Grainger County, Tennessee: hazard risk
FEMA rates Grainger County's overall risk Very Low (score 18.6 of 100, higher than 18% of rated U.S. counties). Its storm record holds 281 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 |
|---|---|---|---|
| Landslide | Relatively Moderate | 89.7 | $42K |
| Earthquake | Relatively Low | 67.6 | $525K |
| Strong Wind | Relatively Low | 48.4 | $395K |
| Lightning | Relatively Low | 43.9 | $141K |
| Drought | Relatively Low | 42.6 | $64K |
| Tornado | Relatively Low | 39.2 | $616K |
| Hail | Relatively Low | 34.8 | $108K |
| Ice Storm | Relatively Low | 34.0 | $30K |
| Winter Weather | Relatively Low | 32.0 | $25K |
| Cold Wave | Relatively Low | 29.1 | $295K |
| Wildfire | Very Low | 48.7 | $33K |
| Riverine Flooding | Very Low | 33.6 | $2.9M |
| Hurricane | Very Low | 24.9 | $7K |
| Heat Wave | Very Low | 14.3 | $25K |
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 | 180 | 0 | $1.8M | 16th of 95 | 160th of 3,080 |
| Winter storms | 40 | 0 | $27K | 42nd of 95 | 1097th of 3,077 |
| Hail | 35 | 0 | $127K | 54th of 95 | 1622nd of 3,080 |
| Floods | 15 | 1 | $1.8M | 84th of 95 | 1441st of 3,080 |
| Tornadoes | 4 | 0 | $1.3M | 78th of 95 | 2252nd of 3,080 |
| High wind and dust storms | 3 | 0 | $31K | 75th of 95 | 2298th of 3,080 |
| Lightning | 2 | 0 | $276K | 45th of 95 | 954th of 3,080 |
| Drought | 1 | 0 | – | 70th of 95 | 2285th of 3,063 |
| Hurricanes and tropical storms | 1 | 0 | $23K | 12th of 95 | 793rd of 1,849 |
Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.
The full Grainger County record: every hazard by year and month, the deadliest events and FEMA's declarations.