ZIP Code 73551 — Hollister, OK
73551 is a standard (street delivery) ZIP code serving Hollister, Oklahoma, in Tillman 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 73551 at a glance
| ZIP code | 73551 |
|---|---|
| Primary city | Hollister |
| State | Oklahoma (OK) |
| County | Tillman FIPS 40141 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 11 |
| Coordinates | 34.307540, -98.874870 |
How ZIP+4 works in 73551
The four digits after the hyphen encode a delivery segment inside 73551. 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 73551 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 73551.
| ZIP | City | Distance |
|---|---|---|
| 73542 | Frederick, OK | 7.5 mi |
| 73553 | Loveland, OK | 9.9 mi |
| 73546 | Grandfield, OK | 10.1 mi |
| 73530 | Davidson, OK | 10.9 mi |
| 76364 | Harrold, TX | 13.7 mi |
| 73555 | Manitou, OK | 14.6 mi |
| 73528 | Chattanooga, OK | 14.7 mi |
| 76373 | Oklaunion, TX | 17.5 mi |
| 73570 | Tipton, OK | 19.2 mi |
| 76354 | Burkburnett, TX | 20.5 mi |
| 73540 | Faxon, OK | 21.3 mi |
| 73531 | Devol, OK | 21.5 mi |
Questions about 73551
What is the ZIP+4 code for 73551?
73551 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 73551, you need to look up a specific street address to get them.
What city is 73551?
73551 is assigned to Hollister, Oklahoma, in Tillman 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.