| Place | Postal Code |
|---|---|
| Bado, San Pedro de Casta | 15515 |
| Coshca, San Pedro de Casta | 15515 |
| Huinco, San Pedro de Casta | 15515 |
| San Antonio de Cumpe, San Pedro de Casta | 15515 |
| San Juan de Mayhuay, San Pedro de Casta | 15515 |
| San Pedro de Casta, San Pedro de Casta | 15515 |
| Upica, San Pedro de Casta | 15515 |
| Viquil, San Pedro de Casta | 15515 |