Alexander County, Illinois: hazard risk

FEMA rates Alexander County's overall risk Relatively Low (score 44.1 of 100, higher than 44% of rated U.S. counties). Its storm record holds 929 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), Alexander County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
EarthquakeRelatively Moderate90.2$3.7M
DroughtRelatively Moderate70.9$375K
Ice StormRelatively Moderate67.8$134K
Strong WindRelatively Moderate58.0$470K
Heat WaveRelatively Low50.2$257K
TornadoRelatively Low43.2$665K
Winter WeatherRelatively Low43.1$35K
Riverine FloodingRelatively Low40.5$3.4M
Cold WaveRelatively Low36.8$395K
LandslideVery Low55.6$1K
HailVery Low24.0$60K
HurricaneVery Low20.7$4K
LightningVery Low16.7$39K
WildfireVery Low2.1$557

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.
Floods2420$34M1st of 1024th of 3,080
Winter storms1010$15M6th of 102158th of 3,077
High wind and dust storms1000$12M1st of 10227th of 3,080
Heat910–3rd of 10212th of 3,076
Severe thunderstorm wind800$2.0M20th of 102635th of 3,080
Extreme cold670$4.3M5th of 10212th of 3,076
Hail520$1K20th of 102538th of 3,080
Drought370$4.9M3rd of 10288th of 3,063
Tornadoes170$5.1M18th of 102260th of 3,080
Heavy rain100–7th of 102211th of 3,080
Lightning10$14K51st of 1021359th 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 Alexander County record: every hazard by year and month, the deadliest events and FEMA's declarations.

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