Teton County, WY
FEMA National Risk Index scores, disaster declarations & hazard data
Teton County has experienced 5 federally declared disasters since 2001, most recently Covid-19 in 2020. Its overall natural hazard risk is rated Relatively Low — lower risk than most US counties.
Teton County's highest-rated hazards are avalanche, lightning, and landslide, with its top risk rated "Very High" by FEMA's National Risk Index. Community vulnerability is relatively low (17th 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. Teton County has been designated in 5 declarations since 2001, covering 3 disaster types including biological (2), severe storm (2), fire (1).
| Year | Type | Event name |
|---|---|---|
| 2020 | Biological | Covid-19 Pandemic |
| 2020 | Biological | Covid-19 |
| 2017 | Severe Storm | Severe Winter Storm And Straight-Line Winds |
| 2011 | Severe Storm | Severe Storms, Flooding, And Landslides |
| 2001 | Fire | Wy Wildfire -Green Knoll- July 23, 2001 |
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 Moderate | 90.6 | 0 | 0 | — |
| Inland Flooding | Very Low | 34.7 | 2 | 0 | $10K |
| Coastal Flooding | Not Applicable | — | 0 | 0 | — |
| Earthquake | Relatively Low | 87.1 | 97 | — | — |
| Heat Wave | Very Low | 2.2 | 0 | 0 | — |
| Tornado | Very Low | 19.4 | 2 | 0 | $1K |
| Hurricane | Not Applicable | — | 0 | 0 | — |
| Hail | Very Low | 22.4 | 4 | 0 | — |
| Strong Wind | Very Low | 8.9 | 0 | 0 | — |
| Winter Weather | Relatively Moderate | 64.2 | 0 | 0 | — |
| Ice Storm | Very Low | 12.2 | — | — | — |
| Cold Wave | Very Low | 22.5 | — | — | — |
| Lightning | Very High | 97.2 | 2 | 1 | — |
| Drought | Very Low | 16.4 | 0 | 0 | — |
| Landslide | Relatively Moderate | 93.8 | 1 | 0 | — |
| Avalanche | Very High | 100 | — | — | — |
| Tsunami | Not Applicable | — | — | — | — |
| Volcanic Activity | Very Low | 65.1 | — | — | — |
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
Teton County ranks in the 17th 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 | 17th | Very low |
| Socioeconomic status | 10th | Very low |
| Household characteristics | 5th | Very low |
| Racial & ethnic minority status | 54th | Moderate |
| Housing type & transportation | 59th | Moderate |
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 | 87th | Very High |
| Risk to homes | 88th | Very High |
| Buildings in direct exposure zone | 75.8% | — |
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 Teton County?
According to the FEMA National Risk Index, the highest-risk hazards in Teton County, Wyoming are avalanche, lightning, and landslide. The county's overall natural hazard risk is rated Relatively Low — lower risk than most US counties.
Has Teton County received federal disaster declarations?
Yes. Teton County has received 5 federal disaster declarations since 2001, including declarations in 2020. The most common disaster type on record is biological (2 declarations).
Has Teton County had any FEMA disaster declarations in 2024, 2025, or 2026?
No federal disaster declarations have been recorded for Teton County since the start of 2024. Its most recent declaration on record is Covid-19 in 2020.
How does Teton County's natural hazard risk compare to nearby counties?
Among neighboring counties, Bonneville County, ID has the highest overall natural hazard risk (Relatively Moderate) and Sublette County, WY has the lowest (Very Low). Teton County is rated Relatively Low overall.
How is Teton County's composite disaster risk index calculated?
Teton 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. Teton County's composite score of 71 means its overall natural hazard risk is higher than 71% of US counties.