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Millard County, Utah

Natural disaster risk, federal disaster history and flood insurance facts.

Very Low overall risk
17th of 29highest risk in Utah
$7Mexpected losses a year
9federal declarations
1 in 1000homes with flood insurance
Photo: U.S. Geological Survey, CC0

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

$2.1 million a yearExpected losses. Damaging events about once every 70 years.
  • Ask whether an older house is bolted to its foundation.
  • Consider separate earthquake insurance where risk is high.
$1.8 million a yearExpected losses. Damaging events about once every 3 years.
  • 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.

Wildfire

Moderate
$1.5 million a yearExpected losses. Damaging events about once every 320 years.
  • Clear dry plants and debris within 5 feet of the house.
  • Get home insurance quotes early; availability varies by area.
HazardRatingScoreExpected loss a year
EarthquakeLow83.2
$2M
Inland floodingVery Low16.3
$2M
WildfireModerate91.2
$1M
DroughtModerate79.3
$806K
Winter weatherHigh92.5
$449K
Heat waveVery Low37.4
$183K
LightningLow38.3
$136K
Strong windVery Low11.5
$78K
TornadoVery Low8.1
$41K
Cold waveVery Low5.4
$20K
AvalancheLow73.4
$8K
Ice stormVery Low10.4
$5K
HailVery Low1.8
$2K
LandslideVery Low26.0
$197
Volcanic activityVery Low73.9
$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

Fire4
Flood3
Drought1
Coastal Storm1

Most recent

Aug 2, 2026Widemouth 2 FireFire management
Jun 28, 2020Canal FireFire management
Jun 27, 2012Clay Springs FireFire management
Aug 8, 2011FloodingMajor disaster
Jul 7, 2007Milford Flat FireFire management
Sep 5, 2005Hurricane Katrina EvacuationEmergency
Aug 17, 1984Severe Storms, Mudslides, Landslides & FloodingMajor disaster
Apr 30, 1983Severe Storms, Landslides & FloodingMajor disaster
Jan 20, 1977DroughtEmergency

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.

3tornadoes
6hail reports, largest 1.5 inches
60damaging thunderstorm winds
10floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Jun 7, 1989F0–0 / 0
May 28, 1996F0Delta0 / 0
Jul 28, 2026EFUKanosh0 / 0

Most damaging storms

DateTypeNearDamage
Aug 18, 2021FloodDelta Muni Arpt$1M
Sep 1, 2012Flash FloodOak City$100K
Jul 5, 2011FloodBorden$50K
Jul 17, 2023Thunderstorm WindFillmore Arpt$36K
May 31, 2023Thunderstorm WindClear Lake$30K
Aug 31, 2013Flash FloodFillmore$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 ›
0.1%of homes have federal flood insurance (3 policies)
0%of homes in mapped high-risk flood zones are insured
$772,031paid on 48 flood claims since 1978
1983costliest year, with $677,908 paid

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

$284,700median home value (Utah $489,400, US $332,700)
1974median year homes were built (Utah 1992, US 1980)
60%of homes built before 1980, before many modern wind, quake and flood building rules
6.2%of homes are mobile homes, which are the least safe in tornadoes and high winds

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 countiesOverall riskTop hazard
Salt Lake CountyHighEarthquake
Utah CountyHighEarthquake
Davis CountyModerateEarthquake
Weber CountyModerateEarthquake
Washington CountyModerateWildfire
Cache CountyLowEarthquake
Tooele CountyLowWildfire
Box Elder CountyLowEarthquake

Neighboring counties

CountyOverall riskDeclarations
Sanpete CountyVery Low8
Sevier CountyVery Low7
Juab CountyVery Low7
White Pine County, NVVery Low5
Beaver CountyVery Low7
Lincoln County, NVVery Low6

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.