ZIP Code 84040

84040 is one of Utah's ZIP codes, delivering to addresses in Layton, Davis County.

City: Layton
County: Davis County
State: Utah
Prefix: 840xx

Where this code sits

84040 is part of the 840xx range, the group of codes handled by one mail processing centre. Layton is served by 2 ZIP codes in total; the full list, with the county each falls in, is on the Layton page.

Layton Utah ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 84040 delivers to without sharing its boundary.

ZIP codes nearest 84040

The ZIP codes whose reference points sit closest to 84040.
ZIP code	Distance	Delivers to
ZIP code 84041	2.3 mi	Layton, UT
ZIP code 84037	3.3 mi	Kaysville, UT
ZIP code 84056	4.1 mi	Hill Afb, UT
ZIP code 84016	5.4 mi	Clearfield, UT
ZIP code 84075	6.1 mi	Syracuse, UT
ZIP code 84405	6.8 mi	Ogden, UT
ZIP code 84025	6.8 mi	Farmington, UT
ZIP code 84015	7.0 mi	Clearfield, 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 84040, plotted from its record coordinates.

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

Scope ZIP code 84040. 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.