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ZIP codes in Lake County

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

3

ZIP codes

2

cross the county line

6,768

people in these ZIPs

95

counties in TN

Most people

← All Tennessee ZIP codes

Lake County ZIP list

More counties in Tennessee

All 95 counties in Tennessee

Questions people actually ask

How many ZIP codes are in Lake County, Tennessee?

3 ZIP codes reach into Lake County. 2 of them are only partly in the county and also cover a neighboring county.

Which ZIP code in Lake County has the most people?

38079 (Tiptonville) has about 4,262 residents, the most of any ZIP touching Lake County, in the Census Bureau’s ACS 2020–2024 estimates.

Can a ZIP code be in Lake 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 Lake 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