ZIP Code 29546 — Gresham, SC
29546 is a standard (street delivery) ZIP code serving Gresham, South Carolina, in Marion 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 29546 at a glance
| ZIP code | 29546 |
|---|---|
| Primary city | Gresham |
| State | South Carolina (SC) |
| County | Marion FIPS 45067 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 2,683 |
| Coordinates | 33.890010, -79.351510 |
How ZIP+4 works in 29546
The four digits after the hyphen encode a delivery segment inside 29546. 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 29546 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 29546.
| ZIP | City | Distance |
|---|---|---|
| 29555 | Johnsonville, SC | 7.2 mi |
| 29519 | Centenary, SC | 8.7 mi |
| 29544 | Galivants Ferry, SC | 11.1 mi |
| 29554 | Hemingway, SC | 13.4 mi |
| 29583 | Pamplico, SC | 13.8 mi |
| 29527 | Conway, SC | 13.9 mi |
| 29589 | Rains, SC | 14.6 mi |
| 29511 | Aynor, SC | 15 mi |
| 29571 | Marion, SC | 17.6 mi |
| 29580 | Nesmith, SC | 20 mi |
| 29574 | Mullins, SC | 20 mi |
| 29526 | Conway, SC | 21.8 mi |
Questions about 29546
What is the ZIP+4 code for 29546?
29546 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 29546, you need to look up a specific street address to get them.
What city is 29546?
29546 is assigned to Gresham, South Carolina, in Marion 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.