Postcode areas 45XXX
- Postcode area 45000 Orléans
- Postcode area 45100 Orléans
- Postcode area 45110 Châteauneuf-sur-Loire
- Postcode area 45120 Châlette-sur-Loing
- Postcode area 45130 Meung-sur-Loire
- Postcode area 45140 Saint-Jean-de-la-Ruelle
- Postcode area 45150 Jargeau
- Postcode area 45160 Olivet
- Postcode area 45170 Neuville-aux-Bois
- Postcode area 45190 Beaugency
- Postcode area 45200 Montargis
- Postcode area 45210 Ferrières-en-Gâtinais
- Postcode area 45220 Château-Renard
- Postcode area 45230 Châtillon-Coligny
- Postcode area 45240 La Ferté Saint-Aubin
- Postcode area 45250 Briare
- Postcode area 45260 Lorris
- Postcode area 45270 Bellegarde
- Postcode area 45290 Nogent-sur-Vernisson
- Postcode area 45300 Pithiviers
- Postcode area 45310 Patay
- Postcode area 45320 Courtenay
- Postcode area 45330 Malesherbes
- Postcode area 45340 Beaune-la-Rolande
- Postcode area 45360 Châtillon-sur-Loire
- Postcode area 45370 Cléry-Saint-André
- Postcode area 45380 La Chapelle Saint-Mesmin
- Postcode area 45390 Puiseaux
- Postcode area 45400 Fleury-les-Aubrais
- Postcode area 45410 Artenay
- Postcode area 45420 Bonny-sur-Loire
- Postcode area 45430 Chécy
- Postcode area 45450 Fay-aux-Loges
- Postcode area 45460 Les Bordes
- Postcode area 45470 Traînou
- Postcode area 45480 Outarville
- Postcode area 45490 Corbeilles
- Postcode area 45500 Gien
- Postcode area 45510 Tigy
- Postcode area 45520 Chevilly
- Postcode area 45530 Vitry-aux-Loges
- Postcode area 45550 Saint-Denis-de-l'Hôtel
- Postcode area 45560 Saint-Denis-en-Val
- Postcode area 45570 Ouzouer-sur-Loire
- Postcode area 45590 Saint-Cyr-en-Val
- Postcode area 45600 Sully-sur-Loire
- Postcode area 45620 Cerdon
- Postcode area 45630 Beaulieu-sur-Loire
- Postcode area 45640 Sandillon
- Postcode area 45650 Saint-Jean-le-Blanc
- Postcode area 45680 Dordives
- Postcode area 45700 Villemandeur
- Postcode area 45720 Coullons
- Postcode area 45730 Saint-Benoît-sur-Loire
- Postcode area 45740 Lailly-en-Val
- Postcode area 45750 Saint-Pryvé-Saint-Mesmin
- Postcode area 45760 Boigny-sur-Bionne
- Postcode area 45770 Saran
- Postcode area 45800 Saint-Jean-de-Braye