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ZIP codes in Noble County

18 ZIPs touch Noble County, Indiana. The blue dashed line is the county border; orange ZIPs reach into it.

18

ZIP codes

13

cross the county line

107,731

people in these ZIPs

92

counties in IN

Most people

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Noble County ZIP list

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Questions people actually ask

How many ZIP codes are in Noble County, Indiana?

18 ZIP codes reach into Noble County. 13 of them are only partly in the county and also cover a neighboring county.

Which ZIP code in Noble County has the most people?

46725 (Columbia City) has about 23,297 residents, the most of any ZIP touching Noble County, in the Census Bureau’s ACS 2020–2024 estimates.

Can a ZIP code be in Noble 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 Noble 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