Housing in Harbor Island, SC

Home values, rent, ownership rates, and housing market data

Housing Market Snapshot

Source: Redfin — January 2026

Median Sale Price

$286,750

Median List Price

$529,000

Price Per Sq Ft

$305

Days on Market

612

Active Inventory

33

Months of Supply

16.5

Buyer's market

Price Trends

Source: Redfin
Sale Price ↓ 59.5%List Price ↓ 32.6%Mar 24 → Jan 26

Market Competitiveness

Source: Redfin

Sold Above List

0.0%

Off Market in 2 Weeks

20.0%

Sale-to-List Ratio

93.4%

Buyer's market

Sold Above Asking
0.0%
Under Contract in 2 Wks
20.0%
Listings with Price Drops
6.1%

Market Activity

Source: Redfin

Homes Sold

2

New Listings

6

Pending Sales

5

Homes Sold ↑ 0.0%New Listings ↓ 25.0%Pending ↑ 66.7%Mar 24 → Jan 26

Price Per Square Foot

Source: Redfin

Median Sale $/SF

$305

Median List $/SF

$396

Sale $/SF ↓ 19.1%List $/SF ↓ 7.9%Mar 24 → Jan 26

Harbor Island vs Similar Cities

Source: Census ACS / Redfin (2023)

Compared to cities with under 10,000 residents. Harbor Island is highlighted.

Median Home Value

Median Price Per Sq Ft

Census Housing Data

Source: U.S. Census Bureau ACS (2023)

Median Home Value

$284,500

Median Rent

N/A

Total Housing Units

478

Vacancy Rate

69.5%

Owner Occupied

84.3%

Renter Occupied

15.8%

Median Property Tax

$5,544

per year

Monthly Cost (w/ Mortgage)

N/A

Housing Types

Single Family
75.9%
Multi-Family
24.1%
Mobile Home
0.0%

The current median sale price in Harbor Island, SC is $286,750 according to Redfin data. Homes spend a median of 612 days on the market. 0.0% of homes sold above asking price. The market has 16.5 months of supply. The median price per square foot is $305. About 84.3% of housing units are owner-occupied. The median year homes were built is 1995. There are 478 total housing units.