ZIP Code 72821 — Altus, AR
72821 is a standard (street delivery) ZIP code serving Altus, Arkansas, in Franklin 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 72821 at a glance
| ZIP code | 72821 |
|---|---|
| Primary city | Altus |
| State | Arkansas (AR) |
| County | Franklin FIPS 05047 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,972 |
| Coordinates | 35.454500, -93.720240 |
How ZIP+4 works in 72821
The four digits after the hyphen encode a delivery segment inside 72821. 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 72821 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 72821.
| ZIP | City | Distance |
|---|---|---|
| 72832 | Coal Hill, AR | 3.4 mi |
| 72840 | Hartman, AR | 6 mi |
| 72949 | Ozark, AR | 8.7 mi |
| 72830 | Clarksville, AR | 12.6 mi |
| 72951 | Ratcliff, AR | 12.9 mi |
| 72865 | Subiaco, AR | 13.1 mi |
| 72863 | Scranton, AR | 13.3 mi |
| 72855 | Paris, AR | 14.2 mi |
| 72930 | Cecil, AR | 16.2 mi |
| 72928 | Branch, AR | 16.4 mi |
| 72852 | Oark, AR | 17.9 mi |
| 72933 | Charleston, AR | 18.5 mi |
Questions about 72821
What is the ZIP+4 code for 72821?
72821 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 72821, you need to look up a specific street address to get them.
What city is 72821?
72821 is assigned to Altus, Arkansas, in Franklin 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.