Market Overview
Home Prices in Sullivans Island, SC
The median home value in Sullivans Island, SC is $4,536,391 as of mid-2026, according to Zillow's Home Value Index (ZHVI).That's up 5.7% compared to a year ago and up 3.8% from two years prior.
Compared to the U.S. national median of $410,000, homes in Sullivans Island are priced1006% above average. Sullivans Island is part of the Charleston-North Charleston, SC metro area.
Over the past five years, Sullivans Island home values have risen by approximately72.7%, reflecting strong long-term appreciation in this market.
Price History
Sullivans Island Home Price Trend
City Comparison
Sullivans Island vs. National Median
At $4,536,391, homes in Sullivans Island cost 1006% above the national median of $410,000. Buyers in Sullivans Island should expect to pay a premium compared to most U.S. markets.
Affordability
What Does It Cost to Buy in Sullivans Island?
20% Down Payment
$907,278
on $4,536,391
Monthly P&I
$23,659/mo
30-yr @ 6.8%
Total Monthly Est.
~$30,047/mo
incl. taxes & insurance
Income Needed
$1,201,880
gross annual (30% rule)
10% Down Option
$453,639
+ PMI applies
Loan Amount (20% dn)
$3,629,113
at current rates
Estimates assume a 30-year fixed mortgage at 6.8%. Monthly total includes estimated property taxes and homeowner's insurance. Actual costs vary.
FAQ
Frequently Asked Questions
What is the average home price in Sullivans Island, SC?
The median home value in Sullivans Island is $4,536,391 as of mid-2026, according to Zillow's Home Value Index (ZHVI). That's up 5.7% year-over-year.
How much have home prices changed in Sullivans Island?
Over the past year, home values in Sullivans Island have increased by 5.7%. Over five years, prices have risen approximately 72.7%.
How much do I need to earn to buy a home in Sullivans Island?
To comfortably afford the median home price of $4,536,391 with a 20% down payment ($907,278) at today's rates (6.8%), you'd need a gross annual income of approximately $1,201,880. This assumes keeping total housing costs at or below 30% of gross income.
How does Sullivans Island compare to the national average home price?
The national median home value is approximately $410,000. At $4,536,391, homes in Sullivans Island are 1006% above the national average.
What metro area is Sullivans Island part of?
Sullivans Island is part of the Charleston-North Charleston, SC metropolitan area. Home prices and market conditions can vary across the broader metro region.