Sullivan’s Island is coastal living at its most refined. Just beyond the entrance to Charleston Harbor, this small barrier island pairs wide, pristine beaches with some of the most distinctive and beautifully designed homes in South Carolina. Architecture here ranges from classic Lowcountry to striking modern builds, all shaped by a shared respect for the landscape and the water that surrounds it.
Life on Sullivan’s Island moves at a deliberate pace. Residents bike to the beach, gather at beloved local restaurants, and protect the island’s quiet, residential feel. With strict zoning, limited commercial development, and front-row access to the Atlantic, Sullivan’s Island offers rare privacy, enduring value, and a beach lifestyle that feels intentionally understated.
2,127 people live in Sullivans Island, where the median age is 52.9 and the average individual income is $120,592. Data provided by the U.S. Census Bureau.
Total Population
Median Age
Population Density Population Density This is the number of people per square mile in a neighborhood.
Average individual Income
Sullivans Island has 817 households, with an average household size of 2.6. Data provided by the U.S. Census Bureau. Here’s what the people living in Sullivans Island do for work — and how long it takes them to get there. Data provided by the U.S. Census Bureau. 2,127 people call Sullivans Island home. The population density is 851.47 and the largest age group is Data provided by the U.S. Census Bureau.
Total Population
Population Density Population Density This is the number of people per square mile in a neighborhood.
Median Age
Men vs Women
Population by Age Group
0-9 Years
10-17 Years
18-24 Years
25-64 Years
65-74 Years
75+ Years
Education Level
Total Households
Average Household Size
Average individual Income
Households with Children
With Children:
Without Children:
Marital Status
Blue vs White Collar Workers
Blue Collar:
White Collar:
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