← Natural Hazard Risk by State🌐 Español

Natural Hazard Risk in South Carolina

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.

See what's happening right now on the live map →
CountyRisk scoreRatingExpected annual lossPopulation
Charleston98.6Relatively High$499.8M407,722
Horry98.2Relatively High$290.4M348,574
Beaufort97.1Relatively High$255.6M186,606
Berkeley94.8Relatively High$213.5M229,449
Greenville94Relatively Moderate$169M525,347
Dorchester93.7Relatively Moderate$175.8M161,445
Richland93.1Relatively Moderate$137.8M415,644
Georgetown92.5Relatively Moderate$90.2M63,262
Lexington90.9Relatively Moderate$108.2M293,888
Spartanburg90.6Relatively Moderate$89.3M327,446
Florence89.6Relatively Moderate$65.2M136,859
York88.7Relatively Moderate$99.2M281,543
Orangeburg87.7Relatively Moderate$44.3M84,183
Anderson87.2Relatively Moderate$67.3M203,620
Oconee85.6Relatively Moderate$45.1M78,560
Colleton85.5Relatively Moderate$37.8M38,512
Dillon84.3Relatively Moderate$35M28,257
Aiken84.2Relatively Moderate$47.5M168,745
Williamsburg82.1Relatively Moderate$30.2M30,987
Sumter81.7Relatively Moderate$40.7M105,493
Marion80.7Relatively Low$27.1M29,137
Lancaster79.4Relatively Low$40.1M95,804
Jasper78.6Relatively Low$28.8M28,355
Pickens77.6Relatively Low$37.1M131,341
Clarendon76.5Relatively Low$23.4M31,118
Laurens76.2Relatively Low$27.1M67,470
Chesterfield74Relatively Low$22.5M43,159
Greenwood72.7Relatively Low$27.3M69,326
Darlington72.3Relatively Low$22.4M62,874
Cherokee69.7Relatively Low$23.4M56,186
Kershaw66.7Relatively Low$23.5M65,395
Hampton64.8Relatively Low$15.1M18,531
Newberry62Relatively Low$17.3M37,683
Union58.2Relatively Low$12.5M27,226
Marlboro57.5Relatively Low$11.4M26,656
Bamberg46.5Relatively Low$9.3M13,290
Barnwell45.8Relatively Low$8.4M20,573
Abbeville45.4Relatively Low$10.3M24,291
Chester43.2Relatively Low$10.8M32,263
Fairfield40.8Very Low$8.5M20,909
Saluda40.1Very Low$8.2M18,852
Lee36Very Low$7.6M16,515
Allendale35.5Very Low$7.1M8,033
Calhoun22.6Very Low$6.1M14,114
Edgefield22Very Low$6.8M25,644
McCormick9.5Very Low$2.8M9,500

🏛️ Federal disaster declarations (last 2 years)

DRSEVERE WINTER STORMApr 7, 2026

Winter Storm · Designated areas: Pickens (County), Oconee (County), Greenville (County)

EMSEVERE WINTER STORMJan 23, 2026

Winter Storm · Designated areas: Aiken (County), Allendale (County), Anderson (County), Bamberg (County), Barnwell (County), Beaufort (County), Berkeley (County), Calhoun (County), Charleston (County), Cherokee (County), Chester (County), Chesterfield (County)…

FMTABLE ROCK FIRE COMPLEXMar 23, 2025

Fire · Designated areas: Pickens (County), Greenville (County)

FMTABLE ROCK FIRE Mar 23, 2025

Fire · Designated areas: Pickens (County)

FMCOVINGTON DRIVE FIREMar 7, 2025

Fire · Designated areas: Horry (County)

DRSEVERE STORMS AND FLOODINGJan 10, 2025

Flood · Designated areas: Bamberg (County), Orangeburg (County), Calhoun (County)

DRTROPICAL STORM DEBBYSep 29, 2024

Tropical Storm · Designated areas: Hampton (County), Horry (County), Jasper (County), Orangeburg (County), Union (County), Beaufort (County), Florence (County), Bamberg (County), Barnwell (County), Berkeley (County), Colleton (County), Dillon (County)…

DRHURRICANE HELENESep 29, 2024

Hurricane · Designated areas: York (County), Union (County), Spartanburg (County), Saluda (County), Richland (County), Pickens (County), Orangeburg (County), Oconee (County), Newberry (County), McCormick (County), Lexington (County), Laurens (County)…

EMHURRICANE HELENESep 26, 2024

Tropical Storm · Designated areas: Hampton (County), Abbeville (County), Aiken (County), Allendale (County), Anderson (County), Bamberg (County), Barnwell (County), Beaufort (County), Berkeley (County), Calhoun (County), Charleston (County), Cherokee (County)…

EMHURRICANE DEBBYAug 5, 2024

Tropical Storm · Designated areas: Abbeville (County), Sumter (County), Union (County), Williamsburg (County), York (County), Spartanburg (County), Saluda (County), Richland (County), Pickens (County), Orangeburg (County), Oconee (County), Newberry (County)…

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

Other states

AlabamaAlaskaArizonaArkansasCaliforniaColoradoConnecticutDelawareDistrict of ColumbiaFloridaGeorgiaHawaiiIdahoIllinoisIndianaIowaKansasKentuckyLouisianaMaineMarylandMassachusettsMichiganMinnesotaMississippiMissouriMontanaNebraskaNevadaNew HampshireNew JerseyNew MexicoNew YorkNorth CarolinaNorth DakotaOhioOklahomaOregonPennsylvaniaRhode IslandSouth DakotaTennesseeTexasUtahVermontVirginiaWashingtonWest VirginiaWisconsinWyoming

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