| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in América, Rivadavia | B6237 |
| Postal/ZIP Codes in Badano, Rivadavia | B6403 XAC |
| Postal/ZIP Codes in Cerrito, Rivadavia | B6237 XAA |
| Postal/ZIP Codes in Colonia El Balde, Rivadavia | B6403 XAD |
| Postal/ZIP Codes in Condarco, Rivadavia | B6233 XAC |
| Postal/ZIP Codes in Fortín Olavarría, Rivadavia | B6403 |
| Postal/ZIP Codes in González Moreno, Rivadavia | B6239 |
| Postal/ZIP Codes in La Cautiva, Rivadavia | B6403 XAA |
| Postal/ZIP Codes in Meridiano Vo, Rivadavia | B6239 XAB |
| Postal/ZIP Codes in Mira Pampa, Rivadavia | B6403 XAB |
| Postal/ZIP Codes in Rivadavia, Rivadavia | B6237 XAB |
| Postal/ZIP Codes in Roosevelt, Rivadavia | B6407 |
| Postal/ZIP Codes in Roosevelt Partido Rivadavia, Rivadavia | B6407 |
| Postal/ZIP Codes in San Mauricio, Rivadavia | B6239 XAC |
| Postal/ZIP Codes in Sansinena, Rivadavia | B6233 XAB |
| Postal/ZIP Codes in Sundblad, Rivadavia | B6401 XAA |
| Postal/ZIP Codes in Valentín Gómez, Rivadavia | B6401 XAB |
| Postal/ZIP Codes in Villa Sena, Rivadavia | B6403 XAE |