El Salvador uses a four-digit postal code system, known locally as Codigo Postal, administered by the national postal service, Correos de El Salvador (ENCORREOS). Each code identifies a specific department and locality, helping to route mail efficiently across the country's fourteen departments.
Unlike some countries where postal codes closely map to city centers or neighborhoods, Salvadoran postal codes are generally assigned at the municipality level, with the first digits typically indicating the department. This system has remained relatively stable since its introduction, with periodic updates to accommodate new municipalities and urban growth.
The database currently includes a total of 261 postal codes for El Salvador.
| Department | Postal Codes |
|---|---|
| Chalatenango | 33 |
| Morazán | 26 |
| La Libertad | 22 |
| La Paz | 22 |
| Usulután | 22 |
| San Miguel | 20 |
| San Salvador | 19 |
| La Unión | 18 |
| Cuscatlán | 16 |
| Sonsonate | 16 |
| San Vicente | 13 |
| Santa Ana | 13 |
| Ahuachapán | 12 |
| Cabañas | 9 |