ZIP Code Lookup For Jefferson County, Louisiana - United States

ZIP Codes in Jefferson County

Marrero

Post Office	Marrero
County	Jefferson
ZIP Code	70072

Kenner

Post Office	Kenner
County	Jefferson
ZIP Code	70065

Gretna

Post Office	Gretna
County	Jefferson
ZIP Code	70056

Harvey

Post Office	Harvey
County	Jefferson
ZIP Code	70058

Metairie

Post Office	Metairie
County	Jefferson
ZIP Code	70001

Metairie

Post Office	Metairie
County	Jefferson
ZIP Code	70003

Total ZIP Codes: (34) | Page 1 of 6
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About ZIP Codes in Jefferson County, Louisiana

Jefferson County covers multiple cities and each city can have one or more ZIP Codes assigned by USPS for accurate mail delivery.

Frequently Asked Questions (FAQs)

1. How many ZIP Codes are there in Jefferson County?

Each city in Jefferson County may have one or more ZIP Codes.

2. Who manages ZIP Codes in the USA?

ZIP Codes are assigned and maintained by the United States Postal Service (USPS).

3. Why do counties have ZIP Codes?

Counties contain multiple cities and towns, so ZIP Codes help organize delivery routes.

4. How to find ZIP Codes in my county?

Use the dropdowns above to choose your city and get its ZIP Code.

5. Can one county have overlapping ZIP Codes?

Yes, sometimes ZIP Code areas can cross county lines for postal convenience.

Cities in Jefferson County

17 city/cities found in Jefferson. Explore ZIP code details in Louisiana for county Jefferson.

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