Cass County, Illinois: hazard risk

FEMA rates Cass County's overall risk Very Low (score 38.6 of 100, higher than 38% of rated U.S. counties). Its storm record holds 319 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), Cass County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
Cold WaveRelatively Moderate84.8$5.0M
DroughtRelatively Moderate84.1$1.2M
Strong WindRelatively Moderate62.2$780K
Heat WaveRelatively Low64.8$731K
HailRelatively Low38.7$172K
TornadoRelatively Low32.6$602K
LandslideVery Low55.4$2K
EarthquakeVery Low47.6$248K
Riverine FloodingVery Low28.1$3.3M
Ice StormVery Low25.0$24K
Winter WeatherVery Low21.7$20K
LightningVery Low16.6$57K
HurricaneVery Low15.6$4K
WildfireVery Low0.3$107

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 wind1070$18M53rd of 1021165th of 3,080
Hail570$131K53rd of 1021259th of 3,080
Winter storms541$202K49th of 1021040th of 3,077
Floods360$4.0M48th of 102958th of 3,080
Tornadoes181$6.0M84th of 1021321st of 3,080
Heat150–42nd of 102630th of 3,076
Drought140$37M34th of 1021189th of 3,063
Extreme cold91–54th of 1021000th of 3,076
High wind and dust storms80–65th of 1021739th 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 Cass County record: every hazard by year and month, the deadliest events and FEMA's declarations.

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