There are a total of 16 Postal Codes in San Martín Region Peru
| Postal Code | Place Name | Region | Province | |||
|---|---|---|---|---|---|---|
| Cacatachi | San Martín | San Martín | |||
| La Banda de Shilcayo | San Martín | San Martín | |||
| Tarapoto | San Martín | San Martín | |||
| Tarapoto | San Martín | San Martín | |||
| San Antonio | San Martín | San Martín | |||
| El Porvenir | San Martín | San Martín | |||
| Papaplaya | San Martín | San Martín | |||
| Chipurana | San Martín | San Martín | |||
| Huimbayoc | San Martín | San Martín | |||
| Chazuta | San Martín | San Martín | |||
| Chazuta | San Martín | San Martín | |||
| Alberto Leveau | San Martín | San Martín | |||
| Sauce | San Martín | San Martín | |||
| Sauce | San Martín | San Martín | |||
| Juan Guerra | San Martín | San Martín | |||