Sullivan's Island housing market
Home prices on Sullivan's Island: The median home sold for $3,598,286 in Jul–Sep 2026 (Redfin); the typical home is worth $4,581,000, up 8.2% in a year (Zillow).
The typical home on Sullivan's Island is worth $4,581,000 according to Zillow, up 8.2% from a year earlier. Homes that sold in Jul–Sep 2026 went for a median $3,598,286 and took a median 123 days to go under contract. That's based on only 7 sales, so expect these figures to swing month to month. At today's 7.40% 30-year rate, a buyer putting 20% down would pay about $25,374 a month in principal and interest, about 158% of the town's median household income, before taxes and insurance.
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How hot is Sullivan's Island's market?
* Fewer than 10 sales in the 3-month window; small-sample figures swing a lot. Home value: Zillow Home Value Index. Sales, days on market and supply: Redfin, a national real estate brokerage, 3-month rolling. Income, rent and ownership: U.S. Census Bureau ACS 5-year. Payment excludes taxes, insurance, HOA and mortgage insurance.
What it costs to live on Sullivan's Island
How much does a house cost on Sullivan's Island?
The typical home on Sullivan's Island is worth $4,581,000 (Zillow, Sep 2026), up 8.2% from a year earlier. Homes that sold in Jul–Sep 2026 went for a median $3,598,286 (Redfin). That median rests on only 7 sales, so it swings from month to month. By home value that is the highest of the 27 towns tracked here, about 7.8 times the City of Charleston figure ($587,511).
What is the monthly payment on a typical Sullivan's Island home?
About $25,374 a month in principal and interest, at today's 7.40% 30-year fixed rate with 20% down (a $916,200 down payment). That leaves out property taxes, homeowners and flood insurance, and HOA dues, which vary from house to house.
How much is rent on Sullivan's Island?
The Census Bureau puts the median gross rent, which includes utilities and counts existing leases, at $2,375 a month (2020–2024).
How do housing costs on Sullivan's Island compare with local incomes?
The median household on Sullivan's Island earns $192,813 a year (Census, 2020–2024). The payment on a typical home would take about 158% of that income, before taxes and insurance. The typical home is worth 23.8 times the median household income.
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Typical figures for the whole town, not an estimate for any one home or household. Sources are listed above.
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