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Clay County, Minnesota

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

Relatively Low overall risk
14th of 87highest risk in Minnesota
$42Mexpected losses a year
27federal declarations
1 in 143homes with flood insurance
Photo: U.S. Geological Survey, public domain

Clay County, Minnesota has a relatively low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 74% of US counties. It ranks 14th of 87 counties in Minnesota. The costliest hazards here are inland flooding, cold waves and tornadoes. FEMA estimates about $42 million a year in expected losses, or roughly $643 per resident. Since 1966 it has been included in 27 federal disaster or emergency declarations for natural events (23 major disasters). The most recent was in July 2023 (severe storms and flooding). Fewer than 1 in 100 homes here carry federal flood insurance (177 policies). Since 1978, federal flood insurance has paid about $14 million on 1,358 claims here, including $6.3 million for floods in 2009.

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

Top risks in Clay County

$28.3 million a yearExpected losses. Damaging events about 2 times a year.
  • 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.

Cold wave

Moderate
$6.6 million a yearExpected losses. Damaging events about 18 times a year.
  • Insulate pipes in outside walls, crawl spaces and garages.
  • Know how to shut off the main water valve.
$2.5 million a yearExpected losses. Damaging events about once every 1 years.
  • Pick a shelter spot: a basement, or an inside room on the lowest floor with no windows.
  • Turn on emergency alerts on your phone and keep a weather radio.
HazardRatingScoreExpected loss a year
Inland floodingModerate82.4
$28M
Cold waveModerate85.1
$7M
TornadoLow62.0
$2M
Strong windModerate78.8
$2M
HailModerate80.5
$1M
Winter weatherHigh95.8
$1M
Heat waveVery Low38.7
$278K
DroughtLow49.4
$180K
WildfireLow66.0
$165K
LightningLow30.4
$142K
Ice stormLow50.9
$115K
EarthquakeVery Low14.8
$20K
LandslideVery Low47.3
$2K

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 very low and community resilience is relatively high in FEMA's measures.

Federal disaster history

Recent disasters nationwide ›

Declarations by decade

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

By type

Flood15
Severe Storm10
Drought1
Hurricane1

Most recent

Jul 19, 2023Severe Storms and FloodingMajor disaster
Jun 12, 2019Severe Winter Storm, Straight-Line Winds, and FloodingMajor disaster
May 10, 2011Severe Storms and FloodingMajor disaster
Apr 19, 2010FloodingMajor disaster
Mar 19, 2010FloodingEmergency
Apr 9, 2009Severe Storms and FloodingMajor disaster
Mar 26, 2009Severe Storms and FloodingEmergency
Jun 5, 2006FloodingMajor disaster
Jan 4, 2006Severe Winter StormMajor disaster
Sep 13, 2005Hurricane Katrina EvacuationEmergency
Show all 27
Jun 14, 2002Severe Storms, Flooding and TornadoesMajor disaster
May 16, 2001Severe Winter Storms, Flooding, and TornadoesMajor disaster
Jun 27, 2000Severe Storms and FloodingMajor disaster
Jul 28, 1999Severe Storms, Winds, and FloodingMajor disaster
Apr 8, 1997Severe Flooding, High Winds,Severe StormsMajor disaster
Jan 16, 1997Severe Winter StormsMajor disaster
Jun 1, 1996Flooding and Severe StormsMajor disaster
Aug 18, 1995Severe Thunderstorms, Winds, Flooding, Tornadoes, and HeatMajor disaster
Jun 11, 1993Severe Storms, Tornadoes & FloodingMajor disaster
May 8, 1989FloodingMajor disaster
Apr 30, 1979Severe Storms & FloodingMajor disaster
Apr 22, 1978Storms, Ice Jams, Snowmelt & FloodingMajor disaster
Jun 17, 1976DroughtEmergency
Jul 17, 1975Severe Storms, Tornadoes & FloodingMajor disaster
Jun 10, 1974Heavy Rains & FloodingMajor disaster
Apr 18, 1969FloodingMajor disaster
Mar 22, 1966FloodingMajor disaster

Minnesota also had 26 statewide declarations that did not name single counties.

Storm history since 1957

Tornado risk by county ›

The National Weather Service has logged 505 storm reports in Clay County since 1957, with 1 death and 5 injuries and about $21.3 million in reported damage. The strongest on record here was an F5 tornado on June 20, 1957.

43tornadoes
222hail reports, largest 3 inches
185damaging thunderstorm winds
51floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Jun 20, 1957F5–0 / 0
Jun 28, 1975F4–0 / 0
Jun 28, 1975F3–0 / 0
Jun 5, 1996F2Hitterdal0 / 0
Jun 9, 1959F2–0 / 0

Most damaging storms

DateTypeNearDamage
Sep 21, 2007HailMoorhead$10M
Jun 19, 2000Flash FloodMoorhead$5M
Apr 1, 2006FloodCountywide$996K
Jul 11, 2017Thunderstorm WindUlen$600K
Jun 19, 2000Flash FloodDilworth$500K
Jul 11, 2017Thunderstorm WindHitterdal$400K

Source: NOAA Storm Events Database, county-based reports through Jun 29, 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 Clay County

Check your address flood zone ›
0.7%of homes have federal flood insurance (177 policies)
10.4%of homes in mapped high-risk flood zones are insured
$13.8 millionpaid on 1,358 flood claims since 1978
2009costliest year, with $6.3 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 Clay County

$265,500median home value (Minnesota $329,300, US $332,700)
1981median year homes were built (Minnesota 1979, US 1980)
50%of homes built before 1980, before many modern wind, quake and flood building rules
2.2%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; 27,559 housing units.

Compare in Minnesota

All 87 ›
Largest countiesOverall riskTop hazard
Hennepin CountyHighInland flooding
Ramsey CountyHighInland flooding
Dakota CountyModerateInland flooding
Anoka CountyModerateInland flooding
Washington CountyModerateInland flooding
St. Louis CountyModerateCold wave
Olmsted CountyModerateInland flooding
Stearns CountyModerateInland flooding

Neighboring counties

CountyOverall riskDeclarations
Cass County, NDModerate33
Otter Tail CountyLow15
Becker CountyVery Low17
Richland County, NDVery Low35
Wilkin CountyVery Low23
Norman CountyVery Low30

Cities in Clay County

Common questions about Clay County

What is the biggest natural hazard in Clay County?

Inland flooding has the highest expected yearly losses in Clay County, about $28.3 million a year in FEMA's estimate. Cold wave is second at $6.6 million.

How many federal disasters has Clay County had?

Clay County has been included in 27 federal disaster or emergency declarations for natural events since 1966, including 23 major disasters. The most recent was Severe Storms and Flooding in July 2023.

Is Clay County a high-risk place to live?

Its overall rating is Relatively Low, 14th highest of 87 in Minnesota. 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 Clay County?

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

NOAA records list 43 tornadoes in Clay County since 1950. The strongest was an F5 tornado on June 20, 1957. The weather service has also logged 222 hail reports and 51 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.