ZIP Code 63438 — Durham, MO
63438 is a standard (street delivery) ZIP code serving Durham, Missouri, in Lewis 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 63438 at a glance
| ZIP code | 63438 |
|---|---|
| Primary city | Durham |
| State | Missouri (MO) |
| County | Lewis FIPS 29111 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 232 |
| Coordinates | 39.960840, -91.688280 |
How ZIP+4 works in 63438
The four digits after the hyphen encode a delivery segment inside 63438. 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 63438 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 63438.
| ZIP | City | Distance |
|---|---|---|
| 63454 | Maywood, MO | 3.3 mi |
| 63440 | Ewing, MO | 3.6 mi |
| 63448 | La Grange, MO | 8.2 mi |
| 63463 | Philadelphia, MO | 8.8 mi |
| 63471 | Taylor, MO | 9.9 mi |
| 63452 | Lewistown, MO | 10.5 mi |
| 63461 | Palmyra, MO | 13.3 mi |
| 63439 | Emden, MO | 14.1 mi |
| 63434 | Bethel, MO | 14.4 mi |
| 63457 | Monticello, MO | 14.6 mi |
| 63447 | La Belle, MO | 14.6 mi |
| 62301 | Quincy, IL | 16 mi |
Questions about 63438
What is the ZIP+4 code for 63438?
63438 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 63438, you need to look up a specific street address to get them.
What city is 63438?
63438 is assigned to Durham, Missouri, in Lewis 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.