County Hazards

States › Minnesota › Koochiching County

Koochiching County, Minnesota

Recorded hazard history: storm events since 1950, federal disaster declarations since 1953, flood insurance claims since 1978, and FEMA's risk index.

FIPS 27071 · 11,941 residents (2021) · 3,105 sq mi · dominant hazard Hail

Hail · 149Tornado · 6Flood · 7Wind · 105Winter · 81
1959-06-04: Hail1961-08-02: Hail1962-07-24: Hail1965-07-01: Hail1966-07-31: Hail1968-08-05: Hail1971-08-16: Hail1973-08-06: Hail1973-07-11: Hail1973-06-25: Hail1974-07-01: Hail1976-06-09: Hail1976-07-22: Hail1978-08-17: Hail1978-08-21: Hail1979-06-14: Hail1982-07-05: Hail1983-09-08: Hail1983-09-08: Hail1983-09-08: Hail1983-09-08: Hail1983-08-27: Hail1983-08-28: Hail1983-09-08: Hail1984-07-02: Hail1984-06-12: Hail1984-07-16: Hail1984-07-08: Hail1984-07-08: Hail1985-07-03: Hail1985-05-04: Hail1985-05-04: Hail1985-04-21: Hail1985-04-21: Hail1985-06-08: Hail1986-06-26: Hail1986-06-21: Hail1988-06-12: Hail1989-06-29: Hail1989-07-05: Hail1990-09-11: Hail1990-09-11: Hail1991-06-25: Hail1991-06-25: Hail1991-06-09: Hail1992-06-27: Hail1992-06-27: Hail1992-06-27: Hail1992-06-27: Hail1992-07-15: Hail1996-05-19: Hail1996-05-19: Hail1996-08-21: Hail1996-08-21: Hail1996-08-21: Hail1996-10-14: Hail1996-08-13: Hail1996-08-13: Hail1996-08-13: Hail1998-08-16: Hail1998-05-18: Hail1998-05-18: Hail1998-05-18: Hail1998-05-18: Hail1998-05-18: Hail1998-05-18: Hail1998-05-15: Hail1998-08-16: Hail1998-05-15: Hail1999-08-15: Hail1999-08-15: Hail1999-08-15: Hail1999-08-15: Hail1999-08-15: Hail1999-06-09: Hail1999-06-06: Hail1999-06-06: Hail1999-06-06: Hail1999-06-06: Hail2000-06-30: Hail2000-06-30: Hail2000-06-30: Hail2000-06-30: Hail2000-06-30: Hail2000-09-09: Hail2000-07-01: Hail2001-05-17: Hail2001-07-17: Hail2001-08-14: Hail2002-04-16: Hail2002-06-25: Hail2002-06-09: Hail2002-07-01: Hail2002-08-26: Hail2003-07-14: Hail2003-07-14: Hail2003-07-06: Hail2005-04-18: Hail2005-04-18: Hail2005-04-18: Hail2005-05-05: Hail2006-06-26: Hail2007-06-23: Hail2007-09-21: Hail2008-05-25: Hail2008-05-25: Hail2008-07-31: Hail1955-09-17: Tornado1956-06-23: Tornado1973-09-01: Tornado1981-07-16: Tornado1985-06-08: Tornado1993-08-09: Tornado2010-07-01: Flood2014-07-01: Flood2014-06-14: Flood2022-05-10: Flood2022-07-01: Flood2022-06-01: Flood1957-07-13: Wind1958-07-13: Wind1958-07-13: Wind1962-06-28: Wind1962-05-17: Wind1962-08-05: Wind1967-07-10: Wind1968-08-05: Wind1971-08-16: Wind1973-07-07: Wind1976-08-19: Wind1976-08-19: Wind1976-06-12: Wind1976-06-09: Wind1976-07-19: Wind1977-05-28: Wind1978-07-05: Wind1978-08-17: Wind1979-09-16: Wind1983-09-08: Wind1983-09-08: Wind1983-09-08: Wind1983-08-29: Wind1983-08-29: Wind1983-08-29: Wind1983-08-27: Wind1983-08-29: Wind1983-08-29: Wind1983-08-29: Wind1983-06-22: Wind1985-08-09: Wind1985-06-25: Wind1985-04-21: Wind1985-04-21: Wind1985-04-21: Wind1987-07-22: Wind1987-07-23: Wind1987-07-17: Wind1988-06-14: Wind1988-06-14: Wind1989-07-05: Wind1989-07-05: Wind1990-07-28: Wind1991-06-09: Wind1996-08-21: Wind1996-08-21: Wind1999-07-29: Wind1999-06-25: Wind1999-06-06: Wind1999-06-09: Wind1999-06-09: Wind2001-07-31: Wind2001-08-08: Wind2001-08-08: Wind2002-06-09: Wind2003-07-02: Wind2004-07-11: Wind2005-06-23: Wind2005-06-23: Wind2007-07-11: Wind2007-07-11: Wind2007-07-11: Wind2008-05-17: Wind2008-07-31: Wind2008-07-11: Wind2008-07-11: Wind2008-07-11: Wind2008-07-11: Wind2010-05-01: Wind2011-07-04: Wind2011-07-07: Wind2011-07-17: Wind2014-07-21: Wind2014-07-21: Wind2014-07-22: Wind2014-07-21: Wind2014-07-21: Wind2014-07-21: Wind2014-07-21: Wind2014-07-21: Wind2014-07-21: Wind2016-06-25: Wind2016-07-20: Wind2018-07-04: Wind2018-07-08: Wind2018-07-08: Wind2018-07-08: Wind2018-07-08: Wind2018-07-08: Wind2018-08-27: Wind2019-07-15: Wind2019-07-17: Wind2019-07-17: Wind2019-07-17: Wind2019-07-17: Wind2021-07-23: Wind2022-05-30: Wind2022-05-30: Wind2022-07-17: Wind2022-07-17: Wind2022-06-20: Wind2025-07-04: Wind
Koochiching County within Minnesota. Dots: HailTornadoFloodWind event locations in the kept record. Boundaries: US Census Bureau.

NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders. NCEI storm records through 30 Jun 2026; OpenFEMA declarations refreshed 1 Oct 2026; NFIP claims as of 8 Sep 2026.

Koochiching County, Minnesota, has 466 weather events in the NCEI Storm Events record since 1950, most of them hail.

That is 15.0 events per 100 square miles, below the Minnesota figure of 71.0, and 390.3 per 10,000 residents against 99.0 statewide.

11 events fall in the 12 months to 30 Jun 2026. NCEI attributes 2 deaths and 5 injuries to events in the county, with property damage estimated at $5.8M and crop damage at $1K.

FEMA has designated the county in 14 federal disaster declarations since 1953; the most recent is Severe Storms, Straight-Line Winds, And Flooding (major disaster, 13 Jul 2022).

National Flood Insurance Program policyholders in the county filed 17 claims since 1978, of which 12 were paid, totalling $322K (about $27K per paid claim). FEMA counts 23 residential flood policies in force.

FEMA's National Risk Index rates the county's overall risk as "Very Low" and its expected annual loss as "Very Low" ($8.8M a year across 18 hazards).

11events, last 12 monthsto 30 Jun 2026
466events since 19502 deaths, 5 injuries recorded
14disaster declarationslast 13 Jul 2022
17NFIP flood claims$322K paid

Compared with Minnesota and the United States

MeasureKoochiching CountyMinnesotaUS
Recorded events since 195046656,5241,977,440
Events per 100 square miles15.071.056.0
Events per 10,000 residents390.399.059.6
Events in the last 12 months111,95662,008
Deaths recorded by NCEI229326,435
Property damage (NCEI estimates)$5.8M$5.9B$575B
NFIP claims per 1,000 residents1.42.28.1
Average paid NFIP claim$27K$16K$43K
Claims per 100 policies in force, last 10 years39.113.916.1

County-recorded events plus zone-recorded events whose forecast zone is named for the county. State and US rows include events recorded only by forecast zone. Rates use 2021 Census population and land area.

Events by decade

Hail: 1Tornado: 2Wind: 3
Hail: 5Wind: 5
Hail: 11Tornado: 1Wind: 11
Hail: 24Tornado: 2Wind: 23
Hail: 49Tornado: 1Wind: 12Winter: 10Cold: 1Lightning: 2
Hail: 31Flood: 1Wind: 17Winter: 21Cold: 11Drought: 16Lightning: 3
Hail: 23Flood: 3Wind: 27Winter: 27Cold: 26Drought: 10
Hail: 5Flood: 3Wind: 7Winter: 23Cold: 27Drought: 22
61950s101960s231970s491980s751990s1002000s1162010s872020s
Recorded events in Koochiching County by decade and hazard group. HailTornadoFloodWindWinterColdDroughtLightning NCEI recorded only tornadoes, hail and thunderstorm wind before 1996.

Trend: 245 events in the 20 years to 2025 against 135 in the 20 years before. Reporting practice changed in 1996 and again with automated reports in the 2000s, so decade totals measure the record as much as the weather.

Events by type

Hail149
Wind105
Winter81
Cold65
Drought48
Flood7
Tornado6
Lightning5
HazardEventsDeathsShare of state's events
■ Hail149—0.9%detail
■ Wind105—0.7%detail
■ Winter81—0.7%detail
■ Cold65—1.5%
■ Drought48—3.3%
■ Flood7—0.3%
■ Tornado620.2%
■ Lightning5—1.7%

Hazard pages exist for hail, tornado, flood, wind and winter where the county has at least 10 recorded events. "Other" covers heavy rain, debris flow, dust, funnel clouds and similar reports.

Largest recorded events

DateEvent typeGroupMagnitudeProperty damageCrop damageDeathsInjuriesGeography
9 Aug 1993TornadoTornadoF0$50K—2—County
1 Sep 1973TornadoTornadoF2$250K——5County
15 May 1998HailHail3.00 in$3.0M———County
1 Jul 2022FloodFlood—$2.4M———County

Ranked by deaths, then injuries, then NCEI's damage estimate. Deaths and injuries are NCEI counts (direct plus indirect); no personal details are recorded here.

Federal disaster declarations

DeclaredNumberTypeIncidentTitlePrograms
13 Jul 2022DR-4659Major disasterFloodSevere Storms, Straight-Line Winds, And FloodingPublic assistance
7 Apr 2020DR-4531Major disasterBiologicalCovid-19 PandemicIndividual assistance, Public assistance
7 Apr 2020DR-4531Major disasterBiologicalCovid-19 PandemicIndividual assistance, Public assistance
13 Mar 2020EM-3453EmergencyBiologicalCovid-19Public assistance
13 Mar 2020EM-3453EmergencyBiologicalCovid-19Public assistance
5 Sep 2018DR-4390Major disasterFloodSevere Storms, Tornadoes, Straight-Line Winds, And FloodingPublic assistance
21 Jul 2014DR-4182Major disasterFloodSevere Storms, Straight-Line Winds, Flooding, Landslides, And MudslidesPublic assistance
13 Sep 2005EM-3242EmergencyHurricaneHurricane Katrina EvacuationPublic assistance
14 Jun 2002DR-1419Major disasterSevere StormSevere Storms, Flooding And TornadoesIndividual assistance, Public assistance
16 May 2001DR-1370Major disasterFloodSevere Winter Storms, Flooding, And TornadoesIndividual assistance
1 Jun 1996DR-1116Major disasterFloodFlooding And Severe StormsPublic assistance
17 Jun 1976EM-3013EmergencyDroughtDroughtPublic assistance
10 Jun 1974DR-440Major disasterFloodHeavy Rains & FloodingIndividual assistance, Public assistance
22 Jul 1970DR-291Major disasterFloodHeavy Rains & FloodingIndividual assistance, Public assistance

Declarations in which FEMA designated this county, from the OpenFEMA Disaster Declarations Summaries (v2). DR: major disaster; EM: emergency; FM: fire management assistance. Programs show whether individual or public assistance was made available.

Flood insurance claims

197820022026
NFIP claims by year of loss in Koochiching County, 1978 to 2026 (hover for the amount paid).
Claims since 197817
Paid claims12
Total paid$322K
Average paid claim$27K
Repetitive-loss properties0
Residential policies in force230.3% of 8,291 structures
Year of lossClaimsPaid claimsAmount paidAverage paid
202297$278,221$39,746
201454$39,847$9,962
200110$0—
198510$0—
197911$4,290$4,290

OpenFEMA NFIP claims (v3, as of 8 Sep 2026), aggregated by year of loss; amounts are building, contents and increased-cost-of-compliance payments as recorded. Repetitive-loss counts from the NFIP Multiple Loss Properties file (2 Aug 2026); policies in force from the NFIP Residential Penetration Rates file (3 Aug 2026).

National Risk Index

Overall riskVery Lowscore 31.5 of 100
Expected annual loss$8.8MVery Low
Social vulnerabilityRelatively High
Community resilienceVery High
Hazard (NRI)Risk ratingExpected annual loss
Inland floodingRelatively Low$6,041,086
Cold waveRelatively Moderate$2,086,886
HailRelatively Low$174,070
Heat waveVery Low$171,905
LightningVery Low$70,464
DroughtRelatively Low$66,851
Strong windVery Low$51,848
Winter weatherRelatively Low$46,648
TornadoVery Low$19,733
WildfireVery Low$15,572
LandslideRelatively Low$5,517
EarthquakeVery Low$822
Ice stormVery Low$708

FEMA National Risk Index, December 2025 release. Ratings are FEMA's relative comparison of counties; expected annual loss is FEMA's modelled estimate of average yearly building, population and agriculture loss. See how to read the NRI.

Hurricane and tropical storm passes

No HURDAT2 track at tropical-storm strength passes within 100 miles of the county's centre point (through the 2025 season).

ZIP codes with flood claims

ZIP codes whose NFIP claims carry this county's code, with the number of claims. Five or more claims are needed for a ZIP page to be indexed.

Questions and answers

How often does it hail in Koochiching County, MN?

NCEI records 149 hail events in Koochiching County since 1950, in 45 different years; that is about 1.9 recorded events a year. 32 reports were golf-ball size (1.75 in) or larger.

Has Koochiching County had a tornado?

Yes. NCEI records 6 tornadoes in Koochiching County since 1950, 1 of them rated (E)F2 or stronger. Tornado deaths recorded: 2.

When was the last federal disaster declaration for Koochiching County?

13 Jul 2022: Severe Storms, Straight-Line Winds, And Flooding, a major disaster declaration for flood. The county appears in 14 declarations since 1953.

How many flood insurance claims have been filed in Koochiching County, and how much was paid?

17 NFIP claims since 1978, 12 of them paid, for $322K in total. FEMA publishes these figures redacted and aggregated; individual properties are not identified.

Is Koochiching County in the National Risk Index's high-risk band?

FEMA's National Risk Index (December 2025) rates the county "Very Low" for overall risk, "Very Low" for expected annual loss, "Relatively High" for social vulnerability and "Very High" for community resilience. These ratings are FEMA's relative comparison across all US counties.

How does Koochiching County compare with the rest of Minnesota?

15.0 recorded events per 100 square miles against 71.0 statewide, and 1.4 NFIP claims per 1,000 residents against 2.2. The comparison table on this page shows each measure beside the state and national figures.

Provenance

Storm events: NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026 (public domain). Declarations: OpenFEMA DisasterDeclarationsSummaries v2, refreshed 1 Oct 2026. Flood claims: OpenFEMA NfipClaims v3 as of 8 Sep 2026; NfipMultipleLossProperties v1 (2 Aug 2026); NfipResidentialPenetrationRates v1 (3 Aug 2026). Risk index: FEMA National Risk Index, December 2025. Hurricane tracks: NHC HURDAT2 through 2025. Population and area: US Census Bureau, 2021 vintage. Built 1 Oct 2026; see the methodology and corrections pages. Hazard hubs: Hail · Tornado · Flood · Wind · Winter.