ZIP Code 39556 — Kiln, MS
39556 is a standard (street delivery) ZIP code serving Kiln, Mississippi, in Hancock 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 39556 at a glance
| ZIP code | 39556 |
|---|---|
| Primary city | Kiln |
| State | Mississippi (MS) |
| County | Hancock FIPS 28045 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 6,041 |
| Coordinates | 30.444570, -89.427470 |
How ZIP+4 works in 39556
The four digits after the hyphen encode a delivery segment inside 39556. 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 39556 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 39556.
| ZIP | City | Distance |
|---|---|---|
| 39525 | Diamondhead, MS | 5.5 mi |
| 39571 | Pass Christian, MS | 8.9 mi |
| 39576 | Waveland, MS | 11.2 mi |
| 39529 | Stennis Space Center, MS | 11.4 mi |
| 39520 | Bay Saint Louis, MS | 12.4 mi |
| 39466 | Picayune, MS | 13.7 mi |
| 39560 | Long Beach, MS | 15.9 mi |
| 39503 | Gulfport, MS | 16.8 mi |
| 39572 | Pearlington, MS | 16.9 mi |
| 39501 | Gulfport, MS | 19.7 mi |
| 39426 | Carriere, MS | 19.9 mi |
| 70452 | Pearl River, LA | 19.9 mi |
Questions about 39556
What is the ZIP+4 code for 39556?
39556 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 39556, you need to look up a specific street address to get them.
What city is 39556?
39556 is assigned to Kiln, Mississippi, in Hancock 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.