ZIP Code 64863 — South West City, MO
64863 is a standard (street delivery) ZIP code serving South West City, Missouri, in McDonald 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 64863 at a glance
| ZIP code | 64863 |
|---|---|
| Primary city | South West City |
| State | Missouri (MO) |
| County | McDonald FIPS 29119 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,586 |
| Coordinates | 36.555110, -94.584440 |
How ZIP+4 works in 64863
The four digits after the hyphen encode a delivery segment inside 64863. 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 64863 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 64863.
| ZIP | City | Distance |
|---|---|---|
| 72768 | Sulphur Springs, AR | 7.3 mi |
| 64854 | Noel, MO | 8 mi |
| 64847 | Lanagan, MO | 8.5 mi |
| 74344 | Grove, OK | 9 mi |
| 64868 | Tiff City, MO | 9.3 mi |
| 64831 | Anderson, MO | 10 mi |
| 72736 | Gravette, AR | 11.8 mi |
| 74346 | Jay, OK | 12.4 mi |
| 72747 | Maysville, AR | 12.8 mi |
| 64843 | Goodman, MO | 14.3 mi |
| 74370 | Wyandotte, OK | 15.4 mi |
| 72722 | Decatur, AR | 16.2 mi |
Questions about 64863
What is the ZIP+4 code for 64863?
64863 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 64863, you need to look up a specific street address to get them.
What city is 64863?
64863 is assigned to South West City, Missouri, in McDonald 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.