Tennessee drought risk
95 counties scored 0 rated Very High
Warren County has the highest drought risk in Tennessee, scoring 83.1 out of 100 — rated "Relatively Moderate" by FEMA's National Risk Index.
| # | County | NRI score | Rating |
NOAA events 2016–2026 |
|---|---|---|---|---|
| 1 | Warren County | 83.1 | Relatively Moderate | 0 |
| 2 | Dyer County | 81.7 | Relatively Moderate | 0 |
| 3 | Obion County | 81.5 | Relatively Moderate | 0 |
| 4 | Gibson County | 73.3 | Relatively Moderate | 0 |
| 5 | Lake County | 73.3 | Relatively Moderate | 0 |
| 6 | Loudon County | 72.1 | Relatively Moderate | 0 |
| 7 | Lincoln County | 70.5 | Relatively Moderate | 0 |
| 8 | Coffee County | 69.7 | Relatively Moderate | 0 |
| 9 | Franklin County | 68.3 | Relatively Moderate | 0 |
| 10 | Weakley County | 66.2 | Relatively Moderate | 0 |
| 11 | Henry County | 65.7 | Relatively Moderate | 0 |
| 12 | Haywood County | 65.6 | Relatively Moderate | 0 |
| 13 | Lauderdale County | 64.8 | Relatively Moderate | 0 |
| 14 | Macon County | 62.8 | Relatively Low | 0 |
| 15 | Crockett County | 60.7 | Relatively Low | 0 |
| 16 | Greene County | 59.8 | Relatively Low | 0 |
| 17 | Robertson County | 59.5 | Relatively Low | 0 |
| 18 | Cumberland County | 59.2 | Relatively Low | 0 |
| 19 | Fayette County | 58 | Relatively Low | 0 |
| 20 | Tipton County | 57.6 | Relatively Low | 0 |
| 21 | Bedford County | 57.5 | Relatively Low | 0 |
| 22 | Monroe County | 55.6 | Relatively Low | 0 |
| 23 | Carroll County | 55.2 | Relatively Low | 0 |
| 24 | Madison County | 55.2 | Relatively Low | 0 |
| 25 | Bledsoe County | 54.7 | Relatively Low | 0 |
| 26 | Bradley County | 52.6 | Relatively Low | 0 |
| 27 | DeKalb County | 52.5 | Relatively Low | 0 |
| 28 | Marion County | 52.3 | Relatively Low | 0 |
| 29 | Grundy County | 52.1 | Relatively Low | 0 |
| 30 | Cocke County | 51.9 | Relatively Low | 0 |
| 31 | McMinn County | 51.7 | Relatively Low | 0 |
| 32 | Hardeman County | 51.4 | Relatively Low | 0 |
| 33 | Cannon County | 50.1 | Relatively Low | 0 |
| 34 | Hardin County | 49.6 | Relatively Low | 0 |
| 35 | Washington County | 48.2 | Relatively Low | 0 |
| 36 | Johnson County | 47.8 | Relatively Low | 0 |
| 37 | Rutherford County | 45.9 | Relatively Low | 0 |
| 38 | Montgomery County | 43.1 | Relatively Low | 0 |
| 39 | Polk County | 42.8 | Relatively Low | 0 |
| 40 | Grainger County | 42.6 | Relatively Low | 0 |
| 41 | Overton County | 42.3 | Relatively Low | 0 |
| 42 | Smith County | 42 | Relatively Low | 0 |
| 43 | Sumner County | 41.6 | Relatively Low | 0 |
| 44 | McNairy County | 41.2 | Relatively Low | 0 |
| 45 | Henderson County | 40.5 | Relatively Low | 0 |
| 46 | Meigs County | 39.7 | Relatively Low | 0 |
| 47 | Rhea County | 39.6 | Relatively Low | 0 |
| 48 | White County | 39.6 | Relatively Low | 0 |
| 49 | Knox County | 39.4 | Relatively Low | 0 |
| 50 | Chester County | 38.9 | Relatively Low | 0 |
| 51 | Shelby County | 37 | Relatively Low | 0 |
| 52 | Hamilton County | 36.6 | Relatively Low | 0 |
| 53 | Hickman County | 36 | Relatively Low | 0 |
| 54 | Williamson County | 35.8 | Relatively Low | 0 |
| 55 | Stewart County | 34.8 | Relatively Low | 0 |
| 56 | Hawkins County | 34.2 | Relatively Low | 0 |
| 57 | Blount County | 34.1 | Relatively Low | 0 |
| 58 | Giles County | 33.7 | Relatively Low | 0 |
| 59 | Jefferson County | 33 | Relatively Low | 0 |
| 60 | Cheatham County | 32.6 | Relatively Low | 0 |
| 61 | Carter County | 32.5 | Relatively Low | 0 |
| 62 | Hamblen County | 31.4 | Relatively Low | 0 |
| 63 | Fentress County | 31.3 | Relatively Low | 0 |
| 64 | Wilson County | 31.2 | Relatively Low | 0 |
| 65 | Benton County | 31.1 | Relatively Low | 0 |
| 66 | Lawrence County | 31.1 | Relatively Low | 0 |
| 67 | Houston County | 30.9 | Very Low | 0 |
| 68 | Dickson County | 30.8 | Very Low | 0 |
| 69 | Humphreys County | 30.3 | Very Low | 0 |
| 70 | Putnam County | 30.2 | Very Low | 0 |
| 71 | Sequatchie County | 30.2 | Very Low | 0 |
| 72 | Claiborne County | 29.3 | Very Low | 0 |
| 73 | Decatur County | 29.3 | Very Low | 0 |
| 74 | Sevier County | 28.9 | Very Low | 0 |
| 75 | Sullivan County | 28.7 | Very Low | 0 |
| 76 | Maury County | 28.5 | Very Low | 0 |
| 77 | Perry County | 28.4 | Very Low | 0 |
| 78 | Marshall County | 28.2 | Very Low | 0 |
| 79 | Wayne County | 27.4 | Very Low | 0 |
| 80 | Roane County | 27.1 | Very Low | 0 |
| 81 | Moore County | 27 | Very Low | 0 |
| 82 | Hancock County | 26.7 | Very Low | 0 |
| 83 | Van Buren County | 26.7 | Very Low | 0 |
| 84 | Davidson County | 26.6 | Very Low | 0 |
| 85 | Clay County | 26.3 | Very Low | 0 |
| 86 | Jackson County | 25.2 | Very Low | 0 |
| 87 | Morgan County | 24.8 | Very Low | 0 |
| 88 | Anderson County | 23.6 | Very Low | 0 |
| 89 | Campbell County | 21.8 | Very Low | 0 |
| 90 | Lewis County | 21.2 | Very Low | 0 |
| 91 | Trousdale County | 20.5 | Very Low | 0 |
| 92 | Scott County | 20.1 | Very Low | 0 |
| 93 | Pickett County | 18.9 | Very Low | 0 |
| 94 | Unicoi County | 0 | No Rating | 0 |
| 95 | Union County | 0 | No Rating | 0 |
Source: FEMA National Risk Index v1.20.0, December 2025. Scores are 0–100 percentile rankings among all US counties. See the methodology page for definitions. Download the full CSV for all counties.
Drought risk nationally:
Other hazard risks in Tennessee:
Frequently asked questions
What is the highest drought risk county in Tennessee?
Warren County, TN has the highest drought risk in Tennessee, with a FEMA National Risk Index score of 83.1 out of 100 (rated "Relatively Moderate").
What causes drought risk in Tennessee?
Drought risk captures expected annual losses from prolonged precipitation deficits affecting agriculture, water supply, and ecosystems. High scores cover the western Great Plains, Southwest, and California's Central Valley. Climate change is increasing drought frequency and severity across much of the US, with multi-year droughts becoming more common in the West.