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ZIP codes in Calcasieu Parish

23 ZIPs touch Calcasieu Parish, Louisiana. The blue dashed line is the county border; orange ZIPs reach into it.

23

ZIP codes

7

cross the county line

225,203

people in these ZIPs

64

counties in LA

Most people

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Calcasieu Parish ZIP list

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Questions people actually ask

How many ZIP codes are in Calcasieu Parish, Louisiana?

23 ZIP codes reach into Calcasieu Parish, including 5 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 Calcasieu Parish has the most people?

70605 (Lake Charles) has about 40,482 residents, the most of any ZIP touching Calcasieu Parish, in the Census Bureau’s ACS 2020–2024 estimates.

Can a ZIP code be in Calcasieu Parish 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 Calcasieu Parish. 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