Charleston County was named the 10th‑riskiest county in the United States for home insurers in a new report, highlighting rising insurance exposure and higher costs for homeowners and investors across the Lowcountry.
What the ranking means for residents
The report, produced by digital insurance agency Insurify, assigns Charleston County a Home Insurance Risk Index score of 98.9 out of 100, placing it in the top tier of insurer exposure nationwide. The analysis also says the county’s average annual home insurance premium is $5,491, or 86% above the national average.
Those figures matter for anyone who owns property here or is considering a purchase. Insurify notes the numbers are particularly relevant for:
- Second‑home buyers and retirees buying beach houses along the South Atlantic coast
- Investors modeling short‑term rental yields on Isle of Palms, Folly Beach and other barrier islands
- Owners of legacy properties near the Charleston peninsula who face rising renewal costs
The report builds county‑level scores covering 3,136 counties across all 50 states and Washington, D.C., ranking exposure from 0 to 100, with 50 set as the national median.
Why insurers see Charleston as risky
Insurify attributed Charleston’s high risk score to the county’s coastal location and vulnerability to severe storms and flooding. The report cites Hurricane Idalia in 2023 as an example of a loss event that has increased carrier caution. Insurers historically view hurricanes as some of the costliest perils they underwrite, and the riskiest counties cluster along the Gulf and South Atlantic coasts.
Importantly, the report draws a distinction between risk ranking and premium ranking. Charleston sits much higher on the risk index (10th) than it does on the list of counties ranked by premium cost (74th). Insurify suggests that when pricing has not fully caught up to underwriting risk, markets often experience sharper rate increases or tighter coverage availability as carriers adjust.
| Measure | Charleston County |
|---|---|
| Home Insurance Risk Index score | 98.9 / 100 |
| Average annual home insurance premium | $5,491 (86% above national average) |
| Risk rank (national) | 10th |
| Premium rank (national) | 74th |
For Charleston residents, the report underscores immediate planning considerations: insurance should be a front‑of‑mind expense in real estate calculations, and homeowners may face increasing premiums or coverage limits if insurers continue to realign pricing with measured exposure.
Local officials and property owners now confront how to respond to a market where storm sensitivity and flood risk are driving insurer behavior. The Insurify findings add data to ongoing conversations about coastal resilience, building standards, flood mitigation and the financial viability of long‑term ownership in vulnerable neighborhoods.
Insurify’s county rankings and premium data give residents a clearer picture of how national insurer strategies are playing out at the local level — and why insurance costs are becoming a critical factor for anyone with property in the Charleston area.
