ZIP Code 73628 — Cheyenne, OK
73628 is a standard (street delivery) ZIP code serving Cheyenne, Oklahoma, in Roger Mills 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 73628 at a glance
| ZIP code | 73628 |
|---|---|
| Primary city | Cheyenne |
| State | Oklahoma (OK) |
| County | Roger Mills FIPS 40129 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,677 |
| Coordinates | 35.626680, -99.687830 |
How ZIP+4 works in 73628
The four digits after the hyphen encode a delivery segment inside 73628. 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 73628 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 73628.
| ZIP | City | Distance |
|---|---|---|
| 73660 | Reydon, OK | 12.8 mi |
| 73650 | Hammon, OK | 15.2 mi |
| 73638 | Crawford, OK | 17.4 mi |
| 73642 | Durham, OK | 18.2 mi |
| 73666 | Sweetwater, OK | 19.4 mi |
| 73644 | Elk City, OK | 21.2 mi |
| 73662 | Sayre, OK | 21.5 mi |
| 79003 | Allison, TX | 22.5 mi |
| 73654 | Leedey, OK | 23.8 mi |
| 73626 | Canute, OK | 26.3 mi |
| 73625 | Butler, OK | 27.9 mi |
| 79011 | Briscoe, TX | 29.2 mi |
Questions about 73628
What is the ZIP+4 code for 73628?
73628 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 73628, you need to look up a specific street address to get them.
What city is 73628?
73628 is assigned to Cheyenne, Oklahoma, in Roger Mills 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.