| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in 9 de Julio Kilómetro 20, Eldorado | N3382 XAG |
| Postal/ZIP Codes in Colonia Cunci, Eldorado | N3382 XAA |
| Postal/ZIP Codes in Colonia Delicia, Eldorado | N3382 XAB |
| Postal/ZIP Codes in Colonia Duran, Eldorado | N3382 XAC |
| Postal/ZIP Codes in Colonia Victoria, Eldorado | N3388 |
| Postal/ZIP Codes in Eldorado, Eldorado | N3380, N3382 |
| Postal/ZIP Codes in María Magdalena, Eldorado | N3382 XAJ |
| Postal/ZIP Codes in Pati Cua, Eldorado | N3382 XAI |
| Postal/ZIP Codes in Puerto El Dorado, Eldorado | N3382 XAF |
| Postal/ZIP Codes in Puerto Mado, Eldorado | N3382 XAD |
| Postal/ZIP Codes in Puerto Paticaa, Eldorado | N3382 XAE |
| Postal/ZIP Codes in Puerto Pinares, Eldorado | N3389 |
| Postal/ZIP Codes in Puerto Victoria, Eldorado | N3382 XAL |
| Postal/ZIP Codes in Santiago de Liniers, Eldorado | N3387 |
| Postal/ZIP Codes in Villa Roulet, Eldorado | N3382 XAM |