Lake Charles, LA ZIP Codes, Area Codes and Address Format

City guides  |  August 3, 2026  |  2 min read

Lake Charles is one of the busiest mail areas in Louisiana, with 6 standard ZIP codes in Calcasieu Parish. Here is everything you need to format a Lake Charles address correctly.

State

Louisiana (LA)

County

Calcasieu Parish

Standard ZIP codes

6

Time zone

Central

Lake Charles ZIP codes

These are the standard delivery ZIP codes for Lake Charles. The city has 11 ZIP codes in total when PO Box and unique codes are included.

• 70601
• 70605
• 70607
• 70611
• 70615
• 70629

Area codes in Lake Charles

Lake Charles phone numbers use 337. A single area code keeps local numbers easy to recognize.

Sample Lake Charles addresses

The street lines are invented; the city, state and ZIP codes are real. Use them for form testing, mockups and training materials, never for real orders.

How to write an address in Lake Charles

• End the address with LAKE CHARLES, LA and the five-digit ZIP code.
• Put apartment or suite numbers at the end of the street line.
• Use USPS abbreviations such as ST, AVE and BLVD.
• Match the ZIP code to the street. Lake Charles has 6 codes, so the city name alone is not enough.

More Louisiana cities

Metairie, Slidell, Shreveport, Covington, Monroe, or see all Louisiana cities.