| Districts |
|---|
| Alto Biavo, Bellavista |
| Bajo Biavo, Bellavista |
| Bellavista, Bellavista |
| Huallaga, Bellavista |
| San Pablo, Bellavista |
| San Rafael, Bellavista |
| All postal codes in San Martín |
|---|
| Bellavista |
| El Dorado |
| Huallaga |
| Lamas |
| Mariscal Cáceres |
| Moyobamba |
| Picota |
| Rioja |
| San Martín |
| Tocache |