ZIP Code 29487 — Wadmalaw Island, SC
29487 is a standard (street delivery) ZIP code serving Wadmalaw Island, South Carolina, in Charleston County. To mail something here you only need these five digits — but the four-digit extension narrows delivery to a single point, and it is what USPS bulk postage discounts are priced on.
ZIP code 29487 at a glance
| ZIP code | 29487 |
|---|---|
| Primary city | Wadmalaw Island |
| State | South Carolina (SC) |
| County | Charleston FIPS 45019 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 2,703 |
| Coordinates | 32.656910, -80.184760 |
How ZIP+4 works in 29487
The four digits after the hyphen encode a delivery segment inside 29487. In practice one segment usually means:
- One side of one block — odd numbers on a street between two cross streets
- A single large building, or one floor of it
- A group of PO boxes, sometimes a single box
- A single business that receives enough mail to warrant its own code
That is why 29487 has no single ZIP+4: two neighbors across the street from each other usually have different ones. Enter a street address above and we will return the exact nine-digit code along with the standardized USPS address format.
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 29487.
| ZIP | City | Distance |
|---|---|---|
| 29455 | Johns Island, SC | 6.1 mi |
| 29449 | Hollywood, SC | 6.4 mi |
| 29438 | Edisto Island, SC | 9.7 mi |
| 29470 | Ravenel, SC | 11.6 mi |
| 29414 | Charleston, SC | 13.7 mi |
| 29412 | Charleston, SC | 14.1 mi |
| 29426 | Adams Run, SC | 14.3 mi |
| 29407 | Charleston, SC | 14.6 mi |
| 29439 | Folly Beach, SC | 14.9 mi |
| 29409 | Charleston, SC | 16.2 mi |
| 29425 | Charleston, SC | 16.3 mi |
| 29401 | Charleston, SC | 16.7 mi |
Questions about 29487
What is the ZIP+4 code for 29487?
29487 is the five-digit ZIP code. The ZIP+4 adds four more digits that identify a specific delivery point — usually one side of a city block, a single building, or a group of PO boxes. Because those four digits change from address to address within 29487, you need to look up a specific street address to get them.
What city is 29487?
29487 is assigned to Wadmalaw Island, South Carolina, in Charleston County.
Do I need to use the ZIP+4?
It is optional for ordinary mail, but it speeds up sorting and it is required for most USPS bulk-mail postage discounts. Many address-verification and e-commerce systems also use ZIP+4 to confirm a delivery point exists.
Need thousands of these?
Upload a CSV and get ZIP+4, county, carrier route, and delivery-point data appended to every row — or call the API directly.