ZIP Code 63940 — Fisk, MO
63940 is a standard (street delivery) ZIP code serving Fisk, Missouri, in Butler 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 63940 at a glance
| ZIP code | 63940 |
|---|---|
| Primary city | Fisk |
| State | Missouri (MO) |
| County | Butler FIPS 29023 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,326 |
| Coordinates | 36.772180, -90.228920 |
How ZIP+4 works in 63940
The four digits after the hyphen encode a delivery segment inside 63940. 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 63940 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 63940.
| ZIP | City | Distance |
|---|---|---|
| 63962 | Rombauer, MO | 5.7 mi |
| 63932 | Broseley, MO | 5.9 mi |
| 63936 | Dudley, MO | 6 mi |
| 63901 | Poplar Bluff, MO | 12.2 mi |
| 63841 | Dexter, MO | 13.7 mi |
| 63966 | Wappapello, MO | 13.7 mi |
| 63960 | Puxico, MO | 14.2 mi |
| 63961 | Qulin, MO | 14.3 mi |
| 63822 | Bernie, MO | 14.8 mi |
| 63967 | Williamsville, MO | 18.3 mi |
| 63933 | Campbell, MO | 18.6 mi |
| 63825 | Bloomfield, MO | 19.1 mi |
Questions about 63940
What is the ZIP+4 code for 63940?
63940 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 63940, you need to look up a specific street address to get them.
What city is 63940?
63940 is assigned to Fisk, Missouri, in Butler 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.