ZIP Code 64430 — Clarksdale, MO
64430 is a standard (street delivery) ZIP code serving Clarksdale, Missouri, in DeKalb 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 64430 at a glance
| ZIP code | 64430 |
|---|---|
| Primary city | Clarksdale |
| State | Missouri (MO) |
| County | DeKalb FIPS 29063 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 823 |
| Coordinates | 39.837710, -94.569240 |
How ZIP+4 works in 64430
The four digits after the hyphen encode a delivery segment inside 64430. 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 64430 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 64430.
| ZIP | City | Distance |
|---|---|---|
| 64422 | Amity, MO | 5.9 mi |
| 64436 | Cosby, MO | 6.5 mi |
| 64490 | Stewartsville, MO | 7.5 mi |
| 64443 | Easton, MO | 7.6 mi |
| 64459 | Helena, MO | 7.8 mi |
| 64494 | Union Star, MO | 10.9 mi |
| 64474 | Osborn, MO | 11.4 mi |
| 64507 | Saint Joseph, MO | 12.3 mi |
| 64506 | Saint Joseph, MO | 12.8 mi |
| 64469 | Maysville, MO | 12.9 mi |
| 64505 | Saint Joseph, MO | 14 mi |
| 64485 | Savannah, MO | 15.4 mi |
Questions about 64430
What is the ZIP+4 code for 64430?
64430 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 64430, you need to look up a specific street address to get them.
What city is 64430?
64430 is assigned to Clarksdale, Missouri, in DeKalb 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.