Gwinnett County, Georgia: hazard risk
FEMA rates Gwinnett County's overall risk Relatively High (score 95.4 of 100, higher than 95% of rated U.S. counties); 7 of its 14 hazards are rated Relatively High or Very High, led by lightning, hail, tornado. Its storm record holds 870 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 |
|---|---|---|---|
| Lightning | Very High | 98.7 | $4.4M |
| Hail | Relatively High | 98.0 | $6.9M |
| Tornado | Relatively High | 97.5 | $23M |
| Riverine Flooding | Relatively High | 97.4 | $145M |
| Ice Storm | Relatively High | 94.9 | $1.9M |
| Cold Wave | Relatively High | 93.5 | $11M |
| Strong Wind | Relatively High | 92.8 | $2.8M |
| Earthquake | Relatively Moderate | 93.3 | $10M |
| Heat Wave | Relatively Moderate | 93.0 | $4.9M |
| Winter Weather | Relatively Moderate | 71.0 | $154K |
| Landslide | Relatively Low | 79.3 | $16K |
| Hurricane | Relatively Low | 71.4 | $777K |
| Drought | Relatively Low | 56.0 | $249K |
| Wildfire | Very Low | 46.2 | $42K |
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. |
|---|---|---|---|---|---|
| Severe thunderstorm wind | 327 | 1 | $8.8M | 21st of 159 | 147th of 3,080 |
| Hail | 190 | 0 | $49M | 8th of 159 | 60th of 3,080 |
| Lightning | 129 | 5 | $22M | 2nd of 159 | 3rd of 3,080 |
| Floods | 45 | 1 | $35M | 24th of 159 | 1014th of 3,080 |
| Drought | 42 | 0 | $2.3M | 81st of 159 | 313th of 3,063 |
| Winter storms | 42 | 0 | $2.7M | 41st of 159 | 1565th of 3,077 |
| High wind and dust storms | 21 | 2 | $1.8M | 25th of 159 | 908th of 3,080 |
| Hurricanes and tropical storms | 17 | 2 | $3.6M | 83rd of 159 | 162nd of 1,849 |
| Extreme cold | 14 | 0 | – | 83rd of 159 | 784th of 3,076 |
| Heavy rain | 14 | 0 | $947K | 8th of 159 | 290th of 3,080 |
| Tornadoes | 12 | 1 | $123M | 115th of 159 | 1668th of 3,080 |
| Heat | 11 | 0 | – | 81st of 159 | 869th 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 Gwinnett County record: every hazard by year and month, the deadliest events and FEMA's declarations.