| Locality | Post Code |
|---|---|
| Tacural, Castellanos | S2324 |
| Tres Colonias, Castellanos | S2300 XAF |
| Vila, Castellanos | S2306 |
| Villa San José, Castellanos | S2323 |
| Villani, Castellanos | S2400 XAA |
| Virginia, Castellanos | S2311 XAD |
| Zanetti, Castellanos | S2301 XAF |
| Zenón Pereyra, Castellanos | S2409 |