ZIP Code 65231 — Auxvasse, MO
65231 is a standard (street delivery) ZIP code serving Auxvasse, Missouri, in Callaway 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 65231 at a glance
| ZIP code | 65231 |
|---|---|
| Primary city | Auxvasse |
| State | Missouri (MO) |
| County | Callaway FIPS 29027 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 3,132 |
| Coordinates | 39.017730, -91.908030 |
How ZIP+4 works in 65231
The four digits after the hyphen encode a delivery segment inside 65231. 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 65231 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 65231.
| ZIP | City | Distance |
|---|---|---|
| 65262 | Kingdom City, MO | 5 mi |
| 65251 | Fulton, MO | 12.2 mi |
| 63388 | Williamsburg, MO | 12.3 mi |
| 65264 | Martinsburg, MO | 12.4 mi |
| 65232 | Benton City, MO | 12.7 mi |
| 65265 | Mexico, MO | 13 mi |
| 65285 | Thompson, MO | 14.4 mi |
| 65280 | Rush Hill, MO | 17.2 mi |
| 65077 | Steedman, MO | 18.1 mi |
| 65255 | Hallsville, MO | 18.3 mi |
| 65240 | Centralia, MO | 18.4 mi |
| 63384 | Wellsville, MO | 19.1 mi |
Questions about 65231
What is the ZIP+4 code for 65231?
65231 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 65231, you need to look up a specific street address to get them.
What city is 65231?
65231 is assigned to Auxvasse, Missouri, in Callaway 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.