| Locality | Post Code |
|---|---|
| Barrio Pedro Rocco, General Lavalle | B7109 XAB |
| Faro San Antonio, General Lavalle | B7103 XAA |
| General Lavalle, General Lavalle | B7103 |
| La Mascota, General Lavalle | B7119 XAA |
| La Tablada, General Lavalle | B7163 XAA |
| La Victoria, General Lavalle | B7109 XAA |
| Salada Chica, General Lavalle | B7163 XAB |
| Salada Grande, General Lavalle | B7163 XAC |
| San José de Los Quinteros, General Lavalle | B7109 XAC |
| Santa Teresa, General Lavalle | B7163 XAD |
| Villa Clelia, General Lavalle | B7109 XAD |