Dorchester County, Maryland: hazard risk

FEMA rates Dorchester County's overall risk Relatively Low (score 53.8 of 100, higher than 53% of rated U.S. counties); 1 of its 15 hazards are rated Relatively High or Very High, led by coastal flooding. Its storm record holds 446 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), Dorchester County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
Coastal FloodingRelatively High91.2$5.8M
HurricaneRelatively Moderate85.4$3.5M
DroughtRelatively Moderate81.2$887K
WildfireRelatively Low83.2$517K
Heat WaveRelatively Low63.0$587K
Ice StormRelatively Low45.7$62K
Winter WeatherRelatively Low44.9$48K
Cold WaveRelatively Low44.8$687K
Strong WindRelatively Low44.1$409K
LightningRelatively Low37.0$126K
TornadoRelatively Low31.0$477K
EarthquakeVery Low53.4$289K
Riverine FloodingVery Low21.6$2.3M
LandslideVery Low10.7$28
HailVery Low8.4$22K

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 wind1430$2.5M20th of 231429th of 3,080
Winter storms890$38K22nd of 23898th of 3,077
Floods840$2.7M16th of 23597th of 3,080
Hail390$3K21st of 232524th of 3,080
Heavy rain350–15th of 23191st of 3,080
High wind and dust storms150$1.6M21st of 231618th of 3,080
Tornadoes141$15M15th of 231838th of 3,080
Hurricanes and tropical storms110$3.4M6th of 23318th of 1,849
Heat51–21st of 231524th of 3,076
Extreme cold40–23rd of 232035th of 3,076
Lightning40$292K21st of 231146th of 3,080
Drought10$3.6M21st of 232402nd of 3,063

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

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

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