ZIP Code 71638 — Dermott, AR
71638 is a standard (street delivery) ZIP code serving Dermott, Arkansas, in Drew 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 71638 at a glance
| ZIP code | 71638 |
|---|---|
| Primary city | Dermott |
| State | Arkansas (AR) |
| County | Drew FIPS 05043 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 2,874 |
| Coordinates | 33.520080, -91.479270 |
How ZIP+4 works in 71638
The four digits after the hyphen encode a delivery segment inside 71638. 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 71638 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 71638.
| ZIP | City | Distance |
|---|---|---|
| 71654 | Mcgehee, AR | 9.5 mi |
| 71658 | Montrose, AR | 14.9 mi |
| 71653 | Lake Village, AR | 15.6 mi |
| 71630 | Arkansas City, AR | 15.9 mi |
| 71670 | Tillar, AR | 16 mi |
| 71677 | Winchester, AR | 17 mi |
| 71655 | Monticello, AR | 17.2 mi |
| 71666 | Rohwer, AR | 20.1 mi |
| 71663 | Portland, AR | 20.4 mi |
| 71662 | Pickens, AR | 21 mi |
| 38772 | Scott, MS | 22.7 mi |
| 71642 | Fountain Hill, AR | 24.7 mi |
Questions about 71638
What is the ZIP+4 code for 71638?
71638 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 71638, you need to look up a specific street address to get them.
What city is 71638?
71638 is assigned to Dermott, Arkansas, in Drew 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.