County Hazards

States › South Dakota › Todd County

Todd County, South Dakota

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

FIPS 46121 · 9,286 residents (2021) · 1,389 sq mi · dominant hazard Wind

Hail · 253Tornado · 40Flood · 16Wind · 340Winter · 108
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Todd County within South Dakota. 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 29 Sep 2026; NFIP claims as of 8 Sep 2026.

Todd County, South Dakota, has 777 weather events in the NCEI Storm Events record since 1950, most of them damaging wind.

That is 56.0 events per 100 square miles, below the South Dakota figure of 73.7, and 836.7 per 10,000 residents against 624.1 statewide.

32 events fall in the 12 months to 30 Jun 2026. NCEI attributes 5 deaths and 8 injuries to events in the county, with property damage estimated at $4.7M and crop damage at $176K.

FEMA has designated the county in 13 federal disaster declarations since 1953; the most recent is Severe Winter Storms And Snowstorm (major disaster, 27 Feb 2023).

National Flood Insurance Program policyholders in the county filed 4 claims since 1978, of which 2 were paid, totalling $2K (about $969 per paid claim). FEMA counts 1 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" ($6.2M a year across 18 hazards).

32events, last 12 monthsto 30 Jun 2026
777events since 19505 deaths, 8 injuries recorded
13disaster declarationslast 27 Feb 2023
4NFIP flood claims$2K paid

Compared with South Dakota and the United States

MeasureTodd CountySouth DakotaUS
Recorded events since 195077755,8771,977,440
Events per 100 square miles56.073.756.0
Events per 10,000 residents836.7624.159.6
Events in the last 12 months322,30362,008
Deaths recorded by NCEI514726,435
Property damage (NCEI estimates)$4.7M$1.1B$575B
NFIP claims per 1,000 residents0.44.58.1
Average paid NFIP claim$969$21K$43K
Claims per 100 policies in force, last 10 years100.030.716.1

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: 1
Hail: 4Tornado: 7Wind: 1
Hail: 8Tornado: 5Wind: 4
Hail: 2Tornado: 4Wind: 7
Hail: 14Tornado: 14Flood: 3Wind: 14Winter: 11Cold: 2Lightning: 1Other: 2
Hail: 101Tornado: 5Flood: 5Wind: 73Winter: 30Heat: 1Wildfire: 1Lightning: 1Other: 2
Hail: 77Tornado: 2Flood: 7Wind: 116Winter: 42Cold: 4Other: 1
Hail: 46Tornado: 3Flood: 1Wind: 125Winter: 25Cold: 5
11950s121960s171970s131980s611990s2192000s2492010s2052020s
Recorded events in Todd County by decade and hazard group. HailTornadoFloodWindWinterHeatColdWildfireLightningOther NCEI recorded only tornadoes, hail and thunderstorm wind before 1996.

Trend: 543 events in the 20 years to 2025 against 183 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

Wind340
Hail253
Winter108
Tornado40
Flood16
Cold11
Other5
Lightning2
Heat1
Wildfire1
HazardEventsDeathsShare of state's events
■ Wind340—1.9%detail
■ Hail253—1.5%detail
■ Winter10851.1%detail
■ Tornado40—2.1%detail
■ Flood16—0.5%detail
■ Cold11—0.6%
■ Other5—1.8%
■ Lightning2—1.6%
■ Heat1—0.1%
■ Wildfire1—1.2%

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
13 Dec 2022BlizzardWinter———5—Forecast zone
27 Apr 2025TornadoTornadoEF1$1.0M——6County
15 Jun 1971TornadoTornadoF2———1County
11 Aug 1999LightningLightning————1County
8 Jun 2004LightningLightning—$500K———County
2 Jul 1974TornadoTornadoF2$250K———County
7 Sep 1979TornadoTornadoF2$250K———County
15 Aug 2004Thunderstorm WindWind70 mph$250K———County
30 Mar 2009BlizzardWinter—$250K———Forecast zone
23 Mar 2019FloodFlood—$250K———County
22 Mar 2019FloodFlood—$250K———County
8 Jun 2004Flash FloodFlood—$200K———County
13 Jul 2009HailHail4.25 in$200K———County
17 Sep 2000Thunderstorm WindWind70 mph$100K———County
20 Jul 2005HailHail1.50 in—$100K——County
6 Nov 2008BlizzardWinter—$100K———Forecast zone
23 Mar 2009BlizzardWinter—$100K———Forecast zone
30 Jun 2011Thunderstorm WindWind70 mph$100K———County
18 Mar 2012HailHail4.25 in$100K———County
22 May 2019FloodFlood—$100K———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
27 Feb 2023DR-4689Major disasterWinter StormSevere Winter Storms And SnowstormPublic assistance
5 Apr 2020DR-4527Major disasterBiologicalCovid-19 PandemicIndividual assistance, Public assistance
13 Mar 2020EM-3475EmergencyBiologicalCovid-19Public assistance
23 Sep 2019DR-4463Major disasterFloodSevere Storms And FloodingPublic assistance
7 Jun 2019DR-4440Major disasterFloodSevere Winter Storm, Snowstorm, And FloodingIndividual assistance, Public assistance
9 Mar 2010DR-1886Major disasterSevere StormSevere Winter Storm And SnowstormPublic assistance
12 Dec 2008DR-1811Major disasterSnowstormSevere Winter Storm And Record And Near Record SnowPublic assistance
10 Sep 2005EM-3234EmergencyCoastal StormHurricane Katrina EvacuationPublic assistance
20 Jul 2004DR-1531Major disasterSevere StormSevere Storms And FloodingPublic assistance
17 May 2001DR-1375Major disasterFloodSevere Winter Storms, Flooding, And Ice JamsPublic assistance
7 Apr 1997DR-1173Major disasterFloodSevere Flooding, Sever Winter Storms,Heavy Rains High WindsIndividual assistance, Public assistance
10 Jan 1997DR-1156Major disasterSevere StormSevere Winter Storms And Blizzard ConditionsPublic assistance
17 Jun 1976EM-3015EmergencyDroughtDroughtPublic 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 Todd County, 1978 to 2026 (hover for the amount paid).
Claims since 19784
Paid claims2
Total paid$2K
Average paid claim$969
Repetitive-loss properties0
Residential policies in force10.0% of 2,524 structures
Year of lossClaimsPaid claimsAmount paidAverage paid
201911$575$575
201610$0—
199721$1,362$1,362

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 36.6 of 100
Expected annual loss$6.2MVery Low
Social vulnerabilityVery High
Community resilienceVery Low
Hazard (NRI)Risk ratingExpected annual loss
Inland floodingVery Low$1,773,322
Cold waveRelatively Moderate$1,567,713
WildfireRelatively Moderate$1,505,380
TornadoRelatively Low$494,500
Winter weatherRelatively High$199,164
Strong windRelatively Low$191,035
HailRelatively Low$170,847
LightningRelatively Low$112,012
Heat waveVery Low$90,197
Ice stormRelatively Low$64,924
EarthquakeVery Low$22,477
DroughtVery Low$12,170
LandslideVery Low$145

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).

Questions and answers

How often does it hail in Todd County, SD?

NCEI records 253 hail events in Todd County since 1950, in 45 different years; that is about 3.3 recorded events a year. 73 reports were golf-ball size (1.75 in) or larger.

Has Todd County had a tornado?

Yes. NCEI records 40 tornadoes in Todd County since 1950, 5 of them rated (E)F2 or stronger. Tornado deaths recorded: 0.

When was the last federal disaster declaration for Todd County?

27 Feb 2023: Severe Winter Storms And Snowstorm, a major disaster declaration for winter storm. The county appears in 13 declarations since 1953.

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

4 NFIP claims since 1978, 2 of them paid, for $2K in total. FEMA publishes these figures redacted and aggregated; individual properties are not identified.

Is Todd 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, "Very High" for social vulnerability and "Very Low" for community resilience. These ratings are FEMA's relative comparison across all US counties.

How does Todd County compare with the rest of South Dakota?

56.0 recorded events per 100 square miles against 73.7 statewide, and 0.4 NFIP claims per 1,000 residents against 4.5. 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 29 Sep 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 30 Sep 2026; see the methodology and corrections pages. Hazard hubs: Hail · Tornado · Flood · Wind · Winter.