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Natural Hazard Risk in Tennessee

The risk score (0–100) combines expected annual loss from 18 natural hazards with social vulnerability and community resilience. Higher = greater relative risk. Scores compare counties across the United States.

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CountyRisk scoreRatingExpected annual lossPopulation
Shelby99.4Relatively High$554.7M929,552
Davidson97.2Relatively High$262.4M715,485
Hamilton93.3Relatively Moderate$140.1M365,901
Knox92.1Relatively Moderate$131.4M478,842
Madison92.1Relatively Moderate$90.8M98,781
Rutherford91.7Relatively Moderate$134.9M341,253
Sumner87.7Relatively Moderate$86.7M196,179
Montgomery87.4Relatively Moderate$77.8M220,041
Dyer86.6Relatively Moderate$47.3M36,762
Gibson85.9Relatively Moderate$48.5M50,413
Williamson85.1Relatively Moderate$98M247,523
Henry84.7Relatively Moderate$38.4M32,196
Obion81.3Relatively Moderate$34.9M30,777
Tipton81Relatively Moderate$34.3M60,942
Wilson80Relatively Low$60.5M147,693
Maury79.3Relatively Low$46.2M100,910
Sevier77.4Relatively Low$32.1M98,277
Fayette76Relatively Low$29.7M41,886
Blount74.2Relatively Low$36.6M135,033
Weakley74Relatively Low$34.6M32,891
Bradley73.4Relatively Low$35.8M108,482
Anderson73.2Relatively Low$29.5M77,015
Carroll72.8Relatively Low$24.8M28,396
Lauderdale71.6Relatively Low$20.3M25,078
Sullivan71.5Relatively Low$28.5M158,067
Hardin70.7Relatively Low$19.6M26,745
Lawrence69.7Relatively Low$22.3M44,119
Bedford69.2Relatively Low$25.4M50,187
Roane69Relatively Low$21.8M53,371
Loudon68.4Relatively Low$22.2M54,818
Cumberland67.2Relatively Low$18.5M61,087
Putnam65.8Relatively Low$24.4M79,809
Haywood64.7Relatively Low$16.1M17,842
Coffee63.5Relatively Low$22.9M57,861
Warren63.5Relatively Low$18.4M40,930
Carter63.2Relatively Low$15.9M56,264
Henderson63.1Relatively Low$19.5M27,818
Hardeman63Relatively Low$14.8M23,479
Washington61.2Relatively Low$22.6M132,934
Giles60.9Relatively Low$17.6M30,337
Monroe60.9Relatively Low$15.8M46,218
Robertson60.4Relatively Low$24M72,788
McMinn60.2Relatively Low$18.2M53,193
Lincoln58.9Relatively Low$16.1M35,311
Marion58.2Relatively Low$16.4M28,731
Campbell58Relatively Low$13.7M39,231
Franklin57.5Relatively Low$19.6M42,763
Greene56.3Relatively Low$13.9M70,100
Hawkins55.8Relatively Low$13.7M56,711
Cocke54.5Relatively Low$11.8M35,951
Dickson53.5Relatively Low$18.8M54,292
Crockett52.6Relatively Low$12.5M13,873
McNairy50.5Relatively Low$14.6M25,792
Rhea49.2Relatively Low$13.5M32,839
Humphreys48.3Relatively Low$12.6M18,964
Lake47.8Relatively Low$9.6M7,005
Hickman47.2Relatively Low$12.7M24,872
Hamblen47.1Relatively Low$12.1M64,438
Cheatham46.3Relatively Low$17.3M41,046
Marshall45.4Relatively Low$19.7M34,318
Jefferson44.9Relatively Low$12.3M54,645
Chester44.5Relatively Low$12.8M17,340
Wayne43Relatively Low$9.4M16,204
Claiborne42.8Relatively Low$10.2M32,028
Sequatchie40.2Very Low$11M15,811
Benton39.1Very Low$9.7M15,849
White38.5Very Low$10M27,325
Decatur38.4Very Low$8.4M11,430
Macon34.6Very Low$8.6M25,211
Grundy34.3Very Low$6.3M13,485
Perry33.4Very Low$6.9M8,329
Polk31.2Very Low$6.8M17,531
Stewart29.4Very Low$6.8M13,649
Fentress28.4Very Low$6.2M18,485
Johnson28.2Very Low$5.9M17,932
Scott26.1Very Low$6.5M21,840
DeKalb25.5Very Low$7.5M20,068
Bledsoe24.1Very Low$6M14,876
Cannon22.9Very Low$7.1M14,490
Jackson22.5Very Low$4.7M11,610
Overton22.2Very Low$7.3M22,498
Morgan19.1Very Low$6.5M21,024
Smith18.8Very Low$9.6M19,887
Grainger18.6Very Low$5.2M23,527
Lewis13.9Very Low$5.4M12,491
Clay13.3Very Low$4.3M7,571
Houston13.1Very Low$5.2M8,275
Union12.9Very Low$5.1M19,802
Meigs12.7Very Low$4M12,744
Hancock11.9Very Low$3.1M6,660
Unicoi10.6Very Low$4.4M17,924
Moore9.9Very Low$4.2M6,446
Trousdale6.1Very Low$4.6M11,606
Pickett4.6Very Low$2.1M4,999
Van Buren2.7Very Low$2.6M6,146

🏛️ Federal disaster declarations (last 2 years)

DRSEVERE WINTER STORMFeb 6, 2026

Winter Storm · Designated areas: Wilson (County), Williamson (County), Wayne (County), Trousdale (County), Sumner (County), Shelby (County), Rutherford (County), Robertson (County), Perry (County), Montgomery (County), Maury (County), Madison (County)…

EMSEVERE WINTER STORMJan 24, 2026

Winter Storm · Designated areas: Trousdale (County), Bedford (County), Benton (County), Bledsoe (County), Blount (County), Bradley (County), Campbell (County), Cannon (County), Carroll (County), Carter (County), Cheatham (County), Chester (County)…

DRSEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODINGJun 19, 2025

Severe Storm · Designated areas: Carroll (County), Decatur (County), Fayette (County), Gibson (County), Grundy (County), Hardin (County), Haywood (County), Henry (County), Hickman (County), Lauderdale (County), Madison (County), Perry (County)…

EMSEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODINGApr 2, 2025

Severe Storm · Designated areas: Morgan (County), Moore (County), Montgomery (County), Monroe (County), Meigs (County), Maury (County), Marshall (County), Marion (County), Madison (County), Macon (County), McNairy (County), McMinn (County)…

DRTROPICAL STORM HELENEOct 2, 2024

Tropical Storm · Designated areas: Claiborne (County), Greene (County), Cocke (County), Carter (County), Sullivan (County), Sevier (County), Jefferson (County), Hancock (County), Grainger (County), Washington (County), Unicoi (County), Johnson (County)…

EMTROPICAL STORM HELENESep 27, 2024

Tropical Storm · Designated areas: Unicoi (County), Johnson (County), Hawkins (County), Hamblen (County), Greene (County), Cocke (County), Carter (County), Washington (County)

Major disaster (DR) and emergency (EM) declarations unlock federal assistance for the designated areas. Source: FEMA / OpenFEMA.

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Data: FEMA National Risk Index (updated ~annually). AlertAtlas is not an official warning service — always follow local authorities.