ZIP codes in Dunklin County
15 ZIPs touch Dunklin County, Missouri. The blue dashed line is the county border; orange ZIPs reach into it.
15
ZIP codes
7
cross the county line
33,368
people in these ZIPs
115
counties in MO
Most people
Dunklin County ZIP list
More counties in Missouri
- Dade County13
- Dallas County13
- Daviess County16
- DeKalb County10
- Dent County8
- Douglas County16
- Franklin County23
- Gasconade County13
- Gentry County13
- Greene County32
- Grundy County7
- Harrison County13
Questions people actually ask
How many ZIP codes are in Dunklin County, Missouri?
15 ZIP codes reach into Dunklin County, including 1 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 Dunklin County has the most people?
63857 (Kennett) has about 11,930 residents, the most of any ZIP touching Dunklin County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Dunklin 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 Dunklin 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