| Noyers (45260) | - | - |
| Oison (45170) | - | - |
| Olivet (45160) | - | - |
| Olivet Cedex (45161) | - | - |
| Olivet Cedex (45162) | - | - |
| Olivet Cedex (45163) | - | - |
| Olivet Cedex (45164) | - | - |
| Olivet Cedex (45165) | - | - |
| Olivet Cedex (45166) | - | - |
| Olivet Cedex (45167) | - | - |
| Olivet Cedex (45168) | - | - |
| Olivet Cedex (45169) | - | - |
| Ondreville Sur Essonne (45390) | - | - |
| Orleans (45000) | - | - |
| Orleans (45100) | - | - |
| Orleans Cedex 1 (45001) | - | - |
| Orleans Cedex 1 (45002) | - | - |
| Orleans Cedex 1 (45003) | - | - |
| Orleans Cedex 1 (45004) | - | - |
| Orleans Cedex 1 (45005) | - | - |
| Orleans Cedex 1 (45006) | - | - |
| Orleans Cedex 1 (45007) | - | - |
| Orleans Cedex 1 (45008) | - | - |
| Orleans Cedex 1 (45009) | - | - |
| Orleans Cedex 1 (45010) | - | - |
| Orleans Cedex 1 (45011) | - | - |
| Orleans Cedex 1 (45012) | - | - |
| Orleans Cedex 1 (45013) | - | - |
| Orleans Cedex 1 (45014) | - | - |
| Orleans Cedex 1 (45015) | - | - |
| Orleans Cedex 1 (45016) | - | - |
| Orleans Cedex 1 (45017) | - | - |
| Orleans Cedex 1 (45018) | - | - |
| Orleans Cedex 1 (45019) | - | - |
| Orleans Cedex 1 (45020) | - | - |
| Orleans Cedex 1 (45021) | - | - |
| Orleans Cedex 1 (45022) | - | - |
| Orleans Cedex 1 (45023) | - | - |
| Orleans Cedex 1 (45024) | - | - |
| Orleans Cedex 1 (45025) | - | - |
| Orleans Cedex 1 (45026) | - | - |
| Orleans Cedex 1 (45027) | - | - |
| Orleans Cedex 1 (45028) | - | - |
| Orleans Cedex 1 (45029) | - | - |
| Orleans Cedex 1 (45030) | - | - |
| Orleans Cedex 1 (45031) | - | - |
| Orleans Cedex 1 (45032) | - | - |
| Orleans Cedex 1 (45033) | - | - |
| Orleans Cedex 1 (45034) | - | - |
| Orleans Cedex 1 (45035) | - | - |
| Orleans Cedex 1 (45036) | - | - |
| Orleans Cedex 1 (45037) | - | - |
| Orleans Cedex 1 (45038) | - | - |
| Orleans Cedex 1 (45039) | - | - |
| Orleans Cedex 1 (45040) | - | - |
| Orleans Cedex 1 (45041) | - | - |
| Orleans Cedex 1 (45042) | - | - |
| Orleans Cedex 1 (45043) | - | - |
| Orleans Cedex 1 (45044) | - | - |
| Orleans Cedex 1 (45045) | - | - |
| Orleans Cedex 1 (45046) | - | - |
| Orleans Cedex 1 (45047) | - | - |
| Orleans Cedex 1 (45048) | - | - |
| Orleans Cedex 1 (45049) | - | - |
| Orleans Cedex 1 (45050) | - | - |
| Orleans Cedex 1 (45051) | - | - |
| Orleans Cedex 1 (45052) | - | - |
| Orleans Cedex 1 (45053) | - | - |
| Orleans Cedex 1 (45054) | - | - |
| Orleans Cedex 1 (45055) | - | - |
| Orleans Cedex 1 (45056) | - | - |
| Orleans Cedex 1 (45057) | - | - |
| Orleans Cedex 1 (45058) | - | - |
| Orleans Cedex 1 (45059) | - | - |
| Orleans Cedex 2 (45060) | - | - |
| Orleans Cedex 2 (45061) | - | - |
| Orleans Cedex 2 (45062) | - | - |
| Orleans Cedex 2 (45063) | - | - |
| Orleans Cedex 2 (45064) | - | - |
| Orleans Cedex 2 (45065) | - | - |
| Orleans Cedex 2 (45066) | - | - |
| Orleans Cedex 2 (45067) | - | - |
| Orleans Cedex 2 (45068) | - | - |
| Orleans Cedex 2 (45069) | - | - |
| Orleans Cedex 2 (45070) | - | - |
| Orleans Cedex 2 (45071) | - | - |
| Orleans Cedex 2 (45072) | - | - |
| Orleans Cedex 2 (45073) | - | - |
| Orleans Cedex 2 (45074) | - | - |
| Orleans Cedex 2 (45075) | - | - |
| Orleans Cedex 2 (45076) | - | - |
| Orleans Cedex 2 (45077) | - | - |
| Orleans Cedex 2 (45078) | - | - |
| Orleans Cedex 2 (45079) | - | - |
| Orleans Cedex 2 (45080) | - | - |
| Orleans Cedex 2 (45081) | - | - |
| Orleans Cedex 2 (45082) | - | - |
| Orleans Cedex 2 (45083) | - | - |
| Orleans Cedex 2 (45084) | - | - |
| Orleans Cedex 2 (45085) | - | - |