ZIP Code 73647 — Foss, OK
73647 is a standard (street delivery) ZIP code serving Foss, Oklahoma, in Washita 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 73647 at a glance
| ZIP code | 73647 |
|---|---|
| Primary city | Foss |
| State | Oklahoma (OK) |
| County | Washita FIPS 40149 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 699 |
| Coordinates | 35.447860, -99.161240 |
How ZIP+4 works in 73647
The four digits after the hyphen encode a delivery segment inside 73647. 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 73647 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 73647.
| ZIP | City | Distance |
|---|---|---|
| 73624 | Burns Flat, OK | 6.1 mi |
| 73626 | Canute, OK | 6.7 mi |
| 73622 | Bessie, OK | 9.9 mi |
| 73601 | Clinton, OK | 12.5 mi |
| 73641 | Dill City, OK | 12.6 mi |
| 73620 | Arapaho, OK | 13.8 mi |
| 73644 | Elk City, OK | 15.3 mi |
| 73625 | Butler, OK | 17.3 mi |
| 73632 | Cordell, OK | 18.8 mi |
| 73664 | Sentinel, OK | 19.3 mi |
| 73650 | Hammon, OK | 19.6 mi |
| 73024 | Corn, OK | 20.3 mi |
Questions about 73647
What is the ZIP+4 code for 73647?
73647 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 73647, you need to look up a specific street address to get them.
What city is 73647?
73647 is assigned to Foss, Oklahoma, in Washita 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.