Hamilton County, Illinois: hazard risk

FEMA rates Hamilton County's overall risk Very Low (score 30.8 of 100, higher than 30% of rated U.S. counties). Its storm record holds 662 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), Hamilton County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
EarthquakeRelatively Moderate90.7$7.3M
Strong WindRelatively Moderate55.9$803K
Winter WeatherRelatively Low53.1$88K
DroughtRelatively Low52.7$218K
Heat WaveRelatively Low44.1$345K
TornadoRelatively Low37.3$939K
Ice StormRelatively Low36.2$55K
HailRelatively Low35.1$180K
Cold WaveRelatively Low30.9$545K
LandslideVery Low49.0$2K
HurricaneVery Low27.8$15K
Riverine FloodingVery Low12.5$1.9M
LightningVery Low12.3$52K
WildfireVery Low1.1$598

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.
Winter storms1190$148K22nd of 102423rd of 3,077
Heat840–14th of 10299th of 3,076
Extreme cold780$4.3M15th of 10254th of 3,076
Severe thunderstorm wind700$1.1M96th of 1021883rd of 3,080
High wind and dust storms651$150K17th of 102200th of 3,080
Floods470$1.2M36th of 102776th of 3,080
Hail440$1.4M89th of 1021990th of 3,080
Drought300$4.9M16th of 102624th of 3,063
Tornadoes120$24M98th of 1021777th of 3,080
Heavy rain50–32nd of 102781st 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 Hamilton County record: every hazard by year and month, the deadliest events and FEMA's declarations.

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