ZIP Code 63369 — Old Monroe, MO
63369 is a standard (street delivery) ZIP code serving Old Monroe, Missouri, in Lincoln 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 63369 at a glance
| ZIP code | 63369 |
|---|---|
| Primary city | Old Monroe |
| State | Missouri (MO) |
| County | Lincoln FIPS 29113 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 2,822 |
| Coordinates | 38.937580, -90.777660 |
How ZIP+4 works in 63369
The four digits after the hyphen encode a delivery segment inside 63369. 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 63369 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 63369.
| ZIP | City | Distance |
|---|---|---|
| 63389 | Winfield, MO | 4.3 mi |
| 63362 | Moscow Mills, MO | 5.6 mi |
| 63366 | O'fallon, MO | 6.2 mi |
| 63347 | Foley, MO | 9.2 mi |
| 62036 | Golden Eagle, IL | 10.1 mi |
| 63385 | Wentzville, MO | 10.6 mi |
| 62006 | Batchtown, IL | 10.6 mi |
| 63367 | Lake Saint Louis, MO | 11 mi |
| 62013 | Brussels, IL | 11.6 mi |
| 63379 | Troy, MO | 12.2 mi |
| 63376 | Saint Peters, MO | 12.8 mi |
| 63368 | O'fallon, MO | 13.1 mi |
Questions about 63369
What is the ZIP+4 code for 63369?
63369 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 63369, you need to look up a specific street address to get them.
What city is 63369?
63369 is assigned to Old Monroe, Missouri, in Lincoln 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.