ZIP codes in Lafayette Parish
23 ZIPs touch Lafayette Parish, Louisiana. The blue dashed line is the county border; orange ZIPs reach into it.
23
ZIP codes
10
cross the county line
352,191
people in these ZIPs
64
counties in LA
Most people
Lafayette Parish ZIP list
More counties in Louisiana
- Iberia Parish12
- Iberville Parish9
- Jackson Parish7
- Jefferson Davis Parish10
- Jefferson Parish30
- LaSalle Parish9
- Lafourche Parish16
- Lincoln Parish9
- Livingston Parish19
- Madison Parish5
- Morehouse Parish8
- Natchitoches Parish24
Questions people actually ask
How many ZIP codes are in Lafayette Parish, Louisiana?
23 ZIP codes reach into Lafayette Parish, including 7 PO Box or single-address ZIPs placed by the town they serve. 10 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Lafayette Parish has the most people?
70506 (Lafayette) has about 42,318 residents, the most of any ZIP touching Lafayette Parish, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Lafayette 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 Lafayette 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