ZIP Code 38740 — Duncan, MS
38740 is a standard (street delivery) ZIP code serving Duncan, Mississippi, in Bolivar 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 38740 at a glance
| ZIP code | 38740 |
|---|---|
| Primary city | Duncan |
| State | Mississippi (MS) |
| County | Bolivar FIPS 28011 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 496 |
| Coordinates | 34.048250, -90.790390 |
How ZIP+4 works in 38740
The four digits after the hyphen encode a delivery segment inside 38740. 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 38740 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 38740.
| ZIP | City | Distance |
|---|---|---|
| 38720 | Alligator, MS | 4.9 mi |
| 38767 | Rena Lara, MS | 5.6 mi |
| 38774 | Shelby, MS | 5.8 mi |
| 38781 | Winstonville, MS | 9.8 mi |
| 38746 | Gunnison, MS | 10.7 mi |
| 38762 | Mound Bayou, MS | 11.6 mi |
| 72328 | Crumrod, AR | 12.4 mi |
| 38614 | Clarksdale, MS | 13 mi |
| 72379 | Snow Lake, AR | 15 mi |
| 38759 | Merigold, MS | 15.7 mi |
| 38738 | Parchman, MS | 16.6 mi |
| 72367 | Mellwood, AR | 16.6 mi |
Questions about 38740
What is the ZIP+4 code for 38740?
38740 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 38740, you need to look up a specific street address to get them.
What city is 38740?
38740 is assigned to Duncan, Mississippi, in Bolivar 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.