ZIP Code 71731

71731 is one of Arkansas's ZIP codes, delivering to addresses in El Dorado, Union County.

City: El Dorado
County: Union County
State: Arkansas
Prefix: 717xx

Where this code sits

71731 is part of the 717xx range, the group of codes handled by one mail processing centre. El Dorado is served by 2 ZIP codes in total; the full list, with the county each falls in, is on the El Dorado page.

El Dorado Arkansas ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 71731 delivers to without sharing its boundary.

ZIP codes nearest 71731

The ZIP codes whose reference points sit closest to 71731.
ZIP code	Distance	Delivers to
ZIP code 71730	0.2 mi	El Dorado, AR
ZIP code 71759	7.5 mi	Norphlet, AR
ZIP code 71762	10 mi	Smackover, AR
ZIP code 71750	11 mi	Lawson, AR
ZIP code 71724	11 mi	Calion, AR
ZIP code 71749	14 mi	Junction City, AR
ZIP code 71751	16 mi	Louann, AR
ZIP code 71758	18 mi	Mount Holly, AR

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 71731, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 71731. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.