ZIP Code 65440 — Boss, MO
65440 is a standard (street delivery) ZIP code serving Boss, Missouri, in Dent 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 65440 at a glance
| ZIP code | 65440 |
|---|---|
| Primary city | Boss |
| State | Missouri (MO) |
| County | Dent FIPS 29065 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 206 |
| Coordinates | 37.603880, -91.185390 |
How ZIP+4 works in 65440
The four digits after the hyphen encode a delivery segment inside 65440. 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 65440 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 65440.
| ZIP | City | Distance |
|---|---|---|
| 65439 | Bixby, MO | 6.1 mi |
| 63625 | Black, MO | 11.2 mi |
| 65566 | Viburnum, MO | 11.4 mi |
| 65456 | Davisville, MO | 12.2 mi |
| 63629 | Bunker, MO | 14.5 mi |
| 65446 | Cherryville, MO | 14.9 mi |
| 63633 | Centerville, MO | 15.9 mi |
| 63623 | Belleview, MO | 16.7 mi |
| 65560 | Salem, MO | 17.2 mi |
| 63622 | Belgrade, MO | 19.9 mi |
| 63654 | Lesterville, MO | 20.8 mi |
| 65565 | Steelville, MO | 21 mi |
Questions about 65440
What is the ZIP+4 code for 65440?
65440 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 65440, you need to look up a specific street address to get them.
What city is 65440?
65440 is assigned to Boss, Missouri, in Dent 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.