San Bernardino County, California: hazard risk

FEMA rates San Bernardino County's overall risk Very High (score 99.8 of 100, higher than 99% of rated U.S. counties); 7 of its 15 hazards are rated Relatively High or Very High, led by landslide, wildfire, earthquake. Its storm record holds 3,395 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), San Bernardino County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
LandslideVery High99.9$18M
WildfireVery High99.9$146M
EarthquakeVery High99.8$922M
Riverine FloodingVery High99.8$960M
Heat WaveRelatively High98.4$18M
Strong WindRelatively High97.0$4.0M
LightningRelatively High95.2$2.0M
HailRelatively Moderate90.9$1.9M
TornadoRelatively Moderate78.8$3.8M
AvalancheRelatively Low78.5$144K
Winter WeatherRelatively Low48.4$62K
DroughtRelatively Low33.5$37K
Cold WaveRelatively Low28.3$392K
Volcanic ActivityVery Low31.6$3
HurricaneNo Rating0.0$0

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.
Floods99922$470M37th of 572353rd of 3,080
High wind and dust storms83817$72M45th of 571596th of 3,080
Heat36134$599K40th of 571702nd of 3,076
Wildfires23613$2.0B36th of 57273rd of 2,972
Winter storms2324$5.7M39th of 572907th of 3,077
Severe thunderstorm wind1973$7.0M12th of 572873rd of 3,080
Heavy rain1242$171M46th of 571486th of 3,080
Drought780$3K33rd of 572426th of 3,063
Hail670$474K43rd of 572970th of 3,080
Landslides and avalanches6515$35M34th of 57234th of 2,278
Lightning633$2.2M14th of 571631st of 3,080
Tornadoes330$1.3M38th of 572876th of 3,080
Extreme cold230$42M50th of 572803rd of 3,076
Hurricanes and tropical storms30–14th of 571100th of 1,849
Rip currents and high surf20–38th of 57267th of 2,080

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

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

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