Stanislaus County, California: hazard risk
FEMA rates Stanislaus County's overall risk Relatively High (score 96.9 of 100, higher than 96% of rated U.S. counties); 4 of its 14 hazards are rated Relatively High or Very High, led by drought, earthquake, riverine flooding. Its storm record holds 262 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).
| Hazard | Risk rating | Score | Expected annual loss |
|---|---|---|---|
| Drought | Very High | 99.8 | $71M |
| Earthquake | Relatively High | 98.5 | $85M |
| Riverine Flooding | Relatively High | 96.0 | $94M |
| Lightning | Relatively High | 91.0 | $1.3M |
| Heat Wave | Relatively Moderate | 96.3 | $8.3M |
| Wildfire | Relatively Moderate | 95.0 | $3.7M |
| Landslide | Relatively Low | 86.7 | $39K |
| Hail | Relatively Low | 52.2 | $298K |
| Winter Weather | Relatively Low | 36.8 | $41K |
| Strong Wind | Relatively Low | 28.3 | $286K |
| Tornado | Relatively Low | 27.8 | $462K |
| Volcanic Activity | Very Low | 78.2 | $316 |
| Avalanche | Very Low | 5.7 | $3 |
| Cold Wave | No Rating | 0.0 | $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
| Hazard | Records | Deaths | Damage | Rank in state | Rank in U.S. |
|---|---|---|---|---|---|
| Heat | 52 | 4 | – | 15th of 57 | 711th of 3,076 |
| Drought | 47 | 0 | $1.9B | 20th of 57 | 1308th of 3,063 |
| High wind and dust storms | 32 | 2 | $7.6M | 49th of 57 | 1765th of 3,080 |
| Floods | 29 | 2 | $565K | 43rd of 57 | 2566th of 3,080 |
| Extreme cold | 26 | 4 | $29M | 21st of 57 | 1245th of 3,076 |
| Heavy rain | 16 | 0 | $1.4M | 27th of 57 | 828th of 3,080 |
| Tornadoes | 13 | 0 | $2.8M | 9th of 57 | 2472nd of 3,080 |
| Severe thunderstorm wind | 9 | 0 | $201K | 31st of 57 | 2976th of 3,080 |
| Wildfires | 5 | 0 | $25M | 48th of 57 | 659th of 2,972 |
| Hail | 4 | 0 | $8K | 48th of 57 | 2991st of 3,080 |
| Lightning | 3 | 0 | $264K | 19th of 57 | 1903rd of 3,080 |
| Winter storms | 2 | 0 | – | 55th of 57 | 3044th of 3,077 |
Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.
The full Stanislaus County record: every hazard by year and month, the deadliest events and FEMA's declarations.