Marion County, Illinois: hazard risk

FEMA rates Marion County's overall risk Relatively Low (score 77.1 of 100, higher than 77% of rated U.S. counties); 1 of its 14 hazards are rated Relatively High or Very High, led by strong wind. Its storm record holds 497 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), Marion County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
Strong WindRelatively High92.0$1.9M
EarthquakeRelatively Moderate95.0$12M
Heat WaveRelatively Moderate83.3$1.5M
Cold WaveRelatively Moderate74.2$2.1M
TornadoRelatively Moderate70.5$2.1M
Winter WeatherRelatively Moderate70.5$110K
DroughtRelatively Moderate64.4$317K
Riverine FloodingRelatively Low68.1$10M
LandslideRelatively Low67.0$4K
HailRelatively Low58.0$295K
LightningRelatively Low49.8$192K
Ice StormRelatively Low39.8$43K
HurricaneVery Low40.6$26K
WildfireVery Low15.5$4K

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 wind2100$1.4M46th of 1021069th of 3,080
Hail1010$1.3M63rd of 1021357th of 3,080
Heat490–31st of 102341st of 3,076
Winter storms450–81st of 1021818th of 3,077
Floods375$247K70th of 1021217th of 3,080
Tornadoes372$18M51st of 102792nd of 3,080
High wind and dust storms80$158K92nd of 1022214th of 3,080
Extreme cold40–98th of 1022076th of 3,076
Drought30–102nd of 1022190th of 3,063
Heavy rain30–46th of 1021307th 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 Marion County record: every hazard by year and month, the deadliest events and FEMA's declarations.

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