ZIP Code 84340

84340 is one of Utah's ZIP codes, delivering to addresses in Willard, Box Elder County.

City: Willard
County: Box Elder County
State: Utah
Prefix: 843xx

Where this code sits

84340 is part of the 843xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Willard.

Willard Utah ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 84340 delivers to without sharing its boundary.

435 Area code 435

ZIP codes nearest 84340

The ZIP codes whose reference points sit closest to 84340.
ZIP code	Distance	Delivers to
ZIP code 84414	6.9 mi	Ogden, UT
ZIP code 84302	7.6 mi	Brigham City, UT
ZIP code 84324	8.3 mi	Mantua, UT
ZIP code 84404	9.7 mi	Ogden, UT
ZIP code 84310	10 mi	Eden, UT
ZIP code 84244	11 mi	Ogden, UT
ZIP code 84402	11 mi	Ogden, UT
ZIP code 84409	11 mi	Ogden, UT

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 84340, plotted from its record coordinates.

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

Scope ZIP code 84340. 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.