Natural Disasters in Harleyville, SC

Hazard risk, disaster history, and FEMA data

Natural Hazard Risk

Source: FEMA National Risk Index

Risk Score

93.7

Relatively Moderate

Expected Annual Loss

95.1

Score (0-100)

Social Vulnerability

16.0

Score (0-100)

Community Resilience

57.4

Score (0-100)

Top Hazard Risks

Earthquake97.9Hurricane97.9Ice Storm83.4
HazardRisk Score
Earthquake97.9
Hurricane97.9
Ice Storm83.4
Lightning82.7
Wildfire79.0
Tornado74.8
Heat Wave69.2
Winter Weather68.0
Cold Wave67.9
Coastal Flood59.2
Hail45.7
Drought27.7
Strong Wind18.7
Landslide14.0

Scores range from 0 (lowest risk) to 100 (highest risk) relative to all U.S. communities. Data from FEMA National Risk Index.

Disaster Declarations

Source: FEMA OpenFEMA

Total Declarations

25

Most Recent

Winter Storm

Jan 2026

Most Common Type

Hurricane

15 declarations

DateTypeDeclaration
Jan 23, 2026Winter StormSEVERE WINTER STORM
Sep 29, 2024Tropical StormTROPICAL STORM DEBBY
Aug 5, 2024Tropical StormHURRICANE DEBBY
Aug 31, 2023HurricaneHURRICANE IDALIA
Nov 21, 2022HurricaneHURRICANE IAN
Sep 29, 2022HurricaneHURRICANE IAN
Mar 27, 2020BiologicalCOVID-19 PANDEMIC
Mar 13, 2020BiologicalCOVID-19
Sep 30, 2019HurricaneHURRICANE DORIAN
Sep 1, 2019HurricaneHURRICANE DORIAN
Sep 16, 2018HurricaneHURRICANE FLORENCE
Sep 10, 2018HurricaneHURRICANE FLORENCE
Oct 16, 2017HurricaneHURRICANE IRMA
Sep 7, 2017HurricaneHURRICANE IRMA
Oct 11, 2016HurricaneHURRICANE MATTHEW
Oct 6, 2016HurricaneHURRICANE MATTHEW
Oct 5, 2015FloodSEVERE STORMS AND FLOODING
Oct 3, 2015Severe StormSEVERE STORMS AND FLOODING
Mar 12, 2014Severe Ice StormSEVERE WINTER STORM
Feb 12, 2014Severe Ice StormSEVERE WINTER STORM

Showing 20 of 25 declarations

Individual Assistance

Source: FEMA Housing Assistance

Total IA Registrations

2,179

Total IA Distributed

$1,817,978

Repair/Replace

$902,279

Rental Assistance

$608,671

DisasterRegistrationsTotal IA $Avg Damage
DR-42411,524$1,072,191$670
DR-4286477$472,864$1,712
DR-454237$98,878$2,410
DR-449216$86,973—
DR-4829123$86,633—
DR-15662$440$388

Individual and household assistance for homeowners and renters affected by federally declared disasters.

Flood Insurance (NFIP)

Source: FEMA NFIP

Total Claims

779

Total Claims Paid

$16,848,166

Avg Claim Payout

$21,628

County-level NFIP data from FEMA National Flood Insurance Program.

Disaster Recovery Spending

Source: FEMA Public Assistance

Total Federal Spending

$8,630,493

Disasters with PA

11

Total Projects

106

DisasterTypeProjectsFederal $
DR-4166Severe Ice Storm14$3,284,383
DR-4241Flood33$2,146,371
DR-4464Hurricane11$935,578
DR-4286Hurricane14$780,694
DR-4394Hurricane5$374,846
DR-1299Hurricane8$330,457
DR-3597Hurricane2$219,302
DR-4835Tropical Storm10$184,769
DR-4677Hurricane2$149,144
DR-4492Biological4$126,639
DR-4346Other3$98,309

Hazard Mitigation

Source: FEMA Hazard Mitigation Assistance

Mitigation Projects

23

Federal Funding

$12,937,899

Properties Protected

19

Avg Benefit-Cost Ratio

2.04

BCR

Top Mitigation Project Types

Project TypeProjectsFederal $
601.1: Generators5$77,366
400.1: Utility Protective Measures (Electric, Gas, etc.)5$8,727,838
200.1: Acquisition of Private Real Property (Structures and Land) - Riverine4$503,273
601.2: Generators - Regular2$3,482,062
205.8: Retrofitting Public Structures - Wind2$77,361

Federally funded projects to reduce future disaster risk. Only includes completed or obligated projects.

Harleyville has a relatively moderate overall natural hazard risk rating according to FEMA's National Risk Index. The top hazard risks are earthquake, hurricane, ice storm. The area has had 25 federal disaster declarations. The most common disaster type is hurricane (15 declarations). 779 flood insurance claims have been filed in the area. FEMA has obligated $8,630,493 in public assistance recovery funding. $1,817,978 has been distributed in individual assistance to disaster-affected residents. 23 hazard mitigation projects have been funded to reduce future risk.