504 Area Code — Louisiana
504 is a North American Numbering Plan area code for Louisiana, the United States. It covers about 877,495 people in 23 towns and 105 ZIP codes, including New Orleans, Metairie and Kenner.
| Field | Value |
|---|---|
| Area code | 504 |
| Country | United States (+1) |
| State / province | Louisiana |
| Type | Standalone (no other NANP code covers the same towns) |
| Time zone | Central |
| Population covered | 877,495 |
| Towns covered | 23 |
| ZIP codes | 105 |
| Approx. centre | 29.914, -90.054 |
Where area code 504 is used
Area code 504 is assigned to Louisiana, the United States, inside the North American Numbering Plan. Numbers in the code are written (504) NXX-XXXX at home and +1 504 NXX-XXXX when dialled from outside Canada and the United States. Since the NANP moved to 10-digit dialling you must always include the area code, even for a local call.
Towns and cities in area code 504
The 23 towns below are the largest in the 504 footprint, ranked by population. Every one of them links to its own page with the full list of area codes and ZIP codes for that town.
| Town | County | Population | ZIP codes |
|---|---|---|---|
| New Orleans | Orleans Parish | 409,797 | 61 |
| Metairie | Jefferson Parish | 137,978 | 12 |
| Kenner | Jefferson Parish | 66,707 | 5 |
| Gretna | Jefferson Parish | 56,969 | 3 |
| Marrero | Jefferson Parish | 55,693 | 2 |
| Harvey | Jefferson Parish | 39,578 | 2 |
| Westwego | Jefferson Parish | 32,130 | 2 |
| Chalmette | St. Bernard Parish | 22,638 | 2 |
| Belle Chasse | Plaquemines Parish | 16,639 | 2 |
| Saint Rose | St. Charles Parish | 7,314 | 1 |
| Violet | St. Bernard Parish | 6,936 | 1 |
| Meraux | St. Bernard Parish | 5,392 | 1 |
Counties covered
| County | ZIP codes |
|---|---|
| Orleans Parish | 56 |
| Jefferson Parish | 33 |
| Plaquemines Parish | 8 |
| St. Bernard Parish | 6 |
| St. Charles Parish | 2 |
Nearby area codes
How to dial area code 504
- Within North America: 504 + 7-digit number (504-NXX-XXXX). The leading 1 is optional on a mobile phone and required on most landlines for long-distance.
- From abroad: your country's international prefix, then 1, then 504, then the 7-digit number — for example 00 1 504 NXX-XXXX from most of Europe.
Frequently asked questions
What area code is 504?
504 is a North American Numbering Plan area code assigned to Louisiana, the United States. It covers about 877,495 people in 23 towns.
Is 504 a US or Canadian area code?
504 is a United States area code. Canada and the United States share the +1 country code, so both are part of the same numbering plan.
What time zone is area code 504 in?
Area code 504 is in the Central time zone.
Do I have to dial 10 digits?
Yes. Every NANP call now requires the area code plus the seven-digit number, even for a local call.