| Place | Post Code |
|---|---|
| Angamos, Barranca | 16600 |
| Bagazan, Barranca | 16600 |
| Barranca, Barranca | 16600 |
| Boca Sasipahua, Barranca | 16600 |
| Bristol, Barranca | 16600 |
| Buena Vista, Barranca | 16600 |
| Copal, Barranca | 16600 |
| Estrella, Barranca | 16600 |
| Gallito, Barranca | 16600 |
| Hachapoza, Barranca | 16600 |
| Huamachuco, Barranca | 16600 |
| Huangana Brazo, Barranca | 16600 |
| Indio del Peru, Barranca | 16600 |
| Laurel, Barranca | 16600 |
| Libertad, Barranca | 16600 |
| Linches, Barranca | 16600 |
| Lurin, Barranca | 16600 |
| Miraflores, Barranca | 16600 |
| Monzante, Barranca | 16600 |
| Nayumpim, Barranca | 16600 |
| Nueva Esperanza, Barranca | 16600 |
| Nueva Islandia, Barranca | 16600 |
| Nueva Union, Barranca | 16600 |
| Nuevo Kupit, Barranca | 16600 |
| Nuevo Milagro, Barranca | 16600 |
| Nuevo Pongo, Barranca | 16600 |
| All postal codes in Datem del Marañón | |
|---|---|
| Andoas, Datem del Marañón | |
| Barranca, Datem del Marañón | |
| Cahuapanas, Datem del Marañón | |
| Manseriche, Datem del Marañón | |
| Morona, Datem del Marañón | |
| Pastaza, Datem del Marañón | |