Eureka, UT ZIP Code

ZIP code, county, time zone and coordinates of Eureka, Utah

The ZIP code of Eureka, UT is 84628. It is in Juab County.

Mailing address format for Eureka

John Smith
123 Main St
EUREKA UT 84628
USA

USPS prefers capital letters without punctuation. Check the exact ZIP+4 for a street address on the USPS website.

ZIP code	Population	Area
84628	—	10.4 sq mi	Main

ZIP Code Tabulation Areas (ZCTA), U.S. Census Bureau. A ZCTA can cover parts of more than one town.

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What is the ZIP code for Eureka, UT?

The main ZIP code for Eureka, UT is 84628.

How many ZIP codes does Eureka have?

Eureka has 1 ZIP code.

What county is Eureka, UT in?

Eureka is in Juab County, Utah.

What time zone is Eureka in?

Eureka is in the America/Denver time zone (MST, UTC-07:00 right now).

What are the coordinates of Eureka?

Latitude 39.95866, longitude -112.11508.

Last updated: November 14, 2026