Harbor Island, SC Real Estate Listings & Homes for Sale

$689,000

1 of 55

Harbour Key | Harbor Island

3 beds

3 baths

1,696 sqft

On Site: 22 Days

MLS ID#: 189181
© 2025 Lowcountry Regional MLS. Listing courtesy of Lorena Stroud of Coastal Real Estate Solutions.

$639,000

1 of 59

Ocean Marsh | Harbor Island

3 beds

3 baths

1,650 sqft

On Site: 25 Days

MLS ID#: 189686
© 2025 Lowcountry Regional MLS. Listing courtesy of Heather Baldwin of The HomesFinder Realty Group.

$799,000

1 of 96

Sea Cottage | St. Helena Island

3 beds

2 baths

1 ½ baths

1,950 sqft

On Site: 25 Days

MLS ID#: 189447
© 2025 Lowcountry Regional MLS. Listing courtesy of Megan Feight of Daniel Ravenel Sotheby's Inte.

$1,400,000

1 of 48

Beachwalk | Harbor Island

4 beds

3 baths

1 ½ baths

2,970 sqft

On Site: 33 Days

MLS ID#: 189440
© 2025 Lowcountry Regional MLS. Listing courtesy of Eric Claman of Palmetto Moon Realty, LLC.

$249,000

1 of 56

Beach Hse L-Bld | St. Helena Island

1 beds

1 baths

714 sqft

On Site: 47 Days

MLS ID#: 189272
© 2025 Lowcountry Regional MLS. Listing courtesy of Gregory Bennett of Beaufort Realty Consultants.

Price Reduced

$2,199,000

1 of 66

Ocean Lot | Harbor Island

4 beds

3 baths

1 ½ baths

2,598 sqft

On Site: 50 Days

MLS ID#: 189196
© 2025 Lowcountry Regional MLS. Listing courtesy of Allison Greco of Greco Group Brokered by eXp.

$449,000

1 of 34

Ocean V. M Bldg | Harbor Island

2 beds

2 baths

1,150 sqft

On Site: 60 Days

$259,000

1 of 51

Beach Hse L-Bld | Harbor Island

1 beds

1 baths

1 ½ baths

690 sqft

On Site: 62 Days

$464,900

1 of 53

Cedar Reef Vill | St. Helena Island

2 beds

2 baths

1 ½ baths

1,080 sqft

On Site: 68 Days

$349,900

1 of 34

Cedar Reef Vill | Harbor Island

1 beds

2 baths

794 sqft

On Site: 68 Days

42 Harbor Island Real Estate Listings