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You can find ZIP codes by city or state using our search tool. Just enter the city or state name, and you'll see all related ZIP codes instantly.

What is a ZIP+4 code?

A ZIP+4 code adds four digits to the basic five-digit ZIP code. It helps the USPS deliver mail more precisely to specific addresses or buildings.

Are ZIP codes the same as postal codes?

ZIP codes are the U.S. version of postal codes, used by the USPS to identify delivery areas. Other countries use postal codes with different formats.

Complete ZIP Codes For Jefferson, Louisiana

Browse Jefferson ZIP Codes

ZIP Codes in Jefferson County help organize mail delivery and define local service areas. Each ZIP Code corresponds to a specific community or post office, ensuring residents, businesses, and visitors can find accurate address information quickly. By browsing the complete list of Jefferson ZIP Codes, you can easily identify the correct code for mailing, business, or geographic purposes.

Marrero

Post Office	Marrero
Division	Jefferson
Pincode	70072

Kenner

Post Office	Kenner
Division	Jefferson
Pincode	70065

Gretna

Post Office	Gretna
Division	Jefferson
Pincode	70056

Harvey

Post Office	Harvey
Division	Jefferson
Pincode	70058

Metairie

Post Office	Metairie
Division	Jefferson
Pincode	70001

Metairie

Post Office	Metairie
Division	Jefferson
Pincode	70003

Total Post Offices (34) Page 1 of 6
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Cities in Jefferson

17 cities in Jefferson County | List of ZIP Codes in Louisiana

ZIP codes in Jefferson County, Louisiana not only facilitate mail delivery but also provide important demographic and geographic insights. Each ZIP code corresponds to specific areas within the county, helping businesses, residents, and researchers understand population distribution, city locations, and service coverage across Jefferson County.

Businesses and service providers rely on accurate ZIP code information in Jefferson County to plan deliveries, target customers, and ensure timely services. By referencing the full list of ZIP codes, companies can optimize logistics and outreach, while residents can easily identify the correct postal codes for their addresses within Louisiana.

Knowing the correct ZIP codes in Jefferson County ensures fast and accurate mail delivery from the United States Postal Service (USPS). It also helps travelers, online shoppers, and local residents navigate efficiently across towns and communities in Jefferson County, making ZIP codes an essential part of daily life and business operations.