| Locality | Post Code |
|---|---|
| La Flor, Rancho Grande | 63300 |
| La Granja, Rancho Grande | 63300 |
| La Nueva, Rancho Grande | 63300 |
| Las Brisas, Rancho Grande | 63300 |
| Las Carpas, Rancho Grande | 63300 |
| Lugar Canada La Castilla, Rancho Grande | 63300 |
| Manceras, Rancho Grande | 63300 |
| Masapa, Rancho Grande | 63300 |
| Pajaro Arriba, Rancho Grande | 63300 |
| Pajaro Central, Rancho Grande | 63300 |
| San Antonio, Rancho Grande | 63300 |
| San Antonio de Kuskawas, Rancho Grande | 63300 |
| San Francisco, Rancho Grande | 63300 |
| San Jose, Rancho Grande | 63300 |
| San Juan, Rancho Grande | 63300 |
| San Lucas, Rancho Grande | 63300 |
| San Miguel, Rancho Grande | 63300 |
| Yaosca I, Rancho Grande | 63300 |
| Matagalpa Postal Codes | |
|---|---|
| Terrabona | Sébaco |
| San Ramón | San Isidro |
| San Dionisio | Río Blanco |
| Rancho Grande | Muy Muy |
| Matiguás | Matagalpa |
| Esquipulas | El Tuma - La Dalia |
| Ciudad Darío | |