ZIP Code 39664 — Smithdale, MS
39664 is a standard (street delivery) ZIP code serving Smithdale, Mississippi, in Amite 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 39664 at a glance
| ZIP code | 39664 |
|---|---|
| Primary city | Smithdale |
| State | Mississippi (MS) |
| County | Amite FIPS 28005 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 2,603 |
| Coordinates | 31.328940, -90.682520 |
How ZIP+4 works in 39664
The four digits after the hyphen encode a delivery segment inside 39664. 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 39664 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 39664.
| ZIP | City | Distance |
|---|---|---|
| 39666 | Summit, MS | 11.8 mi |
| 39647 | Mccall Creek, MS | 13 mi |
| 39630 | Bude, MS | 13.2 mi |
| 39645 | Liberty, MS | 14.1 mi |
| 39653 | Meadville, MS | 14.2 mi |
| 39629 | Bogue Chitto, MS | 15.2 mi |
| 39635 | Fernwood, MS | 17 mi |
| 39652 | Magnolia, MS | 19.7 mi |
| 39638 | Gloster, MS | 19.9 mi |
| 39648 | Mccomb, MS | 20 mi |
| 39601 | Brookhaven, MS | 20.3 mi |
| 39662 | Ruth, MS | 23 mi |
Questions about 39664
What is the ZIP+4 code for 39664?
39664 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 39664, you need to look up a specific street address to get them.
What city is 39664?
39664 is assigned to Smithdale, Mississippi, in Amite 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.