ZIP Code 64671 — Polo, MO
64671 is a standard (street delivery) ZIP code serving Polo, Missouri, in Caldwell 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 64671 at a glance
| ZIP code | 64671 |
|---|---|
| Primary city | Polo |
| State | Missouri (MO) |
| County | Caldwell FIPS 29025 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,986 |
| Coordinates | 39.536550, -94.051800 |
How ZIP+4 works in 64671
The four digits after the hyphen encode a delivery segment inside 64671. 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 64671 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 64671.
| ZIP | City | Distance |
|---|---|---|
| 64650 | Kingston, MO | 6.9 mi |
| 64637 | Cowgill, MO | 7.7 mi |
| 64062 | Lawson, MO | 8.5 mi |
| 64084 | Rayville, MO | 10.3 mi |
| 64465 | Lathrop, MO | 13 mi |
| 64624 | Braymer, MO | 14.4 mi |
| 64085 | Richmond, MO | 14.7 mi |
| 64644 | Hamilton, MO | 14.8 mi |
| 64493 | Turney, MO | 14.9 mi |
| 64649 | Kidder, MO | 16.5 mi |
| 64429 | Cameron, MO | 16.8 mi |
| 64024 | Excelsior Springs, MO | 17.3 mi |
Questions about 64671
What is the ZIP+4 code for 64671?
64671 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 64671, you need to look up a specific street address to get them.
What city is 64671?
64671 is assigned to Polo, Missouri, in Caldwell 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.