ZIP Code 72921 — Alma, AR
72921 is a standard (street delivery) ZIP code serving Alma, Arkansas, in Crawford 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 72921 at a glance
| ZIP code | 72921 |
|---|---|
| Primary city | Alma |
| State | Arkansas (AR) |
| County | Crawford FIPS 05033 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 12,888 |
| Coordinates | 35.469530, -94.196860 |
How ZIP+4 works in 72921
The four digits after the hyphen encode a delivery segment inside 72921. 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 72921 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 72921.
| ZIP | City | Distance |
|---|---|---|
| 72935 | Dyer, AR | 4 mi |
| 72941 | Lavaca, AR | 8.5 mi |
| 72956 | Van Buren, AR | 8.5 mi |
| 72952 | Rudy, AR | 9 mi |
| 72947 | Mulberry, AR | 10.3 mi |
| 72930 | Cecil, AR | 11 mi |
| 72904 | Fort Smith, AR | 11.1 mi |
| 72903 | Fort Smith, AR | 12.2 mi |
| 72923 | Barling, AR | 12.2 mi |
| 72946 | Mountainburg, AR | 13.1 mi |
| 72932 | Cedarville, AR | 13.8 mi |
| 72933 | Charleston, AR | 13.9 mi |
Questions about 72921
What is the ZIP+4 code for 72921?
72921 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 72921, you need to look up a specific street address to get them.
What city is 72921?
72921 is assigned to Alma, Arkansas, in Crawford 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.