ZIP codes in Jackson County
77 ZIPs touch Jackson County, Missouri. The blue dashed line is the county border; orange ZIPs reach into it.
77
ZIP codes
7
cross the county line
742,429
people in these ZIPs
115
counties in MO
Most people
Jackson County ZIP list
More counties in Missouri
- Henry County11
- Hickory County13
- Holt County6
- Howard County10
- Howell County13
- Iron County16
- Jasper County21
- Jefferson County28
- Johnson County19
- Knox County13
- Laclede County12
- Lafayette County16
Questions people actually ask
How many ZIP codes are in Jackson County, Missouri?
77 ZIP codes reach into Jackson County, including 19 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 Jackson County has the most people?
64133 (Kansas City) has about 36,249 residents, the most of any ZIP touching Jackson County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Jackson 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 Jackson 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