Utah ZIP codes

All 347 ZIPs in Utah, 84001 to 84791. Tap one on the map or in the list.

347

ZIP codes

3,390,495

people live in them

counties

PO Box & no-area ZIPs

Most people

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All 347 Utah ZIP codes

ZIP codes by county

Pick a county for its ZIP list and map. Counts include ZIPs that only partly reach into the county.

Questions people actually ask

How many ZIP codes are in Utah?

347 ZIP codes are in use in Utah. 298 cover a delivery area, and 49 are PO Box, single-building or organization ZIPs with no area of their own.

What do Utah ZIP codes start with?

Utah ZIP codes start with these three-digit prefixes: 840–847. Each prefix is a mail sorting area run from one processing center.

Which Utah ZIP code has the most people?

84043 in Lehi has the most residents of any Utah ZIP, about 88,390 people in the Census Bureau’s ACS 2020–2024 estimates.

Which Utah county has the most ZIP codes?

Salt Lake County touches 72 ZIP codes, the most of the 29 counties in Utah. 25 Utah ZIPs reach into more than one county.

Are these the official USPS ZIP code boundaries?

The map uses Census ZIP Code Tabulation Areas, the standard public stand-in for USPS delivery areas. They match for almost every home. For a mailing address, the USPS ZIP Code lookup has the final word.

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Updated 2026-11-10 · Where the data comes from