| Place | Post Code |
|---|---|
| Alegrete, Alegrete | 97541, 97542, 97543, 97544, 97545, 97546, 97547, 97551 |
| Catimbau, Alegrete | 97558-000 |
| Durasnal, Alegrete | 97557-000 |
| Guassu Boi, Alegrete | 97553-000 |
| Inhanduí, Alegrete | 97552-000 |
| Itapororó, Alegrete | 97554-000 |
| Passo Novo, Alegrete | 97555-000 |
| Rincão de São Miguel, Alegrete | 97556-000 |
| Vasco Alves, Alegrete | 97559-000 |