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ZIP codes in Rich County

4 ZIPs touch Rich County, Utah. The blue dashed line is the county border; orange ZIPs reach into it.

4

ZIP codes

0

cross the county line

2,631

people in these ZIPs

29

counties in UT

Most people

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Rich County ZIP list

More counties in Utah

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Questions people actually ask

How many ZIP codes are in Rich County, Utah?

4 ZIP codes reach into Rich County. Every ZIP area here lies wholly inside the county.

Which ZIP code in Rich County has the most people?

84064 (Randolph) has about 846 residents, the most of any ZIP touching Rich County, in the Census Bureau’s ACS 2020–2024 estimates.

Can a ZIP code be in Rich County and another county?

Yes. ZIP codes follow mail routes, not county lines. Rows marked with a percentage show how much of that ZIP’s land is in Rich County. For one address, pin the exact spot on the ZIP finder to see its county.

Where does this list come from?

ZIP areas and their county overlaps come from the Census Bureau’s 2020 ZIP Code Tabulation Area to county relationship file. PO Box ZIPs have no area, so each is placed in the county of the ZIP area nearest the town it serves.

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