ZIP Code 29180 — Winnsboro, SC
29180 is a standard (street delivery) ZIP code serving Winnsboro, South Carolina, in Fairfield 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 29180 at a glance
| ZIP code | 29180 |
|---|---|
| Primary city | Winnsboro |
| State | South Carolina (SC) |
| County | Fairfield FIPS 45039 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 11,730 |
| Coordinates | 34.364720, -81.098210 |
How ZIP+4 works in 29180
The four digits after the hyphen encode a delivery segment inside 29180. 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 29180 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 29180.
| ZIP | City | Distance |
|---|---|---|
| 29130 | Ridgeway, SC | 12 mi |
| 29065 | Jenkinsville, SC | 12.1 mi |
| 29014 | Blackstock, SC | 12.5 mi |
| 29016 | Blythewood, SC | 12.6 mi |
| 29015 | Blair, SC | 14.6 mi |
| 29122 | Peak, SC | 15.5 mi |
| 29063 | Irmo, SC | 16.7 mi |
| 29074 | Liberty Hill, SC | 17.2 mi |
| 29055 | Great Falls, SC | 17.6 mi |
| 29177 | White Rock, SC | 18.2 mi |
| 29203 | Columbia, SC | 18.4 mi |
| 29126 | Pomaria, SC | 18.5 mi |
Questions about 29180
What is the ZIP+4 code for 29180?
29180 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 29180, you need to look up a specific street address to get them.
What city is 29180?
29180 is assigned to Winnsboro, South Carolina, in Fairfield 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.