Natural Disaster Risk in Harleyville

Natural Hazard Profile: Harleyville, South Carolina

Located near the Atlantic Coast of the southeastern United States in Dorchester County, Harleyville is a small community of about 1,997. The humid subtropical climate that characterizes this part of South Carolina — marked by hot, humid summers and mild winters — directly influences the types and severity of natural hazards present, making Harleyville a community where hazard awareness has real practical value.

Harleyville's overall natural disaster risk is rated 6.7/10 (High) by FEMA's National Risk Index. Hurricane risk defines the natural hazard environment here, requiring residents to maintain seasonal preparedness plans and insurance coverage for wind and flood damage. Secondary hazards include earthquake and coastal flood.

Relative to other U.S. communities, Harleyville's natural disaster risk is well above the U.S. national average of 4.5/10, near the 6.6/10 state average. The hazard distribution here is led by hurricane and earthquake, as measured by FEMA across Dorchester County. While city-specific sub-county variation exists, these scores represent the best available federal risk estimate.

Harleyville's high risk designation reflects meaningful exposure to natural hazards. Residents should verify that their insurance covers the area's primary risks, prepare a family emergency plan, and stay informed about seasonal hazard peaks through local weather and emergency management services.