| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in 12 de Marzo, Portoviejo | 130107 |
| Postal/ZIP Codes in Colon, Portoviejo | 130118 |
| Postal/ZIP Codes in Picoaza, Portoviejo | 130110 |
| Postal/ZIP Codes in Portoviejo, Portoviejo | 130101, 130102, 130103, 130104, 130105, 130106, 130107, 130108, 130109, 130110, 130111, 130112, 130113, 130115, 130118 |
| Postal/ZIP Codes in San Pablo, Portoviejo | 130112 |