ZIP Code 71840

71840 is one of Arkansas's ZIP codes, delivering to addresses in Genoa, Miller County.

City: Genoa
County: Miller County
State: Arkansas
Prefix: 718xx

Where this code sits

71840 is part of the 718xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Genoa.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 71840 delivers to without sharing its boundary.

ZIP codes nearest 71840

The ZIP codes whose reference points sit closest to 71840.
ZIP code	Distance	Delivers to
ZIP code 71854	3.8 mi	Texarkana, AR
ZIP code 71837	5.6 mi	Fouke, AR
ZIP code 75504	8.5 mi	Texarkana, TX
ZIP code 75507	8.5 mi	Texarkana, TX
ZIP code 75599	8.5 mi	Texarkana, TX
ZIP code 75505	11 mi	Texarkana, TX
ZIP code 71839	11 mi	Garland City, AR
ZIP code 75503	11 mi	Texarkana, TX

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 71840, plotted from its record coordinates.

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

Scope ZIP code 71840. 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.