ZIP Code 64490 — Stewartsville, MO
64490 is a standard (street delivery) ZIP code serving Stewartsville, Missouri, in Clinton 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 64490 at a glance
| ZIP code | 64490 |
|---|---|
| Primary city | Stewartsville |
| State | Missouri (MO) |
| County | Clinton FIPS 29049 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,939 |
| Coordinates | 39.738370, -94.509840 |
How ZIP+4 works in 64490
The four digits after the hyphen encode a delivery segment inside 64490. 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 64490 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 64490.
| ZIP | City | Distance |
|---|---|---|
| 64474 | Osborn, MO | 7 mi |
| 64430 | Clarksdale, MO | 7.5 mi |
| 64443 | Easton, MO | 7.6 mi |
| 64454 | Gower, MO | 10.1 mi |
| 64422 | Amity, MO | 11.2 mi |
| 64477 | Plattsburg, MO | 11.4 mi |
| 64436 | Cosby, MO | 12.4 mi |
| 64401 | Agency, MO | 13 mi |
| 64507 | Saint Joseph, MO | 13.1 mi |
| 64493 | Turney, MO | 13.2 mi |
| 64429 | Cameron, MO | 14.9 mi |
| 64459 | Helena, MO | 15.3 mi |
Questions about 64490
What is the ZIP+4 code for 64490?
64490 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 64490, you need to look up a specific street address to get them.
What city is 64490?
64490 is assigned to Stewartsville, Missouri, in Clinton 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.