ZIP Code 29379 — Union, SC
29379 is a standard (street delivery) ZIP code serving Union, South Carolina, in Union 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 29379 at a glance
| ZIP code | 29379 |
|---|---|
| Primary city | Union |
| State | South Carolina (SC) |
| County | Union FIPS 45087 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 17,607 |
| Coordinates | 34.687720, -81.604030 |
How ZIP+4 works in 29379
The four digits after the hyphen encode a delivery segment inside 29379. 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 29379 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 29379.
| ZIP | City | Distance |
|---|---|---|
| 29321 | Buffalo, SC | 8.1 mi |
| 29353 | Jonesville, SC | 10.3 mi |
| 29364 | Lockhart, SC | 10.6 mi |
| 29031 | Carlisle, SC | 11.5 mi |
| 29178 | Whitmire, SC | 13 mi |
| 29331 | Cross Anchor, SC | 14.7 mi |
| 29374 | Pauline, SC | 15.4 mi |
| 29372 | Pacolet, SC | 16.2 mi |
| 29335 | Enoree, SC | 16.9 mi |
| 29742 | Sharon, SC | 17.8 mi |
| 29373 | Pacolet Mills, SC | 18.1 mi |
| 29302 | Spartanburg, SC | 19.6 mi |
Questions about 29379
What is the ZIP+4 code for 29379?
29379 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 29379, you need to look up a specific street address to get them.
What city is 29379?
29379 is assigned to Union, South Carolina, in Union 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.