Linn County, Missouri: hazard risk

FEMA rates Linn County's overall risk Very Low (score 31.2 of 100, higher than 31% of rated U.S. counties). Its storm record holds 353 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), Linn County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
DroughtRelatively Moderate72.1$488K
TornadoRelatively Moderate66.9$1.9M
Heat WaveRelatively Low64.5$590K
LightningRelatively Low50.7$195K
HailRelatively Low49.9$214K
Cold WaveRelatively Low46.8$691K
Riverine FloodingRelatively Low39.0$3.8M
Strong WindRelatively Low29.3$236K
LandslideVery Low59.5$2K
WildfireVery Low50.7$41K
EarthquakeVery Low40.9$133K
Winter WeatherVery Low22.1$16K
Ice StormVery Low20.8$14K
HurricaneVery Low16.2$3K

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.
Severe thunderstorm wind1110$300K95th of 1142137th of 3,080
Hail1070$3.9M89th of 1141405th of 3,080
Winter storms440$171K90th of 1141955th of 3,077
Floods220–108th of 1142146th of 3,080
Drought210–60th of 1141257th of 3,063
Tornadoes190$24M85th of 1141755th of 3,080
Heat140–69th of 114931st of 3,076
Extreme cold120–34th of 1141157th of 3,076
Heavy rain10–86th of 1142043rd of 3,080
High wind and dust storms10–107th of 1142903rd 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 Linn County record: every hazard by year and month, the deadliest events and FEMA's declarations.

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