ZIP Code 73645 — Erick, OK
73645 is a standard (street delivery) ZIP code serving Erick, Oklahoma, in Beckham 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 73645 at a glance
| ZIP code | 73645 |
|---|---|
| Primary city | Erick |
| State | Oklahoma (OK) |
| County | Beckham FIPS 40009 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,086 |
| Coordinates | 35.169540, -99.870380 |
How ZIP+4 works in 73645
The four digits after the hyphen encode a delivery segment inside 73645. 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 73645 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 73645.
| ZIP | City | Distance |
|---|---|---|
| 73668 | Texola, OK | 7.2 mi |
| 73662 | Sayre, OK | 15.4 mi |
| 73673 | Willow, OK | 15.6 mi |
| 73571 | Vinson, OK | 16.6 mi |
| 73666 | Sweetwater, OK | 17.6 mi |
| 79079 | Shamrock, TX | 21.5 mi |
| 73627 | Carter, OK | 23.7 mi |
| 73554 | Mangum, OK | 26.5 mi |
| 79096 | Wheeler, TX | 26.8 mi |
| 79095 | Wellington, TX | 26.9 mi |
| 73547 | Granite, OK | 29.1 mi |
| 73644 | Elk City, OK | 29.7 mi |
Questions about 73645
What is the ZIP+4 code for 73645?
73645 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 73645, you need to look up a specific street address to get them.
What city is 73645?
73645 is assigned to Erick, Oklahoma, in Beckham 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.