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ZIP codes in Monroe County

16 ZIPs touch Monroe County, Missouri. The blue dashed line is the county border; orange ZIPs reach into it.

16

ZIP codes

12

cross the county line

59,953

people in these ZIPs

115

counties in MO

Most people

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Monroe County ZIP list

More counties in Missouri

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Questions people actually ask

How many ZIP codes are in Monroe County, Missouri?

16 ZIP codes reach into Monroe County. 12 of them are only partly in the county and also cover a neighboring county.

Which ZIP code in Monroe County has the most people?

65270 (Moberly) has about 16,612 residents, the most of any ZIP touching Monroe County, in the Census Bureau’s ACS 2020–2024 estimates.

Can a ZIP code be in Monroe 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 Monroe 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