Residential delivery area · South Carolina
ZIP Code 29487: Wadmalaw Island, SC
ZIP code 29487 uses the postal name Wadmalaw Island, South Carolina and lies entirely in Charleston County (Census 2020 ZIP-county file). About 2,700 people live there (Census Bureau, ACS 2020-2024). Median household income is $105,592 (Census Bureau, ACS 2020-2024). By Census place, 1% of its land lies in Rockville; 99% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Wadmalaw Island · its only residential ZIP
- County
- Charleston County
- Census places
- Rockville
- Metro area
- Charleston-North Charleston, SC
- House district
- SC-1 119th Congress
- State
- South Carolina
- Time zone
- Eastern
- Land area
- 41.9 sq mi · 65 people per sq mi
Where is ZIP code 29487?
29487 centers on 32.658°, -80.184° and covers 41.9 square miles of land plus 8.7 of water. It borders 3 ZIP codes: 29455, 29449, 29438.
The map draws ZIP code areas only. For the streets inside 29487, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 29487 compare with the rest of Charleston County?
| Measure | 29487 | In Charleston County | In SC |
|---|---|---|---|
| People (ACS 2020-2024) | 2,703 | 21st of 29 | 275th of 424 |
| Median household income | $106k | 6th of 20 | 13th of 265 |
| Median home value | $488k | not ranked | not ranked |
29487's median home value is not ranked: its 90% margin of error (±$134,355) is more than a quarter of the figure ($487,900). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
Its median household income is higher than in 84% of U.S. residential ZIP codes, and it is denser than 47% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 29487?
The 2020 Census counted 2,848 people in 29487; the ACS, which samples households over 2020-2024, estimates 2,703. Between the 2010 and 2020 censuses its population grew 4.5% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 2,703±515 (90% margin)
- 2020 Census count
- 2,848+4.5% since 2010 (2,725)
- Households
- 1,059
- Median age
- 50.2
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 29487?
Of the 2,703 people the ACS estimates in 29487, 18.7% are under 18 and 24.8% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (59.0%), then Black (not Hispanic) (29.6%).
- Under 1818.7%
- 18 to 6456.5%
- 65 and older24.8%
- White, not Hispanic59.0%
- Black, not Hispanic29.6%
- Hispanic or Latino6.6%
- Other or two or more3.5%
- Asian, not Hispanic1.2%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 29487 earn?
Median household income is $105,592 (ACS 2020-2024), the 6th highest of the 20 ranked ZIP codes in Charleston County. It rose from $69,018 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $105,592±$20,448
- Income per person
- $64,320
- Below the poverty line
- 4.2%
- Unemployed (of the labor force)
- 1.8%
- Adults 25+ with a bachelor's degree
- 45.8%
- Adjusted gross income per tax return, 2022
- $123,2681,350 returns; wages 43% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 29487?
FHFA's house price index for 29487, built from repeat sales and appraisals of the same homes, rose 102% from 2015 to 2025 and rose 77% from 2020 to 2025, and moved +4.2% in 2025.
- Median home value (owners' estimate)
- $487,900
- Median gross rent
- $1,441
- Homes owned by their occupants
- 93.6%
- Housing units
- 1,354
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 29487?
44 business establishments had a location in this ZIP code in 2023, 6 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction11
- Professional, scientific, and technical services6
- Administrative and support and waste management and remediation services6
- Transportation and warehousing5
- Real estate and rental and leasing3
- Other services (except public administration)3
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 29487?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 29455 | Johns Island | 27,576 | $121k | 5.7 mi |
| 29449 | Hollywood | 8,024 | $57k | 6.3 mi |
| 29438 | Edisto Island | 2,826 | $87k | 10.2 mi |
| 29470 | Ravenel | 5,639 | $86k | 10.9 mi (near) |
| 29439 | Folly Beach | 1,125 | $137k | 13.0 mi (near) |
| 29414 | Charleston | 44,727 | $100k | 13.6 mi (near) |
| 29426 | Adams Run | 1,697 | $64k | 13.6 mi (near) |
| 29412 | Charleston | 39,256 | $102k | 14.0 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.