| Locality | Post Code |
|---|---|
| Agua Colorada, Belén | K4750 XCL |
| Agua del Campo, Belén | K4750 XAK |
| Alto El Bolsón, Belén | K4751 XAF |
| Ampujaco, Belén | K4750 XCO |
| Angostura, Belén | K4750 XAL |
| Asampay, Belén | K4750 XBR |
| Belén, Belén | K4750 |
| Cachuan, Belén | K4750 XBJ |
| Casa Grande, Belén | K4750 XAM |
| Chiquerito, Belén | K4750 XAN |
| Chucolay, Belén | K4750 XAA |
| Condor Huasi de Belen, Belén | K4751 XAD |
| Corral Quemado, Belén | K4751 XAA |
| Cortadera, Belén | K4750 XAB |
| Cueva Blanca, Belén | K4750 XAC |
| Culampajá, Belén | K4750 XCR |
| Duraznillo, Belén | K4750 XBO |
| El Cajón, Belén | K4750 XCT |
| El Durazno, Belén | K4750 XCW |
| El Eje, Belén | K4754 |
| El Medio, Belén | K4750 XCD |
| El Molino, Belén | K4750 XBX |
| El Portezuelo, Belén | K4750 XBY |
| El Tolar, Belén | K4750 XCA |
| Farallón Negro, Belén | K4751 XAB |
| Huaco, Belén | K4750 XCB |
| Catamarca Postal Codes | |
|---|---|
| Valle Viejo | Tinogasta |
| Santa Rosa | Santa María |
| Pomán | Paclín |
| La Paz | Fray Mamerto Esquiú |
| El Alto | Capital |
| Capayán | Belén |
| Antofagasta de la Sierra | Andalgalá |
| Ancasti | Ambato |