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ZIP codes in Oneida County

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

4

ZIP codes

2

cross the county line

6,375

people in these ZIPs

44

counties in ID

Most people

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Oneida County ZIP list

More counties in Idaho

All 44 counties in Idaho

Questions people actually ask

How many ZIP codes are in Oneida County, Idaho?

4 ZIP codes reach into Oneida County. 2 of them are only partly in the county and also cover a neighboring county.

Which ZIP code in Oneida County has the most people?

83252 (Malad City) has about 4,707 residents, the most of any ZIP touching Oneida County, in the Census Bureau’s ACS 2020–2024 estimates.

Can a ZIP code be in Oneida 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 Oneida 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