ZIP Code 39645 — Liberty, MS
39645 is a standard (street delivery) ZIP code serving Liberty, 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 39645 at a glance
| ZIP code | 39645 |
|---|---|
| Primary city | Liberty |
| State | Mississippi (MS) |
| County | Amite FIPS 28005 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 4,050 |
| Coordinates | 31.148500, -90.793990 |
How ZIP+4 works in 39645
The four digits after the hyphen encode a delivery segment inside 39645. 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 39645 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 39645.
| ZIP | City | Distance |
|---|---|---|
| 39638 | Gloster, MS | 13.1 mi |
| 39664 | Smithdale, MS | 14.1 mi |
| 70761 | Norwood, LA | 18.5 mi |
| 39631 | Centreville, MS | 18.6 mi |
| 39657 | Osyka, MS | 19.1 mi |
| 39652 | Magnolia, MS | 19.5 mi |
| 70441 | Greensburg, LA | 20.1 mi |
| 39666 | Summit, MS | 20.4 mi |
| 39635 | Fernwood, MS | 20.5 mi |
| 39630 | Bude, MS | 21.7 mi |
| 39653 | Meadville, MS | 22 mi |
| 70789 | Wilson, LA | 22.3 mi |
Questions about 39645
What is the ZIP+4 code for 39645?
39645 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 39645, you need to look up a specific street address to get them.
What city is 39645?
39645 is assigned to Liberty, 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.