ZIP Code 28423 — Bolton, NC
28423 is a standard (street delivery) ZIP code serving Bolton, North Carolina, in Columbus 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 28423 at a glance
| ZIP code | 28423 |
|---|---|
| Primary city | Bolton |
| State | North Carolina (NC) |
| County | Columbus FIPS 37047 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 2,388 |
| Coordinates | 34.277820, -78.404830 |
How ZIP+4 works in 28423
The four digits after the hyphen encode a delivery segment inside 28423. 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 28423 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 28423.
| ZIP | City | Distance |
|---|---|---|
| 28450 | Lake Waccamaw, NC | 6.4 mi |
| 28436 | Delco, NC | 7.4 mi |
| 28456 | Riegelwood, NC | 9.4 mi |
| 28442 | Hallsboro, NC | 11.4 mi |
| 28434 | Council, NC | 13.9 mi |
| 28420 | Ash, NC | 14.1 mi |
| 28448 | Kelly, NC | 15.5 mi |
| 28472 | Whiteville, NC | 16 mi |
| 28451 | Leland, NC | 16.8 mi |
| 28424 | Brunswick, NC | 16.8 mi |
| 28455 | Nakina, NC | 17.2 mi |
| 28435 | Currie, NC | 18.9 mi |
Questions about 28423
What is the ZIP+4 code for 28423?
28423 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 28423, you need to look up a specific street address to get them.
What city is 28423?
28423 is assigned to Bolton, North Carolina, in Columbus 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.