| Boundary tags |
| Admin. level | 9 |
| Boundary | Administrative |
| idee:name | Castillo/Gaztelu |
| name | Castillo/Gaztelu |
| type | Boundary |
| Place tags |
| elevation (m) | 666 |
| Official name | Castillo/Gaztelu |
| place type | Hamlets |
| population | 65 |
| population:date | 2022 |
| ref:ine | 01059002101 |
| source | Instituto Geográfico Nacional |
| source:date | 2011-06 |
| source:ele | MDT5 |
| source:name | Nomenclátor Concejos (araba.eus) |
| url:source:name | https: //www.araba.eus/elva/Nomenclator/ELVA5004NomCoc.asp |