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Columbia County, Washington

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

Very Low overall risk
38th of 39highest risk in Washington
$4Mexpected losses a year
14federal declarations
1 in 48homes with flood insurance
Photo: U.S. Geological Survey, public domain

Columbia County, Washington has a very low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is lower than 91% of US counties. It ranks 38th of 39 counties in Washington. The costliest hazards here are inland flooding, wildfires and cold waves. FEMA estimates about $3.9 million a year in expected losses, or roughly $989 per resident. Since 1964 it has been included in 14 federal disaster or emergency declarations for natural events (11 major disasters). The most recent was in April 2021 (severe winter storm, straight-line winds, flooding, landslides and mudslides). Only 40 homes here carry federal flood insurance. Since 1978, federal flood insurance has paid about $501,000 on 56 claims here.

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

Top risks in Columbia County

$3.2 million a yearExpected losses. Damaging events about once every 6 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.
$203,712 a yearExpected losses. Damaging events about once every 355 years.
  • Clear dry plants and debris within 5 feet of the house.
  • Get home insurance quotes early; availability varies by area.

Cold wave

Very Low
$138,103 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.
HazardRatingScoreExpected loss a year
Inland floodingVery Low30.7
$3M
WildfireLow73.3
$204K
Cold waveVery Low15.0
$138K
EarthquakeVery Low34.0
$94K
Heat waveVery Low25.6
$92K
Ice stormLow43.3
$56K
Strong windVery Low4.8
$31K
HailVery Low8.1
$21K
TornadoVery Low3.2
$7K
Winter weatherVery Low8.4
$6K
LightningVery Low1.7
$5K
LandslideLow67.3
$4K
AvalancheLow69.2
$4K
DroughtVery Low14.9
$479

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 Columbia County. 2020s bar runs to November 2026.

By type

Flood7
Severe Storm3
Fire2
Volcanic Eruption1
Coastal Storm1

Most recent

Apr 8, 2021Severe Winter Storm, Straight-Line Winds, Flooding, Landslides, and MudslidesMajor disaster
Apr 23, 2020Severe Storms, Flooding, Landslides, and MudslidesMajor disaster
Apr 21, 2017Severe Winter Storms, Flooding, Landslides, MudslidesMajor disaster
Mar 2, 2009Severe Winter Storm and Record and Near Record SnowMajor disaster
Jan 30, 2009Severe Winter Storm, Landslides, Mudslides, and FloodingMajor disaster
Aug 22, 2006Columbia Fire ComplexFire management
Sep 7, 2005Hurricane Katrina EvacuationEmergency
Aug 7, 2005School FireFire management
Jan 17, 1997Severe Winter Storms, Land & Muds Slides,FloodingMajor disaster
Feb 9, 1996High Winds, Severe Storms and FloodingMajor disaster
Show all 14
May 21, 1980Volcanic Eruption, Mt. St. HelensMajor disaster
Jan 25, 1974Severe Storms, Snowmelt & FloodingMajor disaster
Feb 9, 1971Heavy Rains, Melting Snows & FloodingMajor disaster
Dec 29, 1964Heavy Rains & FloodingMajor disaster

Washington also had 51 statewide declarations that did not name single counties.

Storm history since 1966

Tornado risk by county ›

The National Weather Service has logged 26 storm reports in Columbia County since 1966 and about $152,500 in reported damage. The strongest on record here was an F2 tornado on March 14, 1966.

2tornadoes
10hail reports, largest 1.5 inches
8damaging thunderstorm winds
4floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Mar 14, 1966F2–0 / 0
Jan 16, 2000F1Dayton0 / 0

Most damaging storms

DateTypeNearDamage
Jan 16, 2000TornadoDayton$100K
Jul 8, 2012Thunderstorm WindDayton$50K
Mar 14, 1966Tornado–$3K

Source: NOAA Storm Events Database, county-based reports through Mar 14, 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 Columbia County

Check your address flood zone ›
2.1%of homes have federal flood insurance (40 policies)
0%of homes in mapped high-risk flood zones are insured
$501,325paid on 56 flood claims since 1978
2026costliest year, with $282,284 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 Columbia County

$271,200median home value (Washington $564,600, US $332,700)
1953median year homes were built (Washington 1985, US 1980)
73%of homes built before 1980, before many modern wind, quake and flood building rules
11.6%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; 2,217 housing units.

Compare in Washington

All 39 ›
Largest countiesOverall riskTop hazard
King CountyVery HighEarthquake
Pierce CountyHighEarthquake
Snohomish CountyHighEarthquake
Spokane CountyModerateInland flooding
Clark CountyModerateInland flooding
Thurston CountyHighEarthquake
Kitsap CountyModerateEarthquake
Yakima CountyModerateInland flooding

Neighboring counties

CountyOverall riskDeclarations
Franklin CountyLow9
Umatilla County, ORModerate13
Walla Walla CountyLow11
Whitman CountyVery Low16
Wallowa County, ORVery Low9
Garfield CountyVery Low13

Common questions about Columbia County

What is the biggest natural hazard in Columbia County?

Inland flooding has the highest expected yearly losses in Columbia County, about $3.2 million a year in FEMA's estimate. Wildfire is second at $203,712.

How many federal disasters has Columbia County had?

Columbia County has been included in 14 federal disaster or emergency declarations for natural events since 1964, including 11 major disasters. The most recent was Severe Winter Storm, Straight-Line Winds, Flooding, Landslides, and Mudslides in April 2021.

Is Columbia County a high-risk place to live?

Its overall rating is Very Low, 38th highest of 39 in Washington. 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 Columbia County?

Standard home insurance does not cover flooding. About 1 in 48 homes in Columbia 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 Columbia County had?

NOAA records list 2 tornadoes in Columbia County since 1950. The strongest was an F2 tornado on March 14, 1966. The weather service has also logged 10 hail reports and 4 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.