Hanson County, South Dakota: hazard risk

FEMA rates Hanson County's overall risk Very Low (score 14.8 of 100, higher than 14% of rated U.S. counties). Its storm record holds 566 events since 1950.

FEMA's rating for each hazard

These are FEMA's county-wide model ratings and this county's storm record. They are not an assessment of any property, address or building, and not insurance advice: a property's risk depends on its own elevation, construction and location.

FEMA gives each hazard its own rating, and a rating does not follow the score from one hazard to the next: a hazard with a higher score can carry a lower rating than another. The table sorts by FEMA's rating, then by score (0 to 100, the county against every other county for that hazard).

National Risk Index (December 2025), Hanson County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
DroughtRelatively Moderate80.6$692K
Ice StormRelatively Moderate68.0$142K
HailRelatively Low65.1$322K
Winter WeatherRelatively Low58.4$62K
Cold WaveRelatively Low47.3$610K
TornadoRelatively Low43.5$710K
Strong WindRelatively Low40.8$303K
WildfireVery Low54.8$44K
LandslideVery Low41.1$510
Heat WaveVery Low16.1$30K
Riverine FloodingVery Low15.0$1.3M
EarthquakeVery Low13.2$10K
LightningVery Low9.5$23K

Source: FEMA National Risk Index, December 2025 release. A model of future loss, not a count of past events. FEMA's National Risk Index map.

What the record holds

Storm records by hazard, with the county's rank by days with a record per 1,000 sq mi over each hazard's complete period
HazardRecordsDeathsDamageRank in stateRank in U.S.
Winter storms1600$2.0M2nd of 66218th of 3,077
Hail920$92K22nd of 661030th of 3,080
Severe thunderstorm wind740$2.7M16th of 662008th of 3,080
Floods680$37M4th of 66363rd of 3,080
High wind and dust storms520$218K5th of 66253rd of 3,080
Drought430$22M7th of 66302nd of 3,063
Extreme cold310–4th of 66283rd of 3,076
Heat260–4th of 66450th of 3,076
Tornadoes180$2.6M30th of 661894th of 3,080
Lightning10$78K27th of 661815th of 3,080

Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.

The full Hanson County record: every hazard by year and month, the deadliest events and FEMA's declarations.

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