FEMA Records
3
Total declarations
Wyoming · FEMA + NOAA + National Risk Index
Carbon County, WY
3 FEMA disaster declarations (2020–2020), with a FEMA National Risk Index rating of Very Low. Most common hazard: Fire.
- 3
- FEMA declarations
- 1
- Major disasters
- 43
- NRI risk · Very Low
- Fire
- Top hazard
The verdict
Carbon County ranks safer than 43% of U.S. counties for FEMA-modeled hazard risk, with more federally declared disasters than 41% of the 2,791 counties FEMA tracks. FEMA rates the county's overall risk as Very Low, based on 3 federal disaster declarations recorded since 2020, most often fire, 22% below the national county average of 4.
- Safer than 43%
- of U.S. counties for FEMA National Risk Index score
- Very Low
- FEMA National Risk Index rating
- 3
- FEMA declarations vs 4 national county avg
- 2
- fire declarations, the most common hazard here
FEMA's National Risk Index score reflects expected annual loss, social vulnerability, and community resilience; the declaration count above reflects only Presidentially declared disasters, not every hazard event.
How does Carbon County compare?
Carbon County vs. every U.S. county
FEMA disaster declarations, all-time
3 41st percentile higher than 41% of 2,791 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 · 2026-07-25
Carbon County's FEMA Risk Index score
FEMA National Risk Index composite score vs. the Wyoming county average
How disaster-prone is Carbon County?
Declaration frequency
Carbon County, Wyoming has recorded 3 FEMA disaster declarations between 2020 and 2020, of which 1 were classified as Major Disaster declarations (DR) requiring federal individual and public assistance. That puts the county's average at - declarations per year, or roughly 73% above the Wyoming county average of 1.7 and 22% below the national county average of 3.8. The dominant disaster type on record is Fire, with 2 of 3 declarations falling under this category.
FEMA National Risk Index
FEMA's data shows an elevated National Risk Index composite of 42.7/100 for this county (Very Low rating). Expected Annual Loss comes in at Very Low (roughly $12.4M in annualized losses). Social vulnerability (Relatively Moderate) and community resilience (Relatively Low) both factor into how that raw exposure plays out on the ground. Of the 18 hazards FEMA models, Avalanche stands out as the sharpest exposure here, rated Relatively High.
Flood exposure & the bottom line
Taken together, Carbon County reads as low relative risk on this historical lens, fewer federally recognized disasters than a typical U.S. county.
Risk Assessment
Risk Level
Low
vs. Wyoming Avg
+73%
State avg: 1.7
vs. National Avg
-22%
National avg: 3.8
Avg Per Year
-
-
FEMA NRI 8-hazard radar - Carbon County
How to read this radar
The radar plots Carbon County's relative exposure to the eight headline natural hazards used by the FEMA National Risk Index. Each axis is the qualitative NRI risk rating (Very Low through Very High) re-expressed on a 0-100 scale so that the polygon shape lets you compare a county against another at a glance. A rounder polygon means broad multi-hazard exposure; a spiky polygon means one or two dominant hazards drive most of the modeled risk.
NRI Source
FEMA 2023
Latest NRI release
County FIPS
56007
WY state code
Source: FEMA National Risk Index FEMA National Risk Index Per-county per-hazard ratings, 2023 release
Disaster Types
Fire 2
Biological 1
Declaration Types
What DR / EM / FM mean
FEMA categorizes declarations as Major Disasters (DR), Emergencies (EM), or Fire Management Assistance (FM).
Fire Management - 2 66.7%
of all 3 declarations
Major Disaster - 1 33.3%
of all 3 declarations
FEMA Declarations Timeline
| Year | Declarations | |
|---|---|---|
| 2020 | 3 | |
Disaster Declarations
| DR# | Title | Type | Incident | Date |
|---|---|---|---|---|
| 5375 | MULLEN FIRE | FM | Fire | 2020-09-26 |
| 5347 | 316 FIRE | FM | Fire | 2020-09-05 |
| 4535 | COVID-19 PANDEMIC | DR | Biological | 2020-04-11 |
Storm Events in Wyoming
| Storm Type | Events | Fatalities | Injuries | Property Damage |
|---|---|---|---|---|
| High Wind | 5,943 | 0 | 21 | $2.2M |
| Winter Storm | 2,460 | 1 | 41 | $115.0K |
| Hail | 1,990 | 0 | 0 | $6.5M |
| Thunderstorm Wind | 1,368 | 1 | 12 | $962.3K |
| Winter Weather | 718 | 3 | 7 | $100.0K |
Source: NOAA Storm Events Database NOAA Storm Events Database State-level aggregated data, 2015–2025
FEMA National Risk Index
Overall Risk
Very Low
Score: 42.7/100
Expected Annual Loss
Very Low
$12.4M/year
Social Vulnerability
Relatively Moderate
Community Resilience
Relatively Low
Hazard Risk Breakdown
Avalanche Relatively High
Lightning Relatively High
Landslide Relatively Moderate
Wildfire Relatively Low
Winter Weather Relatively Moderate
Cold Wave Relatively Moderate
Earthquake Relatively Low
Ice Storm Relatively Low
Drought Very Low
Strong Wind Very Low
Tornado Very Low
Hail Very Low
Heat Wave No Rating
Source: FEMA National Risk Index (NRI) FEMA National Risk Index (NRI) Ratings reflect relative scores among all US counties. Data: hazards.fema.gov/nri
Counties with Similar Risk in Wyoming
Disaster Preparedness Guides
Related
Frequently Asked Questions
How many natural disasters has Carbon County, Wyoming had?
Carbon County, Wyoming has received 3 FEMA disaster declarations from 2020 to 2020. Of these, 1 were major disaster declarations.
What is the most common disaster type in Carbon County?
The most common disaster type in Carbon County is Fire, with 2 declarations. Other disaster types include Biological (1).
How does Carbon County's disaster risk compare to the Wyoming average?
Carbon County has 3 disaster declarations, which is 73% higher than the Wyoming county average of 1.7 declarations. Compared to the national county average of 3.8, it is 22% lower.
How many major FEMA disaster declarations has Carbon County received?
Carbon County has received 1 major disaster declaration, representing 33% of all 3 disaster declarations. Major disaster declarations typically involve significant damage requiring federal assistance.
What types of storms are most common in Wyoming?
The most common storm types in Wyoming include High Wind (5,943 events), Winter Storm (2,460 events), Hail (1,990 events). NOAA storm event data covers severe weather from 2015 to 2025.
What is the overall disaster risk level for Carbon County?
Carbon County's 3 FEMA disaster declarations put it in the low-risk band, fewer federally recognized disasters than a typical U.S. county over the same span.
What is the FEMA National Risk Index score for Carbon County?
According to the FEMA National Risk Index, Carbon County, Wyoming has an overall risk score of 42.7 out of 100 (Very Low). The county's social vulnerability rating is Relatively Moderate and community resilience is Relatively Low. The Expected Annual Loss (EAL) score is Very Low, representing $12.4M in annualized losses.
Which natural hazard poses the greatest risk to Carbon County?
Based on FEMA NRI data, the highest-risk natural hazard in Carbon County is Avalanche (risk rating: Relatively High). Other significant hazards include Lightning (Relatively High) and Landslide (Relatively Moderate). 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.
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 Carbon County
Carbon County, WY runs 73% above the Wyoming county average for federal disaster declarations (3 vs 2), a low historical load overall.
- Its most common federal declaration type is fire management (2 of 3) - know the hazards most likely here before they happen. Wyoming overview
- See how this county ranks against the rest of the country for disaster frequency. Most-disaster rankings
- Read how to read FEMA declarations, NRI risk scores, and what they do and don't tell you. Disaster-data guide
Historical declaration counts describe past federal response, not a forecast. For current threats, follow the National Weather Service and local officials; in an emergency call 911.
According to the Federal Emergency Management Agency, this profile draws on 2,791 tracked U.S. counties in FEMA's Disaster Declarations Summaries dataset, refreshed as of 2026-07-25. 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. This page draws directly on FEMA federal disaster data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or national statistics report, or report a data error.