ZIP Code 63638 — Ellington, MO
63638 is a standard (street delivery) ZIP code serving Ellington, Missouri, in Reynolds 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 63638 at a glance
| ZIP code | 63638 |
|---|---|
| Primary city | Ellington |
| State | Missouri (MO) |
| County | Reynolds FIPS 29179 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 2,489 |
| Coordinates | 37.217270, -91.011350 |
How ZIP+4 works in 63638
The four digits after the hyphen encode a delivery segment inside 63638. 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 63638 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 63638.
| ZIP | City | Distance |
|---|---|---|
| 63665 | Redford, MO | 10.6 mi |
| 63633 | Centerville, MO | 14 mi |
| 63965 | Van Buren, MO | 16.8 mi |
| 63629 | Bunker, MO | 17.7 mi |
| 63675 | Vulcan, MO | 18.2 mi |
| 63957 | Piedmont, MO | 18.5 mi |
| 63654 | Lesterville, MO | 18.9 mi |
| 65466 | Eminence, MO | 20.6 mi |
| 63620 | Annapolis, MO | 23.5 mi |
| 63937 | Ellsinore, MO | 23.7 mi |
| 65588 | Winona, MO | 23.7 mi |
| 63625 | Black, MO | 23.9 mi |
Questions about 63638
What is the ZIP+4 code for 63638?
63638 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 63638, you need to look up a specific street address to get them.
What city is 63638?
63638 is assigned to Ellington, Missouri, in Reynolds 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.