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ZIP codes in Marshall County

3 ZIPs touch Marshall County, Oklahoma. The blue dashed line is the county border; orange ZIPs reach into it.

3

ZIP codes

1

cross the county line

15,838

people in these ZIPs

77

counties in OK

Most people

← All Oklahoma ZIP codes

Marshall County ZIP list

More counties in Oklahoma

All 77 counties in Oklahoma

Questions people actually ask

How many ZIP codes are in Marshall County, Oklahoma?

3 ZIP codes reach into Marshall County. 1 of them are only partly in the county and also cover a neighboring county.

Which ZIP code in Marshall County has the most people?

73446 (Madill) has about 8,479 residents, the most of any ZIP touching Marshall County, in the Census Bureau’s ACS 2020–2024 estimates.

Can a ZIP code be in Marshall 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 Marshall 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