McCook County, South Dakota: hazard risk

FEMA rates McCook County's overall risk Relatively Low (score 43.4 of 100, higher than 43% of rated U.S. counties). Its storm record holds 745 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), McCook County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
Winter WeatherRelatively Moderate82.0$358K
DroughtRelatively Moderate76.5$1.2M
Ice StormRelatively Moderate69.0$325K
TornadoRelatively Moderate67.5$3.6M
HailRelatively Low71.2$918K
Riverine FloodingRelatively Low58.4$13M
Cold WaveRelatively Low38.5$969K
Strong WindRelatively Low27.4$412K
WildfireVery Low62.3$154K
LandslideVery Low27.7$395
EarthquakeVery Low20.1$44K
Heat WaveVery Low19.6$91K
LightningVery Low5.4$26K

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.
Hail1940$5.9M8th of 66427th of 3,080
Winter storms1882$13M9th of 66282nd of 3,077
Severe thunderstorm wind1280$2.9M17th of 662010th of 3,080
Drought500$40M11th of 66422nd of 3,063
High wind and dust storms480$158K19th of 66476th of 3,080
Tornadoes426$57M3rd of 66717th of 3,080
Extreme cold310–19th of 66440th of 3,076
Floods300$50M23rd of 661712th of 3,080
Heat250–11th of 66588th of 3,076
Heavy rain50–1st of 661124th of 3,080
Lightning20$73K18th of 661521st 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 McCook County record: every hazard by year and month, the deadliest events and FEMA's declarations.

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