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Umatilla County, Oregon

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

Relatively Moderate overall risk
17th of 36highest risk in Oregon
$40Mexpected losses a year
13federal declarations
1 in 143homes with flood insurance
Photo: U.S. Geological Survey, public domain

Umatilla County, Oregon has a moderate overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 82% of US counties. It ranks 17th of 36 counties in Oregon. The costliest hazards here are inland flooding, cold waves and wildfires. FEMA estimates about $40 million a year in expected losses, or roughly $501 per resident. Since 1964 it has been included in 13 federal disaster or emergency declarations for natural events (7 major disasters). The most recent was in August 2026 (Hagen Fire). Fewer than 1 in 100 homes here carry federal flood insurance (213 policies). Since 1978, federal flood insurance has paid about $1.8 million on 94 claims here, including $1.3 million for floods in 2020.

FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.

Top risks in Umatilla County

$17.7 million a yearExpected losses. Damaging events about once every 2 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.
$9 million a yearExpected losses. Damaging events about once every 4 years.
  • Insulate pipes in outside walls, crawl spaces and garages.
  • Know how to shut off the main water valve.

Wildfire

Moderate
$4.3 million a yearExpected losses. Damaging events about once every 190 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
Inland floodingModerate81.5
$18M
Cold waveHigh94.4
$9M
WildfireModerate96.2
$4M
EarthquakeLow87.2
$3M
Heat waveModerate86.6
$2M
Strong windModerate83.3
$1M
Ice stormHigh93.4
$1M
DroughtModerate82.8
$913K
Winter weatherHigh89.6
$329K
HailLow52.0
$238K
LightningLow55.2
$236K
TornadoVery Low13.0
$91K
LandslideModerate90.3
$48K
AvalancheLow76.3
$19K
Volcanic activityVery Low72.0
$102

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 very low in FEMA's measures.

Federal disaster history

Recent disasters nationwide ›

Declarations by decade

Federal declarations for natural events that included Umatilla County. 2020s bar runs to November 2026.

By type

Fire5
Flood4
Severe Storm2
Drought1
Coastal Storm1

Most recent

Aug 9, 2026Hagen FireFire management
Jul 16, 2026Lower Dry Creek FireFire management
Jan 1, 2025WildfiresMajor disaster
Jul 21, 2024Battle Mountain Fire ComplexFire management
Apr 3, 2020Severe Storms, Flooding, Landslides, and MudslidesMajor disaster
Jul 9, 2019Severe Storms, Flooding, Landslides, and MudslidesMajor disaster
Sep 7, 2005Hurricane Katrina EvacuationEmergency
Feb 19, 2004Severe Winter StormsMajor disaster
Aug 15, 2001Or Bridge Creek Fires 2375Fire management
Jan 23, 1997Severe Winter Storms, Land and Mudslides, FloodingMajor disaster
Show all 13
Feb 9, 1996High Winds, Severe Storms and FloodingMajor disaster
Apr 29, 1977DroughtEmergency
Dec 24, 1964Heavy Rains & FloodingMajor disaster

Oregon also had 42 statewide declarations that did not name single counties.

Storm history since 1958

Tornado risk by county ›

The National Weather Service has logged 252 storm reports in Umatilla County since 1958, with 1 death and 6 injuries and about $58.2 million in reported damage. The strongest on record here was an EF1 tornado on May 6, 2009 near Cayuse.

9tornadoes
89hail reports, largest 3 inches
110damaging thunderstorm winds
23floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
May 6, 2009EF1Cayuse0 / 0
May 6, 2022EF1Bingham Spgs0 / 0
May 1, 1991F0–0 / 0
Jul 9, 1995F0Se of Hermiston0 / 0
Jul 13, 2002F0Pendleton Arpt0 / 0

Most damaging storms

DateTypeNearDamage
Feb 6, 2020FloodMilton Freewater$40M
Apr 9, 2019FloodSparks$9M
Apr 10, 2019FloodPendleton$5M
Jun 1, 2010Heavy RainMilton Freewater$4M
Oct 28, 2003WildfireEcho$240K
Apr 26, 2005Flash FloodHermiston$170K

Source: NOAA Storm Events Database, county-based reports through Apr 22, 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 Umatilla County

Check your address flood zone ›
0.7%of homes have federal flood insurance (213 policies)
17.9%of homes in mapped high-risk flood zones are insured
$1.8 millionpaid on 94 flood claims since 1978
2020costliest year, with $1.3 million 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 Umatilla County

$282,600median home value (Oregon $477,600, US $332,700)
1979median year homes were built (Oregon 1981, US 1980)
52%of homes built before 1980, before many modern wind, quake and flood building rules
18.1%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; 32,199 housing units.

Compare in Oregon

All 36 ›
Largest countiesOverall riskTop hazard
Multnomah CountyHighEarthquake
Washington CountyHighEarthquake
Clackamas CountyHighEarthquake
Lane CountyHighInland flooding
Marion CountyHighEarthquake
Jackson CountyModerateInland flooding
Deschutes CountyModerateInland flooding
Linn CountyModerateEarthquake

Neighboring counties

CountyOverall riskDeclarations
Benton County, WAModerate18
Walla Walla County, WALow11
Union CountyLow8
Morrow CountyVery Low8
Wallowa CountyVery Low9
Grant CountyVery Low13
Columbia County, WAVery Low14

Common questions about Umatilla County

What is the biggest natural hazard in Umatilla County?

Inland flooding has the highest expected yearly losses in Umatilla County, about $17.7 million a year in FEMA's estimate. Cold wave is second at $9 million.

How many federal disasters has Umatilla County had?

Umatilla County has been included in 13 federal disaster or emergency declarations for natural events since 1964, including 7 major disasters. The most recent was Hagen Fire in August 2026.

Is Umatilla County a high-risk place to live?

Its overall rating is Relatively Moderate, 17th highest of 36 in Oregon. 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 Umatilla County?

Standard home insurance does not cover flooding. About 1 in 143 homes in Umatilla 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 Umatilla County had?

NOAA records list 9 tornadoes in Umatilla County since 1950. The strongest was an EF1 tornado on May 6, 2009 near Cayuse. The weather service has also logged 89 hail reports and 23 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.