ZIP Code 73043 — Greenfield, OK
73043 is a standard (street delivery) ZIP code serving Greenfield, Oklahoma, in Blaine 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 73043 at a glance
| ZIP code | 73043 |
|---|---|
| Primary city | Greenfield |
| State | Oklahoma (OK) |
| County | Blaine FIPS 40011 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 142 |
| Coordinates | 35.736090, -98.393900 |
How ZIP+4 works in 73043
The four digits after the hyphen encode a delivery segment inside 73043. 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 73043 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 73043.
| ZIP | City | Distance |
|---|---|---|
| 73040 | Geary, OK | 6.4 mi |
| 73772 | Watonga, OK | 8.9 mi |
| 73764 | Omega, OK | 13.6 mi |
| 73646 | Fay, OK | 14.1 mi |
| 73744 | Hitchcock, OK | 15.7 mi |
| 73014 | Calumet, OK | 17.7 mi |
| 73048 | Hydro, OK | 19.2 mi |
| 73669 | Thomas, OK | 19.6 mi |
| 73047 | Hinton, OK | 19.8 mi |
| 73756 | Loyal, OK | 22.7 mi |
| 73770 | Southard, OK | 22.7 mi |
| 73658 | Oakwood, OK | 23.3 mi |
Questions about 73043
What is the ZIP+4 code for 73043?
73043 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 73043, you need to look up a specific street address to get them.
What city is 73043?
73043 is assigned to Greenfield, Oklahoma, in Blaine 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.