ZIP Code 29929 — Islandton, SC
29929 is a standard (street delivery) ZIP code serving Islandton, South Carolina, in Colleton 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 29929 at a glance
| ZIP code | 29929 |
|---|---|
| Primary city | Islandton |
| State | South Carolina (SC) |
| County | Colleton FIPS 45029 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 1,276 |
| Coordinates | 32.938050, -80.943400 |
How ZIP+4 works in 29929
The four digits after the hyphen encode a delivery segment inside 29929. 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 29929 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 29929.
| ZIP | City | Distance |
|---|---|---|
| 29082 | Lodge, SC | 7 mi |
| 29475 | Ruffin, SC | 7.5 mi |
| 29493 | Williams, SC | 9.4 mi |
| 29924 | Hampton, SC | 10.4 mi |
| 29944 | Varnville, SC | 11.4 mi |
| 29911 | Brunson, SC | 11.7 mi |
| 29081 | Ehrhardt, SC | 12.1 mi |
| 29916 | Early Branch, SC | 14.5 mi |
| 29481 | Smoaks, SC | 14.6 mi |
| 29488 | Walterboro, SC | 15.7 mi |
| 29827 | Fairfax, SC | 17.6 mi |
| 29923 | Gifford, SC | 18.2 mi |
Questions about 29929
What is the ZIP+4 code for 29929?
29929 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 29929, you need to look up a specific street address to get them.
What city is 29929?
29929 is assigned to Islandton, South Carolina, in Colleton 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.