Harbor Island, SC housing market
Homes typically sell in 133 days, below asking.
Home values, sales, trends and how Harbor Island compares with the towns next door — updated as new data is published.
Harbor Island at a glance
A balanced market
About 5 months of supply: neither buyers nor sellers have a clear edge.
Home prices up 65% in 5 years
The federal house price index for the ZIP code around Harbor Island rose 65% over the past 5 years, faster than across South Carolina (60%). Last year prices fell 12%.
Show as a table
| Year | Change that year | Since 2000 | South Carolina since 2000 |
|---|---|---|---|
| 2025 | −12% | +140% | +164% |
| 2024 | +2.9% | +173% | +155% |
| 2023 | +18% | +166% | +142% |
| 2022 | +38% | +125% | +120% |
| 2021 | +13% | +64% | +84% |
| 2020 | +9.8% | +45% | +65% |
| 2019 | −0.8% | +32% | +59% |
| 2018 | −1.5% | +33% | +51% |
| 2017 | +8.8% | +35% | +43% |
| 2016 | +2.8% | +24% | +35% |
| 2015 | +4.3% | +21% | +29% |
| 2014 | +2.6% | +16% | +24% |
| 2013 | −10% | +13% | +20% |
| 2012 | +0.4% | +26% | +20% |
| 2011 | −12% | +25% | +22% |
| 2010 | −6.6% | +43% | +27% |
| 2009 | −5.8% | +53% | +35% |
| 2008 | −2.2% | +62% | +39% |
| 2007 | +8.1% | +66% | +38% |
| 2006 | +9% | +53% | +33% |
| 2005 | +15% | +41% | +23% |
| 2004 | +5.8% | +22% | +15% |
| 2003 | +3.4% | +16% | +10% |
| 2002 | +3.8% | +12% | +7.9% |
| 2001 | +7.7% | +7.8% | +5.1% |
| 2000 | — | — | — |
Federal Housing Finance Agency House Price Index (annual, developmental) for ZIP code 29920, weighted by land area. It tracks repeat sales and appraisals of the same homes, so it shows how prices changed, not what homes cost.
Owners, rent & taxes
U.S. Census Bureau, ACS 2020-2024 · figures for a place this size carry wide margins of error.
A two-bedroom rents for about $1,640
HUD's Fair Market Rent for a two-bedroom in Harbor Island is $1,640 a month, utilities included: roughly what a modest, recently rented unit costs.
Studio $1,430 · 4 bedrooms $2,530
U.S. Department of Housing and Urban Development, FY2026 Fair Market Rents by ZIP code (29920; Beaufort County, SC HUD Metro FMR Area), weighted by land area. A Fair Market Rent is the 40th-percentile rent plus utilities for a standard unit. Median rent: U.S. Census Bureau, American Community Survey.
Home values: Zillow Home Value Index (ZHVI), Zillow Research. Sales, days on market and supply: Redfin Data Center, May 2026. Income, ownership, taxes and rent: U.S. Census Bureau, American Community Survey. Price trend: Federal Housing Finance Agency House Price Index. Fair Market Rents: U.S. Department of Housing and Urban Development. Listings link to their publishers.