ZIP Code 28433 — Clarkton, NC
28433 is a standard (street delivery) ZIP code serving Clarkton, North Carolina, in Bladen 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 28433 at a glance
| ZIP code | 28433 |
|---|---|
| Primary city | Clarkton |
| State | North Carolina (NC) |
| County | Bladen FIPS 37017 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 4,313 |
| Coordinates | 34.489790, -78.625980 |
How ZIP+4 works in 28433
The four digits after the hyphen encode a delivery segment inside 28433. 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 28433 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 28433.
| ZIP | City | Distance |
|---|---|---|
| 28434 | Council, NC | 8.7 mi |
| 28320 | Bladenboro, NC | 9.5 mi |
| 28337 | Elizabethtown, NC | 12.1 mi |
| 28442 | Hallsboro, NC | 12.5 mi |
| 28332 | Dublin, NC | 12.6 mi |
| 28472 | Whiteville, NC | 13.7 mi |
| 28424 | Brunswick, NC | 14.4 mi |
| 28450 | Lake Waccamaw, NC | 14.7 mi |
| 28431 | Chadbourn, NC | 17.2 mi |
| 28448 | Kelly, NC | 17.4 mi |
| 28438 | Evergreen, NC | 17.6 mi |
| 28423 | Bolton, NC | 19.3 mi |
Questions about 28433
What is the ZIP+4 code for 28433?
28433 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 28433, you need to look up a specific street address to get them.
What city is 28433?
28433 is assigned to Clarkton, North Carolina, in Bladen 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.