ZIP Code 72540 — Guion, AR
72540 is a standard (street delivery) ZIP code serving Guion, Arkansas, in Izard 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 72540 at a glance
| ZIP code | 72540 |
|---|---|
| Primary city | Guion |
| State | Arkansas (AR) |
| County | Izard FIPS 05065 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 99 |
| Coordinates | 35.933550, -91.909600 |
How ZIP+4 works in 72540
The four digits after the hyphen encode a delivery segment inside 72540. 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 72540 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 72540.
| ZIP | City | Distance |
|---|---|---|
| 72561 | Mount Pleasant, AR | 5.5 mi |
| 72556 | Melbourne, AR | 6.9 mi |
| 72567 | Pleasant Grove, AR | 8 mi |
| 72526 | Cushman, AR | 8.9 mi |
| 72555 | Marcella, AR | 11.3 mi |
| 72560 | Mountain View, AR | 11.5 mi |
| 72573 | Sage, AR | 11.6 mi |
| 72577 | Sidney, AR | 12.8 mi |
| 72517 | Brockwell, AR | 14.9 mi |
| 72584 | Violet Hill, AR | 15 mi |
| 72536 | Franklin, AR | 16.9 mi |
| 72550 | Locust Grove, AR | 17.1 mi |
Questions about 72540
What is the ZIP+4 code for 72540?
72540 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 72540, you need to look up a specific street address to get them.
What city is 72540?
72540 is assigned to Guion, Arkansas, in Izard 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.