| Locality | Post Code |
|---|---|
| Los Ralos, Choya | G4230 XCA |
| Luján, Choya | G4230 XBP |
| Maquijata, Choya | G4203 XAR |
| Maravilla, Choya | G4203 XBB |
| Mate Pampa, Choya | G4203 XAS |
| Mendoza, Choya | G4237 XAH |
| Mojoncito, Choya | G4233 XAY |
| Monte Redondo, Choya | G4230 XBM |
| Monteagudo, Choya | G4230 XBO |
| Oncajan, Choya | G4233 XAU |
| Palo Lindo, Choya | G4230 XBT |
| Palo Parado, Choya | G4230 XBU |
| Pampa Pozo, Choya | G4230 XAZ |
| Parana, Choya | G5266 XAA |
| Pocito de la Loma, Choya | G4233 XAE |
| Porongal, Choya | G4230 XBA |
| Pozancones, Choya | G4230 XAJ |
| Pozo Cercado, Choya | G4203 XAT |
| Pozo de la Puerta, Choya | G4230 XCB |
| Pozo del Campo, Choya | G4223 XAM |
| Pueda Ser, Choya | G4233 XAL |
| Puerta de Las Piedras, Choya | G4230 XCC |
| Puerta del Cielo, Choya | G4203 XAV |
| Puesto, Choya | G4233 XAM |
| Quebrachos, Choya | G4203 XAX |
| Remansito, Choya | G4230 XCD |
| Santiago del Estero Postal Codes | |
|---|---|
| Silípica | Sarmiento |
| Salavina | Río Hondo |
| Robles | Rivadavia |
| Quebrachos | Pellegrini |
| Ojo de Agua | Moreno |
| Mitre | Loreto |
| Juan Felipe Ibarra | Jiménez |
| Guasayán | General Taboada |
| General San Martín | Figueroa |
| Copo | Choya |
| Capital | Belgrano |
| Banda | Avellaneda |
| Atamisqui | Alberdi |
| Aguirre | |