annualized losses.
Which natural hazard poses the greatest risk to Natrona County?
Based on FEMA NRI data, the highest-risk natural hazard in Natrona County as of the latest release is Winter Weather (risk rating: Very High). Other significant hazards include Wildfire (Relatively Moderate) and Landslide (Relatively Moderate). FEMA's modeled event frequency puts winter weather here at an average of 17 times per year, drawn from 330 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 Natrona County · vintage 2026-08-25 · Methodology · Wyoming profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events