ZIP Code 64865 — Seneca, MO
64865 is a standard (street delivery) ZIP code serving Seneca, Missouri, in Newton 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 64865 at a glance
| ZIP code | 64865 |
|---|---|
| Primary city | Seneca |
| State | Missouri (MO) |
| County | Newton FIPS 29145 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 5,692 |
| Coordinates | 36.842530, -94.577970 |
How ZIP+4 works in 64865
The four digits after the hyphen encode a delivery segment inside 64865. 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 64865 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 64865.
| ZIP | City | Distance |
|---|---|---|
| 64858 | Racine, MO | 4.8 mi |
| 74370 | Wyandotte, OK | 7.8 mi |
| 64850 | Neosho, MO | 10 mi |
| 64843 | Goodman, MO | 10.2 mi |
| 74363 | Quapaw, OK | 10.6 mi |
| 64868 | Tiff City, MO | 10.9 mi |
| 64804 | Joplin, MO | 12.8 mi |
| 64831 | Anderson, MO | 14.6 mi |
| 74343 | Fairland, OK | 15.3 mi |
| 74354 | Miami, OK | 17 mi |
| 74360 | Picher, OK | 17.1 mi |
| 74358 | North Miami, OK | 17.5 mi |
Questions about 64865
What is the ZIP+4 code for 64865?
64865 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 64865, you need to look up a specific street address to get them.
What city is 64865?
64865 is assigned to Seneca, Missouri, in Newton 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.