Crook County, WY
FEMA National Risk Index scores, disaster declarations & hazard data
Crook County has experienced 7 federally declared disasters since 1978, most recently Covid-19 in 2020. Its overall natural hazard risk is rated Very Low — among the lowest-risk counties in the country.
Crook County's highest-rated hazards are wildfire, hail, and winter weather, with its top risk rated "Relatively Low" by FEMA's National Risk Index. Recorded storm events have decreased 49% over the past five years compared to the prior five-year period. Community vulnerability is relatively low (7th percentile nationally), indicating stronger recovery capacity than most US counties.
Past disasters & FEMA designations
A federal disaster declaration officially designates a county for FEMA disaster assistance. Crook County has been designated in 7 declarations since 1978, covering 4 disaster types including biological (2), severe storm (2), fire (2).
| Year | Type | Event name |
|---|---|---|
| 2020 | Biological | Covid-19 Pandemic |
| 2020 | Biological | Covid-19 |
| 2011 | Severe Storm | Severe Storms, Flooding, And Landslides |
| 2006 | Fire | Thorn Divide Fire Complex |
| 2001 | Fire | Wy - Mcfarland Divide Fire - 09/06/01 |
| 2001 | Severe Storm | Severe Winter Storm |
| 1978 | Flood | Severe Storms, Flooding & Mudslides |
Source: FEMA OpenFEMA Disaster Declarations Summaries. A single disaster can produce more than one record per county. Data current through September 2026.
Risk by hazard type
| Hazard | Risk rating | Risk score | Recorded events | Deaths | Prop. damage |
|---|---|---|---|---|---|
| Wildfire | Relatively Low | 85.1 | 0 | 0 | — |
| Inland Flooding | Very Low | 20.1 | 8 | 0 | $1K |
| Coastal Flooding | Not Applicable | — | 0 | 0 | — |
| Earthquake | Very Low | 29.2 | 2 | — | — |
| Heat Wave | Very Low | 4.2 | 0 | 0 | — |
| Tornado | Very Low | 22.2 | 7 | 0 | — |
| Hurricane | Not Applicable | — | 0 | 0 | — |
| Hail | Relatively Moderate | 82.2 | 169 | 0 | $2K |
| Strong Wind | Relatively Low | 18.1 | 0 | 0 | — |
| Winter Weather | Relatively Moderate | 67.9 | 0 | 0 | — |
| Ice Storm | Very Low | 7.6 | — | — | — |
| Cold Wave | Relatively Low | 58.7 | — | — | — |
| Lightning | Relatively Low | 31.2 | 0 | 0 | — |
| Drought | Very Low | 18.7 | 0 | 0 | — |
| Landslide | Very Low | 47.4 | 0 | 0 | — |
| Avalanche | Very Low | 3.7 | — | — | — |
| Tsunami | Not Applicable | — | — | — | — |
| Volcanic Activity | Not Applicable | — | — | — | — |
Scores are 0–100 percentiles relative to all US counties — higher means more exposed, not that a disaster is likely this year. Event counts: NOAA Storm Events 2016–2026; earthquake counts from USGS ComCat (M3.0+, 1996–2026). See the methodology page for details.
Community vulnerability
Crook County ranks in the 7th percentile (Very low) for community vulnerability — a measure of how hard disaster impacts tend to hit residents. Higher vulnerability means more displacement, worse health outcomes, and slower recovery after a disaster.
| SVI theme | Percentile | Vulnerability level |
|---|---|---|
| Overall | 7th | Very low |
| Socioeconomic status | 9th | Very low |
| Household characteristics | 37th | Low |
| Racial & ethnic minority status | 18th | Very low |
| Housing type & transportation | 8th | Very low |
Source: CDC/ATSDR Social Vulnerability Index 2022. Percentiles compare counties nationally — higher means more vulnerable relative to other counties. See CDC SVI for full methodology.
Future risk outlook
| Wildfire metric | National percentile | Level |
|---|---|---|
| Burn probability | 75th | Relatively High |
| Risk to homes | 75th | Relatively High |
| Buildings in direct exposure zone | 82.3% | — |
NOAA tracked 184 weather events in this county over 2016–2025: 122 in 2016–20 vs 62 in 2021–25 (-49% — frequency decreasing).
Wildfire: USDA Forest Service Wildfire Risk to Communities (RDS-2020-0016-2) — modeled values, not annual forecasts. See wildfirerisk.org. Inland flood and heat projections pending data availability; coastal sea-level projections are available for select coastal counties below — see the data page.
Nearby counties
Frequently asked questions
What natural hazards pose the greatest risk in Crook County?
According to the FEMA National Risk Index, the highest-risk hazards in Crook County, Wyoming are wildfire, hail, and winter weather. The county's overall natural hazard risk is rated Very Low — among the lowest-risk counties in the country.
Has Crook County received federal disaster declarations?
Yes. Crook County has received 7 federal disaster declarations since 1978, including declarations in 2020. The most common disaster type on record is biological (2 declarations).
Has Crook County had any FEMA disaster declarations in 2024, 2025, or 2026?
No federal disaster declarations have been recorded for Crook County since the start of 2024. Its most recent declaration on record is Covid-19 in 2020.
How does Crook County's natural hazard risk compare to nearby counties?
Among neighboring counties, Campbell County, WY has the highest overall natural hazard risk (Relatively Low) and Carter County, MT has the lowest (Very Low). Crook County is rated Very Low overall.
How is Crook County's composite disaster risk index calculated?
Crook County's composite disaster risk index — officially FEMA's National Risk Index (NRI) — scores every US county on a 0–100 percentile scale across 18 natural hazard types, factoring in expected annual loss, social vulnerability, and community resilience. Crook County's composite score of 16 means its overall natural hazard risk is higher than 16% of US counties.