Sumter County, South Carolina: hazard risk

FEMA rates Sumter County's overall risk Relatively Moderate (score 81.7 of 100, higher than 81% of rated U.S. counties); 2 of its 14 hazards are rated Relatively High or Very High, led by strong wind, ice storm. Its storm record holds 703 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), Sumter County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
Strong WindRelatively High88.4$1.7M
Ice StormRelatively High82.7$451K
HurricaneRelatively Moderate91.9$9.8M
EarthquakeRelatively Moderate91.1$5.6M
HailRelatively Moderate84.1$997K
Heat WaveRelatively Moderate80.5$1.4M
LightningRelatively Moderate79.0$612K
Riverine FloodingRelatively Moderate76.3$15M
TornadoRelatively Moderate74.9$2.7M
Cold WaveRelatively Moderate70.7$1.9M
Winter WeatherRelatively Moderate61.0$83K
WildfireRelatively Low79.0$326K
DroughtRelatively Low47.6$110K
LandslideVery Low40.1$589

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 wind4261$2.5M12th of 46356th of 3,080
Hail1380$900K15th of 46958th of 3,080
Floods340$148K29th of 462218th of 3,080
Winter storms310–27th of 462441st of 3,077
Tornadoes281$10M24th of 461324th of 3,080
Hurricanes and tropical storms160$894K11th of 46402nd of 1,849
High wind and dust storms120$1.9M26th of 462054th of 3,080
Heavy rain90$24114th of 46938th of 3,080
Lightning70$2.3M23rd of 46685th of 3,080
Heat11–31st of 462254th of 3,076

Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.

The full Sumter County record: every hazard by year and month, the deadliest events and FEMA's declarations.

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