ZIP Code 29853 — Williston, SC
29853 is a standard (street delivery) ZIP code serving Williston, South Carolina, in Barnwell 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 29853 at a glance
| ZIP code | 29853 |
|---|---|
| Primary city | Williston |
| State | South Carolina (SC) |
| County | Barnwell FIPS 45011 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 5,944 |
| Coordinates | 33.398710, -81.432170 |
How ZIP+4 works in 29853
The four digits after the hyphen encode a delivery segment inside 29853. 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 29853 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 29853.
| ZIP | City | Distance |
|---|---|---|
| 29826 | Elko, SC | 3.9 mi |
| 29856 | Windsor, SC | 7.5 mi |
| 29817 | Blackville, SC | 9.5 mi |
| 29146 | Springfield, SC | 10.8 mi |
| 29812 | Barnwell, SC | 13.3 mi |
| 29809 | New Ellenton, SC | 14.8 mi |
| 29137 | Salley, SC | 15 mi |
| 29803 | Aiken, SC | 16 mi |
| 29113 | Norway, SC | 17.5 mi |
| 29042 | Denmark, SC | 17.6 mi |
| 29164 | Wagener, SC | 17.8 mi |
| 29107 | Neeses, SC | 20 mi |
Questions about 29853
What is the ZIP+4 code for 29853?
29853 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 29853, you need to look up a specific street address to get them.
What city is 29853?
29853 is assigned to Williston, South Carolina, in Barnwell 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.