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ZIP codes in Pierce County

82 ZIPs touch Pierce County, Washington. The blue dashed line is the county border; orange ZIPs reach into it.

82

ZIP codes

7

cross the county line

1,001,883

people in these ZIPs

39

counties in WA

Most people

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Pierce County ZIP list

More counties in Washington

All 39 counties in Washington

Questions people actually ask

How many ZIP codes are in Pierce County, Washington?

82 ZIP codes reach into Pierce County, including 22 PO Box or single-address ZIPs placed by the town they serve. 7 of them are only partly in the county and also cover a neighboring county.

Which ZIP code in Pierce County has the most people?

98391 (Bonney Lake) has about 59,240 residents, the most of any ZIP touching Pierce County, in the Census Bureau’s ACS 2020–2024 estimates.

Can a ZIP code be in Pierce 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 Pierce 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