Mercer County, West Virginia: hazard risk

FEMA rates Mercer County's overall risk Relatively Low (score 65.2 of 100, higher than 65% of rated U.S. counties). Its storm record holds 514 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), Mercer County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
LandslideRelatively Moderate90.5$44K
Cold WaveRelatively Moderate80.6$2.9M
Riverine FloodingRelatively Moderate78.3$14M
Winter WeatherRelatively Moderate76.6$133K
LightningRelatively Moderate65.3$311K
Strong WindRelatively Moderate54.4$467K
EarthquakeRelatively Low71.0$639K
HailRelatively Low38.3$126K
Ice StormRelatively Low34.2$30K
WildfireVery Low62.8$77K
AvalancheVery Low61.1$1K
HurricaneVery Low50.0$55K
DroughtVery Low24.6$9K
TornadoVery Low17.2$138K
Heat WaveVery Low2.2$2

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.
Floods1130$22M19th of 53332nd of 3,080
Severe thunderstorm wind1110$624K40th of 531691st of 3,080
Winter storms1051$2.0M18th of 53486th of 3,077
Hail870$78K9th of 531184th of 3,080
High wind and dust storms360$5.2M18th of 53439th of 3,080
Heavy rain222$203K8th of 53248th of 3,080
Drought170$459K26th of 531130th of 3,063
Extreme cold70$9K47th of 531296th of 3,076
Landslides and avalanches70$30K1st of 5374th of 2,278
Lightning70$931K3rd of 53440th of 3,080
Tornadoes20$242K29th of 532641st 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 Mercer County record: every hazard by year and month, the deadliest events and FEMA's declarations.

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