FEMA Records
19
Below median
Alaska · FEMA + NOAA + National Risk Index
Yukon-Koyukuk Census Area, AK
19 FEMA disaster declarations (1987-2026), with a FEMA National Risk Index rating of Relatively Low. Most common hazard: Flood.
- 19
- FEMA declarations
- 15
- Major disasters
- 62
- NRI risk · Relatively Low
- Flood
- Top hazard
The verdict
Two federal records point in the busier direction for Yukon-Koyukuk Census Area. Its 19 FEMA declarations are 163% above the Alaska county mean and exceed the count for 41% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it in the riskiest 38%, based on modeled expected annual loss, social vulnerability, and community resilience.
- Riskiest 38%
- of U.S. counties for FEMA National Risk Index score
- Relatively Low
- FEMA National Risk Index rating
- 19
- FEMA declarations vs 21 national county avg
- 72
- 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.
How does Yukon-Koyukuk Census Area compare?
Yukon-Koyukuk Census Area vs. all counties in this dataset
FEMA disaster declarations, all-time
19 41st percentile higher than 41% 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 · 2026-08-03
Yukon-Koyukuk Census Area's FEMA Risk Index score
FEMA National Risk Index composite score vs. the Alaska county average
What does Yukon-Koyukuk Census Area's hazard record show?
Reading the federal records together
The NFIP claims register shows a middle-volume loss record here: 72 paid claims, totaling $3.3M. PlainHazard uses 50-499 claims for this descriptive band; FEMA does not publish it as a safety or coverage category. The $46.4K 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. Yukon-Koyukuk Census Area's 19 federal records stand 163% above the Alaska county mean of 7.2. 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, 61.5/100, rated Relatively Low. Its Expected Annual Loss rating is Very Low (roughly $12.4M in annualized losses), and a Very High social-vulnerability profile combined with Very Low community resilience shapes how much of that raw exposure becomes realized harm. Of the 18 hazards FEMA models, Cold Wave stands out as the sharpest exposure here, rated Relatively High. FEMA's modeled frequency puts that hazard at an average of 5.1 times per year here, based on 96 historical events on record.
Declaration frequency
The FEMA register is busy by both local and national comparisons. It contains 19 entries for Yukon-Koyukuk Census Area, including 15 Major Disaster records, 163% above the Alaska county mean. Across the 39-year span, that works out to 0.5 declarations a year. Flood leads the file with 8 entries. Declaration type records the federal action taken, not every assistance program approved.
77 /100
Historical Activity Index
Very High historical activity
Yukon-Koyukuk Census Area, AK · 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
14/30
19 OpenFEMA declarations, full ingest window (0.9x national county average)
County Disaster Density Very High
25/25
19 declarations (2.6x state county average of 7)
Major Disaster Share Very High
20/25
15 of 19 declarations are major disasters (79%)
Hazard Diversity Very High
18/20
7 different disaster types declared in Yukon-Koyukuk Census Area
Historical Declaration Activity
Activity Band
High
vs. Alaska Avg
+163%
State avg: 7.2
vs. National Avg
-8%
National avg: 20.7
Avg Per Year
0.5
Over 39 years
FEMA NRI 8-hazard radar - Yukon-Koyukuk Census Area
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
79%
Mostly major
NRI risk score
62
Relatively Low
Source: FEMA National Risk Index Per-county per-hazard ratings, December 2025 release
How often does each hazard strike Yukon-Koyukuk Census Area?
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. These modeled frequencies are not forecasts.
| Hazard | NRI Risk Rating | Recurrence |
|---|---|---|
| Cold Wave | Relatively High | an average of 5.1 times per year |
| Landslide | Relatively Moderate | an average of 3.7 times per year |
| Wildfire | Relatively Moderate | roughly once every 102 years |
| Avalanche | Relatively Moderate | roughly once every 30 years |
| Winter Weather | Relatively Moderate | an average of 25 times per year |
| Earthquake | Relatively Low | roughly once every 11 years |
| Volcanic Activity | Very Low | roughly once every 48 years |
| Ice Storm | Very Low | roughly once every 68 years |
| Lightning | Very Low | an average of 33 times per year |
| Riverine Flooding | Very Low | roughly once every 100 years |
| Strong Wind | Very Low | roughly once every 4,710 years |
| Hail | Very Low | roughly once every 8,296 years |
| Tornado | Very Low | roughly once every 3,599 years |
Source: FEMA National Risk Index Modeled annualized frequency; drought and heat wave use event-days/year, December 2025 release
Disaster Types
Flood 8
Fire 3
Severe Storm 3
Biological 2
Earthquake 1
Snowstorm 1
Freezing 1
What Flood declarations mean here
Flood is the most frequent declaration type on Yukon-Koyukuk Census Area's record, 42% of its declarations. Federal flood declarations cover two mechanisms that behave very differently: riverine flooding, which builds over days as a watershed drains and is usually forecast well in advance, and flash flooding, which can arrive in under an hour from rainfall that fell somewhere upstream.
Flood is also the one hazard class where a second federal dataset exists for the same events. The National Flood Insurance Program records what was actually paid on insured losses, so it measures a narrower thing than the declaration count: uninsured damage, and flooding outside mapped special flood hazard areas, never enters it. Reading the two together is more informative than either alone.
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 78.9%
of all 19 declarations
Fire Management - 3 15.8%
of all 19 declarations
Emergency - 1 5.3%
of all 19 declarations
FEMA Declarations Timeline
| Year | Declarations | |
|---|---|---|
| 2026 | 1 | |
| 2025 | 1 | |
| 2023 | 1 | |
| 2022 | 2 | |
| 2020 | 2 | |
| 2013 | 1 | |
| 2009 | 1 | |
| 2008 | 1 | |
| 2006 | 2 | |
| 2003 | 1 | |
| 2002 | 1 | |
| 1994 | 1 | |
| 1991 | 1 | |
| 1989 | 2 | |
| 1987 | 1 | |
Disaster Declarations
How the 19 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.
Download these 19 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.
| DR# | Title | Type | Incident | Date |
|---|---|---|---|---|
| 4893 | SEVERE STORMS, FLOODING, AND REMNANTS OF TYPHOON HALONG | DR | Flood | 2025-10-22 |
| 5597 | NENANA RIDGE COMPLEX | FM | Fire | 2025-07-06 |
| 4730 | FLOODING | DR | Flood | 2023-08-23 |
| 5442 | CLEAR FIRE | FM | Fire | 2022-06-26 |
| 4648 | SEVERE WINTER STORM AND STRAIGHT-LINE WINDS | DR | Severe Storm | 2022-03-24 |
| 4533 | COVID-19 PANDEMIC | DR | Biological | 2020-04-09 |
| 3446 | COVID-19 | EM | Biological | 2020-03-13 |
| 4122 | FLOODING | DR | Flood | 2013-06-25 |
| 1843 | FLOODING AND ICE JAMS | DR | Flood | 2009-06-11 |
| 1796 | SEVERE STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES | DR | Severe Storm | 2008-09-26 |
| 1657 | SNOW MELT AND ICE JAM FLOODING | DR | Flood | 2006-08-04 |
| 2641 | PARKS HIGHWAY (TAMARACK) FIRE | FM | Fire | 2006-06-08 |
| 1440 | EARTHQUAKE | DR | Earthquake | 2002-11-08 |
| 1423 | FLOODING | DR | Flood | 2002-06-26 |
| 1039 | SEVERE STORMS AND FLOODING | DR | Severe Storm | 1994-09-13 |
| 909 | HEAVY SNOW, ICE JAMS & FLOODING | DR | Snowstorm | 1991-05-30 |
| 832 | FLOODING | DR | Flood | 1989-06-10 |
| 826 | SEVERE FREEZING | DR | Freezing | 1989-05-10 |
| 782 | SEVERE STORMS & FLOODING | DR | Flood | 1986-10-27 |
Storm Events in Alaska
Statewide NOAA context only. PlainHazard does not currently attribute these state totals to Yukon-Koyukuk Census Area.
| Storm Type | Events | Fatalities | Injuries | Property Damage |
|---|---|---|---|---|
| High Wind | 709 | 0 | 1 | $8.4M |
| Blizzard | 524 | 0 | 0 | $60.0K |
| Heavy Snow | 439 | 0 | 0 | $0 |
| Winter Storm | 385 | 0 | 0 | $200.0K |
| Flood | 182 | 0 | 0 | $81.9M |
Source: NOAA Storm Events Database State-level aggregated data, 2015-2025
NFIP Flood Insurance Claims
Total Claims
72
Total Paid
$3.3M
Avg Per Claim
$46.4K
Source: FEMA National Flood Insurance Program (NFIP) OpenFEMA Claims Data
FEMA National Risk Index
Overall Risk
Relatively Low
Score: 61.5/100
Expected Annual Loss
Very Low
$12.4M/year
Social Vulnerability
Very High
Community Resilience
Very Low
Hazard Risk Breakdown
Cold Wave Relatively High
Landslide Relatively Moderate
Wildfire Relatively Moderate
Avalanche Relatively Moderate
Winter Weather Relatively Moderate
Earthquake Relatively Low
Volcanic Activity Very Low
Ice Storm Very Low
Lightning Very Low
Riverine Flooding Very Low
Strong Wind Very Low
Hail Very Low
Tornado Very Low
Drought 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: Cold Wave
Cold Wave measures exposure to extreme cold rather than to snow. Its harm is concentrated in health effects, burst infrastructure and energy demand spikes, and it falls hardest where the building stock and the grid were not built with sustained cold in mind.
Worth noting for Yukon-Koyukuk Census Area: the model and the federal record do NOT point at the same hazard. Cold Wave carries the highest modeled rating (Relatively High), while the county's declaration history is led by Flood. 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
Yukon-Koyukuk Census Area's closest FEMA peer: Windsor County, VT
Comparisons use published FEMA declaration fields plus the National Risk Index composite for Yukon-Koyukuk Census Area. Record similarity, not a safety rating.
Similar modeled NRI score
Yukon-Koyukuk Census Area: NRI composite 61.5 (Relatively Low).
Similar Major-disaster share
Yukon-Koyukuk Census Area: 15 of 19 of its declarations are Major.
Closest declaration profiles
Yukon-Koyukuk Census Area shows 19 FEMA declarations, led by Flood.
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 Yukon-Koyukuk Census Area - capture-dated entries only.
Further reading for this county
Understanding disaster data
Yukon-Koyukuk Census Area's NFIP claims file (72 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).
Related
Frequently Asked Questions
What is the most common disaster type in Yukon-Koyukuk Census Area?
The most common disaster type in Yukon-Koyukuk Census Area is Flood, with 8 declarations. Other disaster types include Fire (3), Severe Storm (3), Biological (2).
How does Yukon-Koyukuk Census Area's FEMA declaration record compare with the Alaska average?
FEMA lists 19 declaration records for Yukon-Koyukuk Census Area. That is 163% above the Alaska county mean of 7.2. Its count is also 8% 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 Yukon-Koyukuk Census Area received?
Yukon-Koyukuk Census Area has received 15 major disaster declarations, representing 79% of all 19 disaster declarations.
How many flood insurance claims has Yukon-Koyukuk Census Area filed?
Yukon-Koyukuk Census Area has 72 National Flood Insurance Program (NFIP) claims totaling $3.3M in payments, with an average of $46.4K per claim.
What was the worst year for disasters in Yukon-Koyukuk Census Area?
The most active year for disaster declarations in Yukon-Koyukuk Census Area was 1989, with 2 declarations. The county has FEMA disaster data spanning 1987 to 2026.
What is the FEMA National Risk Index score for Yukon-Koyukuk Census Area?
According to the FEMA National Risk Index, Yukon-Koyukuk Census Area, Alaska has an overall risk score of 61.5 out of 100 (Relatively Low). Social vulnerability here rates Very High, while community resilience comes in at Very Low. The Expected Annual Loss (EAL) score is Very Low, representing $12.4M in annualized losses.
Which natural hazard poses the greatest risk to Yukon-Koyukuk Census Area?
Based on FEMA NRI data, the highest-risk natural hazard in Yukon-Koyukuk Census Area as of the latest release is Cold Wave (risk rating: Relatively High). Other significant hazards include Landslide (Relatively Moderate) and Wildfire (Relatively Moderate). FEMA's modeled event frequency puts cold wave here at an average of 5.1 times per year, drawn from 96 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.
What this means for Yukon-Koyukuk Census Area
Yukon-Koyukuk Census Area, AK has 19 federal declaration records, 163% more than the Alaska county mean of 7; its history sits in PlainHazard's high activity band.
- Within this above-state-average declaration file, major disaster leads with 15 of 19 records; the category describes past federal action, not the next likely hazard. Alaska overview
- The state benchmark and national rank point the same way: this count tops the Alaska mean and the totals for 41% of 3,266 U.S. counties. Most-disaster rankings
- Use the data guide to separate this mid-volume insurance-claims file from declaration counts and modeled NRI risk. Disaster-data guide
An above-average declaration count records past federal responses; it does not predict the next event. Current warnings come from the National Weather Service and local emergency officials.
PlainHazard derives this profile from FEMA's Disaster Declarations Summaries and National Risk Index data. The declaration comparison covers 3,266 U.S. counties and county equivalents in this database, refreshed as of 2026-08-03. Read our methodology - how this data is sourced, computed, and verified.
All federal data sources used on this page
- FEMA OpenFEMA, Disaster Declarations Summaries v2 - all federally-declared disasters for this county. fema.gov/openfema/disaster-declarations
- FEMA National Risk Index (NRI) - per-county per-hazard risk ratings and expected annual loss. hazards.fema.gov/nri
- NOAA NCEI Storm Events Database - state-level storm/severe-weather event records, 2015-2025. ncdc.noaa.gov/stormevents
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainHazard Editorial
Verify with FEMA → · Verify with FEMA NRI → · Verify with NOAA →
Every figure on PlainHazard is rendered directly from FEMA federal disaster data, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or national statistics report, the data & editorial changelog, or report a data error.