Harbor Island, SC Real Estate Listings & Homes for Sale

New On Site Today

$325,000

1 of 52

Harbor Island | St. Helena Island

1 beds

1 baths

1 ½ baths

794 sqft

On Site: Today

MLS ID#: 197104
© 2026 Lowcountry Regional MLS. Listing courtesy of Katie Gambla of Keller Williams.

$699,000

1 of 42

Harbor Island | Harbor Island

4 beds

2 baths

2,122 sqft

On Site: 11 Days

MLS ID#: 197187
© 2026 Lowcountry Regional MLS. Listing courtesy of Katharine Harrelson of Greco Group Brokered by eXp.

$599,000

1 of 47

Harbor Island | St. Helena Island

3 beds

3 baths

1,337 sqft

On Site: 12 Days

MLS ID#: 197124
© 2026 Lowcountry Regional MLS. Listing courtesy of Katharine Harrelson of Greco Group Brokered by eXp.

$439,000

1 of 43

Harbor Island | Harbor Island

2 beds

2 baths

1 ½ baths

1,080 sqft

On Site: 22 Days

MLS ID#: 197075
© 2026 Lowcountry Regional MLS. Listing courtesy of Jennifer Helms of BHHS Bay Street Realty.

$160,000

1 of 16

Harbor Island | Harbor Island

0.18 acres

On Site: 26 Days

MLS ID#: 197032
© 2026 Lowcountry Regional MLS. Listing courtesy of Eric Claman of Palmetto Moon Realty, LLC.

$245,000

1 of 36

Harbor Island | St. Helena Island

1 beds

1 baths

690 sqft

On Site: 28 Days

MLS ID#: 196989
© 2026 Lowcountry Regional MLS. Listing courtesy of Stephanie Graham of BHHS Bay Street Realty.

$1,150,000

1 of 75

Beachwalk | St. Helena Island

3 beds

3 baths

1 ½ baths

2,037 sqft

On Site: 31 Days

$329,000

1 of 27

Cedar Reef Vill | Harbor Island

1 beds

1 baths

1 ½ baths

806 sqft

On Site: 53 Days

$329,000

1 of 25

Cedar Reef Vill | St. Helena Island

1 beds

1 baths

1 ½ baths

794 sqft

On Site: 53 Days

$75,000

1 of 9

Ocean Marsh | Fripp Island

0.29 acres

On Site: 54 Days

43 Harbor Island Real Estate Listings