ZIP Code 28366 — Newton Grove, NC
28366 is a standard (street delivery) ZIP code serving Newton Grove, North Carolina, in Sampson 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 28366 at a glance
| ZIP code | 28366 |
|---|---|
| Primary city | Newton Grove |
| State | North Carolina (NC) |
| County | Sampson FIPS 37163 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 3,769 |
| Coordinates | 35.229740, -78.363170 |
How ZIP+4 works in 28366
The four digits after the hyphen encode a delivery segment inside 28366. 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 28366 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 28366.
| ZIP | City | Distance |
|---|---|---|
| 27524 | Four Oaks, NC | 11.4 mi |
| 28334 | Dunn, NC | 12 mi |
| 28341 | Faison, NC | 13 mi |
| 27504 | Benson, NC | 14.6 mi |
| 28385 | Salemburg, NC | 14.9 mi |
| 28325 | Calypso, NC | 15.5 mi |
| 28328 | Clinton, NC | 15.6 mi |
| 28344 | Godwin, NC | 15.8 mi |
| 28331 | Cumberland, NC | 16.3 mi |
| 28342 | Falcon, NC | 16.4 mi |
| 28365 | Mount Olive, NC | 17.6 mi |
| 27569 | Princeton, NC | 17.6 mi |
Questions about 28366
What is the ZIP+4 code for 28366?
28366 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 28366, you need to look up a specific street address to get them.
What city is 28366?
28366 is assigned to Newton Grove, North Carolina, in Sampson 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.