How to Write a Louisiana Address (With Examples)

Address basics  |   |  2 min read

Here is how to write a mailing address in Louisiana, with examples from Baton Rouge and New Orleans and the most common mistakes to avoid.

The standard format

RECIPIENT NAME STREET NUMBER AND NAME, UNIT CITY, LA ZIP CODE

The state is always written as LA, two capital letters with no periods. USPS prefers the city, state and ZIP on the same final line.

Example: Baton Rouge

Jennifer Garcia 619 Willow Blvd Baton Rouge, LA 70819

Example with an apartment in New Orleans

Ashley Harris 141 Orchard Ave Apt 25A New Orleans, LA 70116

Example with a PO Box

Emily Reed PO Box 5366 Baton Rouge, LA 70836

PO Boxes often have their own ZIP code, separate from street addresses in the same town. Check the ZIP with the post office that holds the box.

Common mistakes

  • Writing the full state name or an old abbreviation instead of LA.
  • Putting the apartment number on a line below the street address.
  • Using a ZIP code from a neighboring city. One city can have many codes, but each street belongs to a specific one.

Counties and local details

Louisiana is divided into 69 parishes. The county does not appear in a mailing address, but it matters for sales tax, elections and some shipping rules, so many business systems store it separately.

Create realistic Louisiana addresses for testing, with real cities, counties and ZIP codes.

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