What drives the risk for expensive homes in South Carolina
- Catastrophe exposureHurricanes and tropical storms on the coast are the dominant exposure, bringing wind, storm surge and flooding. This is why the state runs a coastal wind pool and a hurricane retrofit grant program. Source
- Wind and hurricane deductiblesSeparate hurricane, wind or named storm deductibles are allowed. Under S.C. Code 38-75-755, insurers must disclose at issuance and each renewal whether one applies, with a worked example for a $100,000 policy and a clear explanation of the event that triggers it, along with available windstorm mitigation discounts. Source
- FloodNFIP building coverage stops at $250,000, so expensive coastal homes on Kiawah, Isle of Palms, Sullivan's Island and Hilton Head usually need excess or private flood coverage above it. Source
South Carolina by the numbers
| Measure | South Carolina | Rank among the states | Detail |
|---|---|---|---|
| Federal major disaster declarations since 2000 | 20 | #38 (tied) of 51 | Most often for hurricane (8), severe ice storm (4), severe storm (4). Berkeley County has been in 13 of them. |
| National Flood Insurance Program claims, 2005–2025 | 22,863 | #9 of 51 | $615.6 million paid; 24% of claims with a known flood zone were outside FEMA’s high-risk zones. |
| Hail reports, 2016–2025 | 1,092 | #28 of 51 | 36 of them 2 inches or larger. Largest stone 3 inches, Spartanburg County, March 2017. |
| Tornadoes, 2016–2025 | 275 | #22 of 51 | 34 rated EF2 or stronger; 1,225 recorded since 1950. |
| Earthquakes of magnitude 4.0+, 2000–2025 | 2 | #22 of 51 | Largest: magnitude 4.1, 12 km ENE of Parksville, South Carolina, February 15, 2014. |
From the public FEMA, NOAA, Storm Prediction Center, USGS and FMCSA records behind each linked report; ranks count all 50 states and Washington, DC unless noted.
When the standard market says no, and what earns credits
- Insurer of last resort and wind poolsThe South Carolina Wind and Hail Underwriting Association (the wind pool) is the residual market for wind and hail in designated coastal areas, and other perils are insured on a separate policy. State law does not allow excess wind coverage until the pool's maximum available limit has been bought. Source
- Mitigation credits and programsSC Safe Home offers grants for roof, opening-protection and shutter retrofits on coastal homes, with the largest awards for roofs that also meet IBHS FORTIFIED Roof standards. Since 2017 it no longer limits eligibility to homes insured for $300,000 or less, though awards depend on income. The state also offers an income tax credit for fortifying a legal residence (the lesser of $1,000 or 25% of cost) and tax-free catastrophe savings accounts for deductibles. Source
Worth knowing in South Carolina
Besides hurricanes, Charleston-area homes carry real earthquake exposure: the 1886 Charleston earthquake is the strongest known on the Eastern Seaboard, and about 70% of South Carolina earthquakes occur in the Coastal Plain. Standard homeowners policies exclude earthquake, so it needs its own coverage. Source
Where high-value homes are in South Carolina
Kiawah Island · Charleston (South of Broad) · Sullivan's Island and Isle of Palms · Hilton Head Island · Mount Pleasant · Greenville
Common questions
Do South Carolina homeowners policies have a separate wind or hurricane deductible?
Separate hurricane, wind or named storm deductibles are allowed. Under S.C. Code 38-75-755, insurers must disclose at issuance and each renewal whether one applies, with a worked example for a $100,000 policy and a clear explanation of the event that triggers it, along with available windstorm mitigation discounts.
Where can an expensive home in South Carolina get coverage if insurers decline it?
The South Carolina Wind and Hail Underwriting Association (the wind pool) is the residual market for wind and hail in designated coastal areas, and other perils are insured on a separate policy. State law does not allow excess wind coverage until the pool's maximum available limit has been bought.
Is flood insurance enough for a high-value home in South Carolina?
NFIP building coverage stops at $250,000, so expensive coastal homes on Kiawah, Isle of Palms, Sullivan's Island and Hilton Head usually need excess or private flood coverage above it.
Sources
- South Carolina: Catastrophe exposure
- South Carolina: Wind and hurricane deductibles
- South Carolina: Flood
- South Carolina: Also worth knowing
General information as of October 2026, not legal advice; confirm current rules with the agency.