Cache County, Utah
Natural disaster risk, federal disaster history and flood insurance facts.
Cache County, Utah has a relatively low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 66% of US counties. It ranks 6th of 29 counties in Utah. The costliest hazards here are earthquakes, inland flooding and avalanches. FEMA estimates about $39 million a year in expected losses, or roughly $292 per resident. Since 1977 it has been included in 5 federal disaster or emergency declarations for natural events (3 major disasters). The most recent was in April 2017 (severe winter storms and flooding). Fewer than 1 in 100 homes here carry federal flood insurance (83 policies). Since 1978, federal flood insurance has paid about $132,000 on 42 claims here.
FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.
Top risks in Cache County
- Ask whether an older house is bolted to its foundation.
- Consider separate earthquake insurance where risk is high.
- Check the FEMA flood map for your address, and ask the seller or landlord about past flooding.
- Price a flood policy now. Most new federal policies take 30 days to start.
- Check avalanche forecasts before backcountry trips.
- Ask about slide paths near mountain homes.
All 18 hazards
What the ratings mean ›| Hazard | Rating | Score | Expected loss a year | |
|---|---|---|---|---|
| Earthquake | 94.6 | $19M | ||
| Inland flooding | 45.8 | $9M | ||
| Avalanche | 93.1 | $4M | ||
| Cold wave | 53.6 | $2M | ||
| Lightning | 85.1 | $1M | ||
| Wildfire | 85.3 | $1M | ||
| Winter weather | 93.3 | $836K | ||
| Heat wave | 56.2 | $749K | ||
| Tornado | 21.2 | $394K | ||
| Drought | 58.0 | $375K | ||
| Strong wind | 24.3 | $346K | ||
| Hail | 16.1 | $84K | ||
| Landslide | 84.5 | $43K | ||
| Ice storm | 21.1 | $27K |
Scores are percentiles: a score of 90 means higher risk than about 90% of US counties for that hazard. Hazards FEMA does not rate here are left out. Social vulnerability is very low and community resilience is relatively high in FEMA's measures.
Federal disaster history
Recent disasters nationwide ›Declarations by decade
Federal declarations for natural events that included Cache County. 2020s bar runs to November 2026.
By type
Most recent
Utah also had 7 statewide declarations that did not name single counties.
Storm history since 1969
Tornado risk by county ›The National Weather Service has logged 123 storm reports in Cache County since 1969 and about $5.7 million in reported damage. The strongest on record here was an F1 tornado on September 17, 1989.
Strongest tornadoes
| Date | Strength | Near | Hurt / killed |
|---|---|---|---|
| Sep 17, 1989 | F1 | – | 0 / 0 |
| May 29, 1987 | F1 | – | 0 / 0 |
| May 6, 1981 | F1 | – | 0 / 0 |
| Apr 11, 2026 | EF1 | Richmond | 0 / 0 |
| Aug 25, 1987 | F0 | – | 0 / 0 |
Most damaging storms
| Date | Type | Near | Damage |
|---|---|---|---|
| Feb 7, 2017 | Flood | Avon | $4M |
| May 13, 2011 | Flood | Nibley | $500K |
| Jun 15, 2011 | Flood | Providence | $200K |
| Apr 28, 2001 | Thunderstorm Wind | Trenton | $105K |
| Jun 23, 2011 | Flood | River Hgts | $100K |
| Jun 25, 2011 | Flood | Providence | $100K |
Source: NOAA Storm Events Database, county-based reports through Jun 27, 2026. Tornado records start in 1950, hail and wind in 1955, and floods and other storm types in 1996, so older decades undercount. Damage is in dollars of the year it happened and is often an estimate. Winter storms, heat and hurricanes are logged by forecast zone, not county, so they are not counted here.
Flood insurance in Cache County
Check your address flood zone ›National Flood Insurance Program (NFIP) records only; private flood policies are not included. Home counts as of Aug 3, 2026. Since 2021 NFIP prices each home separately under Risk Rating 2.0, so your price depends on the building, not the county. Ask an agent for a quote.
Homes in Cache County
Older homes and mobile homes usually suffer more damage in storms, floods and earthquakes, and can cost more to insure. If you are buying, ask about roof age, foundation bolting and any retrofits. Source: US Census Bureau, American Community Survey 2020 to 2024 5-year estimates; 46,665 housing units.
Compare in Utah
All 29 ›| Largest counties | Overall risk | Top hazard |
|---|---|---|
| Salt Lake County | Earthquake | |
| Utah County | Earthquake | |
| Davis County | Earthquake | |
| Weber County | Earthquake | |
| Washington County | Wildfire | |
| Cache County | Earthquake | |
| Tooele County | Wildfire | |
| Box Elder County | Earthquake |
Neighboring counties
| County | Overall risk | Declarations |
|---|---|---|
| Weber County | 9 | |
| Box Elder County | 7 | |
| Franklin County, ID | 2 | |
| Bear Lake County, ID | 2 | |
| Oneida County, ID | 1 | |
| Rich County | 3 |
Cities in Cache County
Common questions about Cache County
What is the biggest natural hazard in Cache County?
Earthquake has the highest expected yearly losses in Cache County, about $19.4 million a year in FEMA's estimate. Inland flooding is second at $8.8 million.
How many federal disasters has Cache County had?
Cache County has been included in 5 federal disaster or emergency declarations for natural events since 1977, including 3 major disasters. The most recent was Severe Winter Storms and Flooding in April 2017.
Is Cache County a high-risk place to live?
Its overall rating is Relatively Low, 6th highest of 29 in Utah. A county rating covers the whole area. Risk at one address can be much higher or lower, so check the FEMA flood map and ask about the home's history.
Do I need flood insurance in Cache County?
Standard home insurance does not cover flooding. About 1 in 500 homes in Cache County has federal flood insurance. Lenders require it in mapped high-risk zones, but many flood claims come from outside those zones.
How many tornadoes has Cache County had?
NOAA records list 5 tornadoes in Cache County since 1950. The strongest was an F1 tornado on September 17, 1989. The weather service has also logged 19 hail reports and 16 floods here.
Sources: FEMA National Risk Index (December 2025), OpenFEMA Disaster Declarations Summaries, and NFIP policy and claims data. Hazard Compass is independent and not affiliated with FEMA. These figures describe the whole county, not a single property, and are not insurance or safety advice. Report a problem.