ZIP Code 72666 — Parthenon, AR
72666 is a standard (street delivery) ZIP code serving Parthenon, Arkansas, in Newton 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 72666 at a glance
| ZIP code | 72666 |
|---|---|
| Primary city | Parthenon |
| State | Arkansas (AR) |
| County | Newton FIPS 05101 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 354 |
| Coordinates | 35.948760, -93.287060 |
How ZIP+4 works in 72666
The four digits after the hyphen encode a delivery segment inside 72666. 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 72666 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 72666.
| ZIP | City | Distance |
|---|---|---|
| 72641 | Jasper, AR | 4.6 mi |
| 72670 | Ponca, AR | 5.7 mi |
| 72628 | Deer, AR | 8.4 mi |
| 72683 | Vendor, AR | 9.6 mi |
| 72624 | Compton, AR | 10 mi |
| 72648 | Marble Falls, AR | 11.8 mi |
| 72742 | Kingston, AR | 11.8 mi |
| 72640 | Hasty, AR | 13.8 mi |
| 72655 | Mount Judea, AR | 14.6 mi |
| 72752 | Pettigrew, AR | 17.8 mi |
| 72856 | Pelsor, AR | 17.9 mi |
| 72685 | Western Grove, AR | 18.6 mi |
Questions about 72666
What is the ZIP+4 code for 72666?
72666 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 72666, you need to look up a specific street address to get them.
What city is 72666?
72666 is assigned to Parthenon, Arkansas, in Newton 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.