| Place | Post Code |
|---|---|
| Santa Constancia, Sayán | 15240 |
| Santa Constansa, Sayán | 15240 |
| Santa Elvira, Sayán | 15240 |
| Santa Isabel (San Andres) (Fundo Santa Isabel), Sayán | 15240 |
| Santa Rosa, Sayán | 15240 |
| Santa Rosita, Sayán | 15240 |
| Santa Rufina, Sayán | 15240 |
| Santa Victoria, Sayán | 15240 |
| Sayan, Sayán | 15237 |
| Tambera Alta, Sayán | 15240 |
| Tambera Baja, Sayán | 15240 |
| Tiwinza, Sayán | 15240 |
| Topaya, Sayán | 15240 |
| Tres Montones, Sayán | 15240 |
| Union Izquierda, Sayán | 15240 |
| Villa Victoria, Sayán | 15240 |
| Vista Alegre, Sayán | 15240 |
| Vizquira, Sayán | 15240 |