The 2025 property tax bill for 220 E Mariners Cay was $1,737, up 5.9% from the year before.
Source: Charleston County assessment roll, as of August 1, 2025
Property Jurisdictions
Type
Name
State
South Carolina
County
Charleston County
Municipality
Folly Beach City
Unified School District
Charleston County School District (PK - 12)
Tax Bill & Assessment History
Year
Tax Bill
Assessed Value
Assessed Market Value
2025
$1,737.00 (+5.85%)
$460,000 (+2,775%)Land $80,500Building $379,500
$531,300Land $132,800Building $398,500
2024
$1,641.00
$16,000
2022
$1,586.00
$16,000
$400,000Land $70,000Building $330,000
2020
$400,000Land $70,000Building $330,000
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
Flood
FEMA maps place 220 E Mariners Cay in Zone AE, a high-risk flood area; flood insurance is required for federally backed loans.
Source: FEMA National Flood Hazard Layer, effective September 9, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
FEMA Flood Zone
Zone AE high risk
100-Year Floodplain
Yes 1% annual chance
Floodway
No
Base Flood Elevation
11.0 ft
Flood Insurance Requirement
Required federally backed loans
Flood Insurance Cost
Premium on File median of 121 individual policies
Community Rating System
Class 3 (35% premium discount)
Nearby Flood Policies
385 units insured incl. 264 condo units
Nearby Flood Claims
21 (2015–2024)
Most Recent Claim
Jan 2024 · tidal / storm surge
Claims by Event
Hurricane Irma, Sep 2017 · 12 claims
Hurricane Matthew, Oct 2016 · 2 claims
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Wildfire
Wildfire risk around 220 E Mariners Cay is moderate, ranking above 43% of the US, with a 0.06% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
Wildfire Risk
Moderate above 43% of the US · lower than 67% of South Carolina
Wildfire Likelihood
0.06% annual chance
Exposure
None beyond ember reach
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Drinking Water
Source: EPA Safe Drinking Water Information System, as of September 2026
Water System
FOLLY BEACH CITY OF (1010005) serves 5,086 people · EPA ID SC1010005
Water Source
Purchased surface water from CHARLESTON WATER SYSTEM
Last State Inspection
Mar 2025
Lead
Under 1 ppb (2023–2025) action level 15 ppb
Violations Reported to EPA
Water Quality
None last 10 years
Treatment and Procedure
None last 10 years
Monitoring and Reporting
None last 3 years
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes. The service area is an EPA estimate; the actual supplier may differ.
Internet Providers
Source: FCC Broadband Data Collection, based on 75 locations within half a mile, as of December 31, 2025