ZIP Code 64638 — Dawn, MO
64638 is a standard (street delivery) ZIP code serving Dawn, Missouri, in Livingston 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 64638 at a glance
| ZIP code | 64638 |
|---|---|
| Primary city | Dawn |
| State | Missouri (MO) |
| County | Livingston FIPS 29117 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 470 |
| Coordinates | 39.618940, -93.614980 |
How ZIP+4 works in 64638
The four digits after the hyphen encode a delivery segment inside 64638. 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 64638 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 64638.
| ZIP | City | Distance |
|---|---|---|
| 64656 | Ludlow, MO | 5.8 mi |
| 64682 | Tina, MO | 8 mi |
| 64664 | Mooresville, MO | 9.1 mi |
| 64686 | Utica, MO | 9.1 mi |
| 64622 | Bogard, MO | 9.3 mi |
| 64624 | Braymer, MO | 9.6 mi |
| 64601 | Chillicothe, MO | 13 mi |
| 64643 | Hale, MO | 13.1 mi |
| 64625 | Breckenridge, MO | 13.3 mi |
| 64637 | Cowgill, MO | 16.3 mi |
| 64654 | Lock Springs, MO | 18 mi |
| 64623 | Bosworth, MO | 18.2 mi |
Questions about 64638
What is the ZIP+4 code for 64638?
64638 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 64638, you need to look up a specific street address to get them.
What city is 64638?
64638 is assigned to Dawn, Missouri, in Livingston 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.