| Place | Post Code |
|---|---|
| Alto Molino, Río Grande | 04770 |
| Apillao, Río Grande | 04770 |
| Arroyo, Río Grande | 04770 |
| Avispa, Río Grande | 04770 |
| Buenos Aires, Río Grande | 04770 |
| Callanga, Río Grande | 04770 |
| Champune, Río Grande | 04770 |
| Cuhicha, Río Grande | 04770 |
| El Monte, Río Grande | 04770 |
| Hispana, Río Grande | 04770 |
| Huaca, Río Grande | 04770 |
| Huaco, Río Grande | 04770 |
| Huame, Río Grande | 04770 |
| Iquipi, Río Grande | 04770 |
| La Capilla, Río Grande | 04770 |
| La Isla, Río Grande | 04770 |
| La Victoria, Río Grande | 04770 |
| Miraflor, Río Grande | 04770 |
| Pedregal, Río Grande | 04770 |
| Piquillay, Río Grande | 04770 |
| Piuca, Río Grande | 04770 |
| San Juan de Chorunga, Río Grande | 04770 |
| San Rufino, Río Grande | 04770 |
| Santa Marta, Río Grande | 04770 |
| Santa Rita, Río Grande | 04770 |
| Santa Rosa, Río Grande | 04770 |