| Country | United Kingdom (GB) |
| UN/LOCODE | GDO |
| Name | Grendon |
| Name Without Diacritics | Grendon |
| Region | WAR |
| Function Code | --3----- |
| Function | Road |
| Status Code | RL (Recognised Location) |
| Date | 901 |
| Timezone | Europe/London |
| Location (UN Format) | 5236N 00134W |
| Latitude Longitude | 52.6, -1.5667 |