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ZIP codes in Lamar County

9 ZIPs touch Lamar County, Alabama. The blue dashed line is the county border; orange ZIPs reach into it.

9

ZIP codes

6

cross the county line

39,069

people in these ZIPs

67

counties in AL

Most people

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Lamar County ZIP list

More counties in Alabama

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Questions people actually ask

How many ZIP codes are in Lamar County, Alabama?

9 ZIP codes reach into Lamar County. 6 of them are only partly in the county and also cover a neighboring county.

Which ZIP code in Lamar County has the most people?

35570 (Hamilton) has about 11,138 residents, the most of any ZIP touching Lamar County, in the Census Bureau’s ACS 2020–2024 estimates.

Can a ZIP code be in Lamar 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 Lamar 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