| Country | Finland (FI) |
| UN/LOCODE | OLA |
| Name | Oulainen |
| Name Without Diacritics | Oulainen |
| Region | 14 |
| Function Code | -23----- |
| Function | Rail, Road |
| Status Code | RL (Recognised Location) |
| Date | 1401 |
| Timezone | Europe/Helsinki |
| Location (UN Format) | 6416N 02448E |
| Latitude Longitude | 64.2667, 24.8 |