Natural disaster risk in Sheridan County, Wyoming
Wyoming · population 30,921 · FIPS 56033
Overall: relatively low risk
Sheridan County has a composite risk score of 65.2 out of 100 — higher than 65% of US counties. It ranks 4 of 23 in Wyoming (1 = highest risk). Its highest-rated hazards are winter weather, wildfire, avalanche.
Drought now: Yes: D2 Severe Drought, 33 weeks
Yes. On the U.S. Drought Monitor map valid 13 October 2026, 92.9% of Sheridan County is in D2 Severe Drought. Some of it has been at D2 or worse for 33 weeks in a row. In all, 100% of the county is in drought (D1 to D4).
Drought in Sheridan County: the last 52 weeks · droughtmonitor.unl.edu
The U.S. Drought Monitor is jointly produced by the National Drought Mitigation Center at the University of Nebraska-Lincoln, the United States Department of Agriculture, the National Oceanic and Atmospheric Administration and the National Aeronautics and Space Administration. Map courtesy of NDMC.
Risk, loss, vulnerability and resilience
| Measure | Rating and score |
|---|---|
| Overall risk Expected annual loss, adjusted for social vulnerability and community resilience. |
Relatively low 65.2 |
| Expected annual loss About $25.8 million a year, on average, across all 18 hazards. |
Relatively low 68.6 |
| Social vulnerability Higher means people may find it harder to prepare and recover. |
Relatively low 32.4 |
| Community resilience Higher means a stronger ability to prepare, adapt and recover. |
Relatively moderate 50.9 |
Risk by hazard
FEMA's risk rating for each of 18 natural hazards in Sheridan County, highest first. "Not applicable" means the hazard is not modelled here.
| Hazard | Risk rating and score |
|---|---|
| Winter weather | Relatively high 93 |
| Wildfire | Relatively moderate 93 |
| Avalanche | Relatively moderate 80 |
| Cold wave | Relatively moderate 77 |
| Inland (riverine) flooding | Relatively moderate 74 |
| Lightning | Relatively moderate 68 |
| Landslide | Relatively low 76 |
| Earthquake | Relatively low 65 |
| Hail | Relatively low 60 |
| Heat wave | Very low 33 |
| Drought | Very low 23 |
| Tornado | Very low 22 |
| Strong wind | Very low 15 |
| Ice storm | Very low 14 |
| Volcanic activity | Very low 11 |
| Coastal flooding | Not applicable |
| Hurricane | Not applicable |
| Tsunami | Not applicable |
FEMA disaster declarations for Sheridan County
Federal declarations that designated Sheridan County, since 1 Jan 2024 (the period this site keeps from OpenFEMA). Older declarations are in FEMA's own dataset.
Yes. Sheridan County has been named in 1 FEMA declaration since 1 Jan 2024. The latest is FM-5539-WY (Elk Fire), declared 30 Sep 2024.
| Declaration | Kind | Incident | Declared | Individual assistance here |
|---|---|---|---|---|
| FM-5539-WY | Fire management | Elk Fire | 30 Sep 2024 | No |
All FEMA declarations in Wyoming, with estimated apply-by dates · Open FEMA deadlines
This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s). Dataset: Disaster Declarations Summaries - v2.
How to read these ratings
- Ratings run in five steps: very low, relatively low, relatively moderate, relatively high and very high. They compare a county with every other US county; they are not a measure of danger on their own.
- Scores run from 0 to 100 and are national percentiles. The bar shows the score: a score of 80 means a higher value than 80% of US counties.
- Overall risk combines the expected annual loss with social vulnerability and community resilience.
- Expected annual loss is the average yearly loss to buildings, people and agriculture the model expects from all 18 hazards.
- Social vulnerability describes how hard it may be for people to prepare for and recover from a disaster. Higher is worse.
- Community resilience describes a community's ability to prepare, adapt and recover. Higher is better.
- "Not applicable" means FEMA does not model that hazard there (for example, hurricanes far inland).
About this data
Source: FEMA National Risk Index, version 1.20, released December 2025, published by the Federal Emergency Management Agency (US public domain). About the National Risk Index. The index is a model of relative risk built from historical hazard records, what is exposed and community factors. It is not a forecast, it does not describe any single property, and it is not insurance or financial advice. For decisions about a specific address, check FEMA's flood maps and your local emergency management office.
Questions
What is the natural disaster risk in Sheridan County, Wyoming?
FEMA's National Risk Index rates the overall risk in Sheridan County as relatively low, with a score of 65.2 out of 100 (higher than 65% of US counties). That is a comparison with other US counties, not a forecast.
What are the biggest natural hazards in Sheridan County?
The hazards rated highest for Sheridan County are winter weather (relatively high), wildfire (relatively moderate), avalanche (relatively moderate).
What is the flood risk in Sheridan County?
FEMA rates inland (river and rain) flooding risk in Sheridan County as relatively moderate. For a specific property, check the FEMA flood map and your local floodplain office.
Has Sheridan County had a FEMA disaster declaration?
Yes. Sheridan County has been named in 1 FEMA declaration since 1 Jan 2024. The latest is FM-5539-WY (Elk Fire), declared 30 Sep 2024.
Is Sheridan County in a drought?
Yes. On the U.S. Drought Monitor map valid 13 October 2026, 92.9% of Sheridan County is in D2 Severe Drought. Some of it has been at D2 or worse for 33 weeks in a row. In all, 100% of the county is in drought (D1 to D4).
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