ZIP Code 39421 — Bassfield, MS
39421 is a standard (street delivery) ZIP code serving Bassfield, Mississippi, in Jefferson Davis 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 39421 at a glance
| ZIP code | 39421 |
|---|---|
| Primary city | Bassfield |
| State | Mississippi (MS) |
| County | Jefferson Davis FIPS 28065 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 2,550 |
| Coordinates | 31.484110, -89.711790 |
How ZIP+4 works in 39421
The four digits after the hyphen encode a delivery segment inside 39421. 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 39421 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 39421.
| ZIP | City | Distance |
|---|---|---|
| 39427 | Carson, MS | 6.8 mi |
| 39482 | Sumrall, MS | 10.9 mi |
| 39474 | Prentiss, MS | 12.5 mi |
| 39656 | Oak Vale, MS | 13 mi |
| 39428 | Collins, MS | 14.1 mi |
| 39479 | Seminary, MS | 15.2 mi |
| 39429 | Columbia, MS | 16.4 mi |
| 39119 | Mount Olive, MS | 18.6 mi |
| 39663 | Silver Creek, MS | 20 mi |
| 39402 | Hattiesburg, MS | 20.4 mi |
| 39483 | Foxworth, MS | 21.3 mi |
| 39459 | Moselle, MS | 24.1 mi |
Questions about 39421
What is the ZIP+4 code for 39421?
39421 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 39421, you need to look up a specific street address to get them.
What city is 39421?
39421 is assigned to Bassfield, Mississippi, in Jefferson Davis 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.