ZIP 29403 · Charleston County

Charleston, SC Homeowners Insurance

Homeowners insurance market metrics for ZIP 29403, Charleston, South Carolina.

18.7%
Loss ratio
7.68%
Nonrenewal rate
#15 of 366
South Carolina rank
1,504
Policies

The verdict

At $3,557/yr, Charleston, SC (ZIP 29403) sits in the 97th percentile nationally for homeowners insurance costs, 100% above the U.S. average.

$3,557
Avg premium (2022)
+100%
vs U.S. average
-3.3%
since 2018
97th
national percentile

According to U.S. Treasury Federal Insurance Office data. How we calculate the percentile and national comparison: methodology.

Avg Premium (2022)
$3,557/yr
-3.3% since 2018
Loss Ratio
18.7%
Claims paid vs premiums
Claim Frequency
2.34%
Avg severity: $28,427
Nonrenewal Rate
7.68%
+372.3% change

Data Snapshot: ZIP 29403 (Charleston, SC)

For 2022, the average cost of homeowners insurance in ZIP 29403 (Charleston, SC) runs $3,557 per year, based on U.S. Treasury FIO's ZIP-level tracking across approximately 1,504 reported policies. That is 100% above the national average of $1,776 per year, placing this ZIP in the 97th percentile nationally. Against South Carolina's average of $1,765, ZIP 29403 is 102% above, ranking #15 of 366 tracked ZIPs in South Carolina by premium. The closest-priced peer within South Carolina is Pawleys Island (ZIP 29585) at $3,621, essentially matching this ZIP's rate.

With a loss ratio of 18.7%, insurers retained a working margin after claims in ZIP 29403. Claim frequency, the share of policies with at least one claim, is 2.34%, and the average claim severity (amount paid per claim) is $28,427. Insurers decline to renew 7.68% of policies in ZIP 29403 at expiration, a rise of 372.3% over the past five years; a rising rate typically signals carriers retreating from higher-risk markets.

Across 5 years (2018–2022), premiums in ZIP 29403 have fallen by 3.3%, ranging from $3,438 to $3,678 with a five-year average of $3,574, an annualized rate of -0.8% per year.

How to read these numbers

The figures on this page come from the U.S. Treasury Federal Insurance Office, which collects homeowners insurance premium and claims data directly from the largest property insurers in the country. Because the data is aggregated at the ZIP-code level and averaged across many policies, it describes the typical cost in an area rather than a quote for any single home. Two houses on the same street can pay very different premiums depending on their age, construction type, roof condition, prior claims, and the specific coverage limits and deductibles the homeowner selects. The loss ratio shows how much of every premium dollar insurers paid back out as claims; a ratio above one means carriers lost money locally, which often precedes rate increases or carrier exits. Rising nonrenewal and claim frequency reveal how stressed the local market has become. Use these figures to gauge the direction and scale of costs in your area, then request quotes from several licensed carriers before buying or renewing a policy. FIO data aggregates voluntary reporting from the 40 largest homeowners insurers, covering roughly 80% of the U.S. market, so figures represent market averages rather than individual policy quotes; your own premium will vary with dwelling value, deductible, coverage limits, construction type, and insurer-specific underwriting. This page is educational research only and is not insurance advice, homeowners should request quotes from multiple licensed carriers or an independent agent before purchasing or renewing coverage.

How ZIP 29403 Compares

vs National Average
$3,557 vs $1,776
100% above national avg
vs South Carolina Average
$3,557 vs $1,765
102% above state avg
National Percentile
97th percentile
More expensive than most ZIPs

Premium History

Average premium in ZIP 29403, 2018–2022

$3,400$3,500$3,600$3,700 20182019202020212022 $3,557
Average homeowners premium per year in ZIP 29403.
Year Avg Premium YoY Change
2018 $3,678 -
2019 $3,652 -0.7%
2020 $3,546 -2.9%
2021 $3,438 -3.0%
2022 $3,557 +3.5%

5-Year Trend Summary

5-Year Avg Premium
$3,574
Premium Range
$3,438 - $3,678
Annual Change Rate
-0.8% per year
Years of Data
5 (2018-2022)

What this means for ZIP 29403

This ZIP runs well above the U.S. average, shop coverage actively and budget for it.

FIO figures are ZIP-level market averages across the largest insurers (~80% of the market), not a quote for any single home. Request quotes from multiple licensed carriers before buying or renewing.

Source: U.S. Department of the Treasury, Federal Insurance Office (FIO) Homeowners Insurance Data (2018-2022). Premiums are ZIP-level averages and may not reflect individual policy costs U.S. Department of the Treasury, Federal Insurance Office (FIO) Homeowners Insurance Data (2018-2022). Premiums are ZIP-level averages and may not reflect individual policy costs

Frequently Asked Questions

How much is homeowners insurance in ZIP 29403?
ZIP 29403 (Charleston, SC) sits in the pricier end of the national market: homeowners insurance here averages $3,557 per year as of 2022, in the 97th percentile nationally, #15 of 366 ZIPs in South Carolina. Premiums have changed -3.3% over the past 5 years.
What affects homeowners insurance costs in Charleston, SC?
Three figures shape homeowners insurance costs in ZIP 29403: claims frequency (2.34%), loss ratio (18.7%), and nonrenewal rate (7.68%), together placing this ZIP at the 97th national percentile for cost.
Is homeowners insurance expensive in ZIP 29403 compared to the national average?
ZIP 29403 premiums of $3,557/yr are 100% above the national average of $1,776/yr. This ZIP is in the 97th percentile nationally.
What is the nonrenewal rate in ZIP 29403?
The nonrenewal rate in ZIP 29403 is 7.68%, a rise of 372.3% over the past 5 years in South Carolina.
How have premiums trended in ZIP 29403 over 5 years?
ZIP 29403 premiums spanned $3,438 to $3,678 across the 2018-2022 window, a 5-year average of $3,574. The annualized change rate is -0.8% per year.
How does ZIP 29403 compare to the South Carolina state average?
ZIP 29403 has an average premium of $3,557/yr compared to the South Carolina state average of $1,765/yr. This ZIP is 102% above the state average, ranking #15 of 366 tracked ZIPs in South Carolina by premium.

Every figure on PlainInsure is rendered directly from U.S. Treasury Federal Insurance Office data, no number is typed in by an editor. This page draws directly on U.S. Treasury FIO data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.