ZIP Code 28398 — Warsaw, NC
28398 is a standard (street delivery) ZIP code serving Warsaw, North Carolina, in Duplin 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 28398 at a glance
| ZIP code | 28398 |
|---|---|
| Primary city | Warsaw |
| State | North Carolina (NC) |
| County | Duplin FIPS 37061 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 6,417 |
| Coordinates | 34.993070, -78.071430 |
How ZIP+4 works in 28398
The four digits after the hyphen encode a delivery segment inside 28398. 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 28398 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 28398.
| ZIP | City | Distance |
|---|---|---|
| 28393 | Turkey, NC | 6.7 mi |
| 28453 | Magnolia, NC | 7.6 mi |
| 28349 | Kenansville, NC | 8.6 mi |
| 28341 | Faison, NC | 10.5 mi |
| 28325 | Calypso, NC | 11.2 mi |
| 28458 | Rose Hill, NC | 12 mi |
| 28365 | Mount Olive, NC | 12.8 mi |
| 28328 | Clinton, NC | 14.9 mi |
| 28464 | Teachey, NC | 15.2 mi |
| 28508 | Albertson, NC | 15.5 mi |
| 28578 | Seven Springs, NC | 18.5 mi |
| 28518 | Beulaville, NC | 19 mi |
Questions about 28398
What is the ZIP+4 code for 28398?
28398 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 28398, you need to look up a specific street address to get them.
What city is 28398?
28398 is assigned to Warsaw, North Carolina, in Duplin 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.