Utah ZIP Codes

ZIP codes: 347
Cities & towns: 251
Counties: 29
Area codes: 3

How Utah ZIP codes are numbered

840xx–847xx

The first three digits identify the sectional center facility that processes mail for a region, so a Utah ZIP code can be placed geographically from its prefix alone. Each row names the city holding the most codes in that prefix.

Utah three-digit ZIP prefixes, the codes in each, and the city that holds the most of them.
Prefix	ZIP codes	Main area
840xx	94	Sandy
841xx	55	Salt Lake City
842xx	2	Ogden
843xx	40	Logan
844xx	11	Ogden
845xx	27	Aneth
846xx	47	Provo
847xx	71	Saint George

Where Utah's communities sit

Each point is a Utah community with a published ZIP code list, plotted from its record coordinates. The outline is the convex envelope of those points — a footprint, not a boundary.

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

Utah cities by ZIP code count

largest 25

Area codes serving Utah

Scope every ZIP code recorded in Utah. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. The map outline is a convex envelope of published places, not a state boundary.