ZIP Code 39633 — Crosby, MS
39633 is a standard (street delivery) ZIP code serving Crosby, Mississippi, in Wilkinson 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 39633 at a glance
| ZIP code | 39633 |
|---|---|
| Primary city | Crosby |
| State | Mississippi (MS) |
| County | Wilkinson FIPS 28157 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 759 |
| Coordinates | 31.287000, -91.166630 |
How ZIP+4 works in 39633
The four digits after the hyphen encode a delivery segment inside 39633. 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 39633 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 39633.
| ZIP | City | Distance |
|---|---|---|
| 39638 | Gloster, MS | 10.9 mi |
| 39661 | Roxie, MS | 14.7 mi |
| 39631 | Centreville, MS | 15.3 mi |
| 39669 | Woodville, MS | 16.5 mi |
| 39120 | Natchez, MS | 19 mi |
| 39653 | Meadville, MS | 21.3 mi |
| 39630 | Bude, MS | 22.4 mi |
| 70761 | Norwood, LA | 23 mi |
| 39645 | Liberty, MS | 24 mi |
| 71373 | Vidalia, LA | 25.2 mi |
| 70789 | Wilson, LA | 25.3 mi |
| 70787 | Weyanoke, LA | 27.7 mi |
Questions about 39633
What is the ZIP+4 code for 39633?
39633 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 39633, you need to look up a specific street address to get them.
What city is 39633?
39633 is assigned to Crosby, Mississippi, in Wilkinson 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.