Millard County, Utah
Natural disaster risk, federal disaster history and flood insurance facts.
Millard County, Utah has a very low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is lower than 78% of US counties. It ranks 17th of 29 counties in Utah. The costliest hazards here are earthquakes, inland flooding and wildfires. FEMA estimates about $7.1 million a year in expected losses, or roughly $544 per resident. Since 1977 it has been included in 9 federal disaster or emergency declarations for natural events (3 major disasters). The most recent was in August 2026 (Widemouth 2 Fire). Only 3 homes here carry federal flood insurance. Since 1978, federal flood insurance has paid about $772,000 on 48 claims here.
FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.
Top risks in Millard 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.
- Clear dry plants and debris within 5 feet of the house.
- Get home insurance quotes early; availability varies by area.
All 18 hazards
What the ratings mean ›| Hazard | Rating | Score | Expected loss a year | |
|---|---|---|---|---|
| Earthquake | 83.2 | $2M | ||
| Inland flooding | 16.3 | $2M | ||
| Wildfire | 91.2 | $1M | ||
| Drought | 79.3 | $806K | ||
| Winter weather | 92.5 | $449K | ||
| Heat wave | 37.4 | $183K | ||
| Lightning | 38.3 | $136K | ||
| Strong wind | 11.5 | $78K | ||
| Tornado | 8.1 | $41K | ||
| Cold wave | 5.4 | $20K | ||
| Avalanche | 73.4 | $8K | ||
| Ice storm | 10.4 | $5K | ||
| Hail | 1.8 | $2K | ||
| Landslide | 26.0 | $197 | ||
| Volcanic activity | 73.9 | $128 |
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 relatively moderate and community resilience is relatively moderate in FEMA's measures.
Federal disaster history
Recent disasters nationwide ›Declarations by decade
Federal declarations for natural events that included Millard 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 1968
Tornado risk by county ›The National Weather Service has logged 82 storm reports in Millard County since 1968 and about $1.3 million in reported damage. The strongest on record here was an F0 tornado on June 7, 1989.
Strongest tornadoes
| Date | Strength | Near | Hurt / killed |
|---|---|---|---|
| Jun 7, 1989 | F0 | – | 0 / 0 |
| May 28, 1996 | F0 | Delta | 0 / 0 |
| Jul 28, 2026 | EFU | Kanosh | 0 / 0 |
Most damaging storms
| Date | Type | Near | Damage |
|---|---|---|---|
| Aug 18, 2021 | Flood | Delta Muni Arpt | $1M |
| Sep 1, 2012 | Flash Flood | Oak City | $100K |
| Jul 5, 2011 | Flood | Borden | $50K |
| Jul 17, 2023 | Thunderstorm Wind | Fillmore Arpt | $36K |
| May 31, 2023 | Thunderstorm Wind | Clear Lake | $30K |
| Aug 31, 2013 | Flash Flood | Fillmore | $20K |
Source: NOAA Storm Events Database, county-based reports through Jul 28, 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 Millard 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 Millard 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; 5,045 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 |
|---|---|---|
| Sanpete County | 8 | |
| Sevier County | 7 | |
| Juab County | 7 | |
| White Pine County, NV | 5 | |
| Beaver County | 7 | |
| Lincoln County, NV | 6 |
Common questions about Millard County
What is the biggest natural hazard in Millard County?
Earthquake has the highest expected yearly losses in Millard County, about $2.1 million a year in FEMA's estimate. Inland flooding is second at $1.8 million.
How many federal disasters has Millard County had?
Millard County has been included in 9 federal disaster or emergency declarations for natural events since 1977, including 3 major disasters. The most recent was Widemouth 2 Fire in August 2026.
Is Millard County a high-risk place to live?
Its overall rating is Very Low, 17th 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 Millard County?
Standard home insurance does not cover flooding. About 1 in 1000 homes in Millard 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 Millard County had?
NOAA records list 3 tornadoes in Millard County since 1950. The strongest was an F0 tornado on June 7, 1989. The weather service has also logged 6 hail reports and 10 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.