ZIP Code 71730 — El Dorado, AR
71730 is a standard (street delivery) ZIP code serving El Dorado, Arkansas, in Union 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 71730 at a glance
| ZIP code | 71730 |
|---|---|
| Primary city | El Dorado |
| State | Arkansas (AR) |
| County | Union FIPS 05139 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 29,760 |
| Coordinates | 33.203030, -92.634580 |
How ZIP+4 works in 71730
The four digits after the hyphen encode a delivery segment inside 71730. 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 71730 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 71730.
| ZIP | City | Distance |
|---|---|---|
| 71759 | Norphlet, AR | 7.9 mi |
| 71724 | Calion, AR | 10.1 mi |
| 71762 | Smackover, AR | 12 mi |
| 71749 | Junction City, AR | 14.1 mi |
| 71751 | Louann, AR | 16.3 mi |
| 71758 | Mount Holly, AR | 17.7 mi |
| 71765 | Strong, AR | 17.9 mi |
| 71277 | Spearsville, LA | 18.1 mi |
| 71256 | Lillie, LA | 18.2 mi |
| 71079 | Summerfield, LA | 20.6 mi |
| 71651 | Jersey, AR | 21.7 mi |
| 71744 | Hampton, AR | 22 mi |
Questions about 71730
What is the ZIP+4 code for 71730?
71730 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 71730, you need to look up a specific street address to get them.
What city is 71730?
71730 is assigned to El Dorado, Arkansas, in Union 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.