ZIP Code 71639 — Dumas, AR
71639 is a standard (street delivery) ZIP code serving Dumas, Arkansas, in Lincoln 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 71639 at a glance
| ZIP code | 71639 |
|---|---|
| Primary city | Dumas |
| State | Arkansas (AR) |
| County | Lincoln FIPS 05079 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 5,077 |
| Coordinates | 33.891430, -91.544140 |
How ZIP+4 works in 71639
The four digits after the hyphen encode a delivery segment inside 71639. 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 71639 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 71639.
| ZIP | City | Distance |
|---|---|---|
| 71662 | Pickens, AR | 5.2 mi |
| 71643 | Gould, AR | 9.1 mi |
| 71677 | Winchester, AR | 9.2 mi |
| 71670 | Tillar, AR | 12.7 mi |
| 72133 | Reydell, AR | 15 mi |
| 71667 | Star City, AR | 17.5 mi |
| 71644 | Grady, AR | 17.9 mi |
| 72055 | Gillett, AR | 18 mi |
| 71678 | Yorktown, AR | 18.1 mi |
| 71666 | Rohwer, AR | 20.1 mi |
| 72166 | Tichnor, AR | 20.6 mi |
| 71654 | Mcgehee, AR | 20.9 mi |
Questions about 71639
What is the ZIP+4 code for 71639?
71639 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 71639, you need to look up a specific street address to get them.
What city is 71639?
71639 is assigned to Dumas, Arkansas, in Lincoln 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.