ZIP codes in Hancock County
5 ZIPs touch Hancock County, Tennessee. The blue dashed line is the county border; orange ZIPs reach into it.
5
ZIP codes
4
cross the county line
19,736
people in these ZIPs
95
counties in TN
Most people
Hancock County ZIP list
More counties in Tennessee
- Giles County17
- Grainger County10
- Greene County11
- Grundy County10
- Hamblen County10
- Hamilton County37
- Hardeman County12
- Hardin County14
- Hawkins County12
- Haywood County6
- Henderson County14
- Henry County10
Questions people actually ask
How many ZIP codes are in Hancock County, Tennessee?
5 ZIP codes reach into Hancock County. 4 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Hancock County has the most people?
37879 (Tazewell) has about 11,854 residents, the most of any ZIP touching Hancock County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Hancock 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 Hancock 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