| Postal Code | Postal Code Place Name | Department |
|---|---|---|
| 30000 | Lavalleja | Lavalleja |
| 30001 | Mariscala | Lavalleja |
| 30002 | Pirarajá | Lavalleja |
| 30007 | Colón | Lavalleja |
| 30009 | Polanco | Lavalleja |
| 30020 | Estación Solís | Lavalleja |
| 30100 | Lavalleja | Lavalleja |
| 30200 | José Batlle y Ordóñez | Lavalleja |
| 30202 | Illescas | Lavalleja |
| 30300 | Lavalleja | Lavalleja |
| 30301 | Zapicán | Lavalleja |
| 34100 | Lavalleja | Lavalleja |
| 34200 | Lavalleja | Lavalleja |