| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Monte Florido, Lavalle | W3440 XAA |
| Postal/ZIP Codes in Naranjito, Lavalle | W3440 XAB |
| Postal/ZIP Codes in Puente Batel, Lavalle | W3445 XAJ |
| Postal/ZIP Codes in Puerta Ifran, Lavalle | W3445 XAK |
| Postal/ZIP Codes in Quinta Teresa, Lavalle | W3440 XAI |
| Postal/ZIP Codes in Rincón de Soto, Lavalle | W3443 XAB |
| Postal/ZIP Codes in Saladero San Antonio, Lavalle | W3443 XAC |
| Postal/ZIP Codes in San Antonio, Lavalle | W3445 XAP |
| Postal/ZIP Codes in San Eugenio, Lavalle | W3440 XAH |
| Postal/ZIP Codes in San Luis, Lavalle | W3445 XAQ |
| Postal/ZIP Codes in Santa Lucía, Lavalle | W3440 |
| Postal/ZIP Codes in Santa Lucia 9 de Julio, Lavalle | W3445 XAN |
| Postal/ZIP Codes in Vedoya, Lavalle | W3445 XAR |
| Postal/ZIP Codes in Villa Aquino, Lavalle | W3440 XAL |
| Postal/ZIP Codes in Villa Córdoba, Lavalle | W3440 XAM |
| Postal/ZIP Codes in Yatay, Lavalle | W3445 XAT |
| Postal/ZIP Codes in Yatayti Calle, Lavalle | W3445 XAS |