| Districts |
|---|
| Canpanilla, Mariscal Cáceres |
| Huicungo, Mariscal Cáceres |
| Juanjuí, Mariscal Cáceres |
| Pachiza, Mariscal Cáceres |
| Pajarillo, Mariscal Cáceres |
| All postal codes in San Martín |
|---|
| Bellavista |
| El Dorado |
| Huallaga |
| Lamas |
| Mariscal Cáceres |
| Moyobamba |
| Picota |
| Rioja |
| San Martín |
| Tocache |