ZIP codes in Marshall County
12 ZIPs touch Marshall County, Tennessee. The blue dashed line is the county border; orange ZIPs reach into it.
12
ZIP codes
11
cross the county line
181,889
people in these ZIPs
95
counties in TN
Most people
Marshall County ZIP list
More counties in Tennessee
- Lewis County7
- Lincoln County12
- Loudon County9
- Macon County8
- Madison County19
- Marion County12
- Maury County11
- McMinn County13
- McNairy County16
- Meigs County6
- Monroe County9
- Montgomery County16
Questions people actually ask
How many ZIP codes are in Marshall County, Tennessee?
12 ZIP codes reach into Marshall County. 11 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Marshall County has the most people?
38401 (Columbia) has about 67,482 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