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Risk: Very Low

Millard County, UT Environment & Hazard Risk

Very Low natural hazard risk, led by winter weather. 133 storm events since 1996.

Expected yearly loss
$7.1M
Very Low nationally
Storm events since 1996
133
Most often thunderstorm wind
Flood insurance policies
3
0.1% of homes
Hurricanes nearby
0
Since 1851

Natural hazard risk

FEMA National Risk Index, December 2025

Overall risk

Very Low

Score 22.2 of 100

Social vulnerability

Relatively Moderate

Score 52.0 of 100

Community resilience

Relatively Moderate

Score 49.0 of 100

Community resilience runs the other way: a higher rating means a community can recover faster.

Building value exposed: $4.4B · Agriculture value exposed: $232M · Risk-adjusted yearly loss: $8.1M

Risk by hazard

  • Winter weatherRelatively High$449K/yr expected annual loss, about 16 events a year
  • WildfireRelatively Moderate$1.5M/yr expected annual loss, about once every 322 years
  • EarthquakeRelatively Low$2.1M/yr expected annual loss, about once every 71 years
  • DroughtRelatively Moderate$806K/yr expected annual loss, about 76 events a year
  • Volcanic activityVery Low$128/yr expected annual loss, about once every 5,000 years
  • AvalancheRelatively Low$8,435/yr expected annual loss, about once every 6 years
  • LightningRelatively Low$136K/yr expected annual loss, about 34 events a year
  • Heat waveVery Low$183K/yr expected annual loss, about 1.7 events a year
  • LandslideVery Low$197/yr expected annual loss, about 2.3 events a year
  • Strong windVery Low$78.1K/yr expected annual loss, about once every 4 years
  • Ice stormVery Low$4,858/yr expected annual loss, about once every 67 years
  • TornadoVery Low$40.8K/yr expected annual loss, about once every 11 years
  • Cold waveVery Low$19.6K/yr expected annual loss, about once every 23 years
  • HailVery Low$2,331/yr expected annual loss, about once every 34 years

Bars show the national percentile score (0 to 100) for each hazard. Dollar figures are expected annual losses to buildings, people and crops. Not rated here: coastal flooding, hurricane, riverine flooding, tsunami.

Flood risk and insurance

National Flood Insurance Program and FEMA flood maps

Check the flood zone for an address

Homes with flood insurance
3 of 4,622 (0.1%)
Homes in high-risk flood zones
0
Flood claims since 1978
48
Claims paid since 1978
$774K

Storm history

Since 1996: 133 events, 8 deaths, $1.7M in damage

  • Thunderstorm Wind48
  • Heavy Snow30
  • High Wind13
  • Wildfire8
  • Flash Flood7
  • Winter Weather5
  • Hail5
  • Winter Storm5
  • Flood3
  • Debris Flow3
Beta

Events per year

Storm events per year in Millard County
2
2
2
2
6
2
1
1
1
2
13
10
32
21
5
22
Beta

3 tornadoes on record (F0 2).

Most damaging storms

Since 1996, ranked by deaths, injuries and damage

  • Dust Storm07/25/2021

    Eastern Juab/Millard Counties

    8 deaths, 10 injured, $300K damage

    What happened

    Thunderstorm outflow winds generated blowing dust with near zero visibility along Interstate 15 near milepost 152 south of Fillmore. This resulted in a multi vehicle pileup with at least 22 vehicles involved, 8 fatalities, and 10 injuries. The nearest mesonet site located 7 miles south of the crash site recorded a wind gust to 32 mph around the time of the crash, at approximately 430 PM MDT.

  • Flood08/18/2021

    (U24)delta Muni Arpt, Millard County

    $1M damage

    What happened

    Widespread basement flooding occurred in and around Delta. An observer reported a 2-day rainfall total of 5.83 inches.

  • Strong Wind48 kt wind04/01/2026

    Eastern Juab/Millard Counties

    1 injured

    What happened

    A strong wind gust associated with a passing cold front resulted in a semi truck blow over on I-15, which resulted in another car being pinned. Wind speeds were estimated using nearby stations, generally ranging from 35-55mph at the time of occurrence. The truck driver was reported to have sustained minor injuries.

  • Flash Flood09/01/2012

    Oak City, Millard County

    $100K damage

Drinking water

16 community water systems serve about 10,412 people. Violations since 2021.

4 systems had health-based violations, such as a contaminant over the legal limit or a missed treatment step. 4 systems had a violation of any kind still open at last report.

  • Delta CityServes 3,436 · Groundwater · Local governmentNo health violations
  • Fillmore CityServes 2,816 · Groundwater · Local governmentNo health violations+3 monitoring or reporting
  • Oak City Water SystemServes 660 · Groundwater · Local governmentNo health violations+1 monitoring or reporting
  • Hinckley Town Water SystemServes 630 · Groundwater · Local government5 health violations+7 monitoring or reporting
  • Kanosh Town Water SystemServes 555 · Groundwater · Local government1 health violation+3 monitoring or reporting
  • Deseret - Oasis SsdServes 490 · Groundwater · Local government5 health violations+3 monitoring or reporting
  • Holden Town Water SystemServes 465 · Groundwater · Local governmentNo health violations+2 monitoring or reporting
  • Scipio TownServes 325 · Groundwater · Local government1 health violation+13 monitoring or reporting

Largest systems by population served. Monitoring and reporting violations mean required tests or notices were late or missing, not that the water was unsafe.

Pollution sites

0 Superfund sites and 5 toxic release facilities in Millard County

Superfund sites

None in this county.

Toxic release facilities

Total: 2.4 million lbs in 2024, 574,511 lbs to air.

Superfund sitesToxic release facilitiesEPA inspections and enforcementAir toxics cancer risk18 historic places

Frequently asked questions

How risky is Millard County for natural disasters?
FEMA rates Millard County very low for overall natural hazard risk, with expected losses of $7.1M a year. The highest-rated hazards are winter weather (relatively high), wildfire (relatively moderate), earthquake (relatively low).
What storms are most common in Millard County?
Since 1996, NOAA recorded 133 storm events affecting Millard County, most often thunderstorm wind (48), heavy snow (30), high wind (13).
How many tornadoes have hit Millard County?
3 tornadoes have been recorded in Millard County since 1950.
How many homes in Millard County have flood insurance?
3 residential flood insurance policies are in force in Millard County, covering about 0.1% of homes. The program has paid $774K on 48 claims here since 1978.
What is the weather like in Millard County?
At Deseret, average highs reach 95°F in Jul and lows fall to 16°F in Dec, with 8.3 inches of rain a year (1991-2020 normals).

Source: FEMA (National Risk Index, NFIP), NOAA (Storm Events, HURDAT2, Climate Normals), EPA · Last updated 08/01/2026 · Storm counts include events in forecast zones that touch the county. This product uses the FEMA OpenFEMA API, but is not endorsed by FEMA.

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