ZIP Code 84321

84321 is one of Utah's ZIP codes, delivering to addresses in Logan, Cache County.

City: Logan
County: Cache County
State: Utah
Prefix: 843xx

Where this code sits

84321 is part of the 843xx range, the group of codes handled by one mail processing centre. Logan is served by 4 ZIP codes in total; the full list, with the county each falls in, is on the Logan page.

Logan Utah ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 84321 delivers to without sharing its boundary.

435 Area code 435

ZIP codes nearest 84321

The ZIP codes whose reference points sit closest to 84321.
ZIP code	Distance	Delivers to
ZIP code 84323	1.0 mi	Logan, UT
ZIP code 84341	2.2 mi	Logan, UT
ZIP code 84332	3.3 mi	Providence, UT
ZIP code 84318	3.7 mi	Hyde Park, UT
ZIP code 84326	4.9 mi	Millville, UT
ZIP code 84335	6.6 mi	Smithfield, UT
ZIP code 84319	8.1 mi	Hyrum, UT
ZIP code 84322	8.2 mi	Logan, 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 84321, plotted from its record coordinates.

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

Scope ZIP code 84321. 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.