ZIP Code 29940 — Seabrook, SC
29940 is a standard (street delivery) ZIP code serving Seabrook, South Carolina, in Beaufort 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 29940 at a glance
| ZIP code | 29940 |
|---|---|
| Primary city | Seabrook |
| State | South Carolina (SC) |
| County | Beaufort FIPS 45013 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 3,256 |
| Coordinates | 32.552400, -80.675110 |
How ZIP+4 works in 29940
The four digits after the hyphen encode a delivery segment inside 29940. 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 29940 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 29940.
| ZIP | City | Distance |
|---|---|---|
| 29904 | Beaufort, SC | 5.8 mi |
| 29907 | Beaufort, SC | 7.8 mi |
| 29941 | Sheldon, SC | 8.2 mi |
| 29906 | Beaufort, SC | 8.6 mi |
| 29446 | Green Pond, SC | 9.4 mi |
| 29935 | Port Royal, SC | 11.8 mi |
| 29945 | Yemassee, SC | 12.1 mi |
| 29902 | Beaufort, SC | 12.3 mi |
| 29905 | Parris Island, SC | 13.8 mi |
| 29920 | Saint Helena Island, SC | 14.9 mi |
| 29912 | Coosawhatchie, SC | 15 mi |
| 29452 | Jacksonboro, SC | 15.7 mi |
Questions about 29940
What is the ZIP+4 code for 29940?
29940 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 29940, you need to look up a specific street address to get them.
What city is 29940?
29940 is assigned to Seabrook, South Carolina, in Beaufort 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.