| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Apaji, Ocotal | 37000 |
| Postal/ZIP Codes in Barrio Sandino, Ocotal | 37000 |
| Postal/ZIP Codes in Cerro La Cruz, Ocotal | 37000 |
| Postal/ZIP Codes in El Majeste, Ocotal | 37000 |
| Postal/ZIP Codes in Rio Grande, Ocotal | 37000 |
| Postal/ZIP Codes in San Fabian, Ocotal | 37000 |
| Postal/ZIP Codes in Santos Duarte, Ocotal | 37000 |