Postcode areas 02XXX
- Postcode area 02000 Laon
- Postcode area 02100 Saint-Quentin
- Postcode area 02110 Bohain-en-Vermandois
- Postcode area 02120 Guise
- Postcode area 02130 Fère-en-Tardenois
- Postcode area 02140 Vervins
- Postcode area 02150 Sissonne
- Postcode area 02160 Beaurieux
- Postcode area 02170 Le Nouvion-en-Thiérache
- Postcode area 02190 Guignicourt
- Postcode area 02200 Soissons
- Postcode area 02210 Oulchy-le-Château
- Postcode area 02220 Braine
- Postcode area 02230 Fresnoy-le-Grand
- Postcode area 02240 Ribemont
- Postcode area 02250 Marle
- Postcode area 02260 La Capelle
- Postcode area 02270 Crécy-sur-Serre
- Postcode area 02290 Vic-sur-Aisne
- Postcode area 02300 Chauny
- Postcode area 02310 Charly
- Postcode area 02320 Anizy-le-Château
- Postcode area 02330 Condé-en-Brie
- Postcode area 02340 Montcornet
- Postcode area 02350 Liesse-Notre-Dame
- Postcode area 02360 Rozoy-sur-Serre
- Postcode area 02370 Vailly-sur-Aisne
- Postcode area 02380 Coucy-le-Château-Auffrique
- Postcode area 02390 Origny-Sainte-Benoite
- Postcode area 02400 Château-Thierry
- Postcode area 02410 Saint-Gobain
- Postcode area 02420 Bellicourt
- Postcode area 02430 Gauchy
- Postcode area 02440 Montescourt-Lizerolles
- Postcode area 02450 Boué
- Postcode area 02460 La Ferté-Milon
- Postcode area 02470 Neuilly-Saint-Front
- Postcode area 02480 Jussy
- Postcode area 02490 Vermand
- Postcode area 02500 Hirson
- Postcode area 02510 Étreux
- Postcode area 02520 Flavy-le-Martel
- Postcode area 02540 Viels-Maisons
- Postcode area 02550 Origny-en-Thiérache
- Postcode area 02570 Chézy-sur-Marne
- Postcode area 02580 Étréaupont
- Postcode area 02590 Étreillers
- Postcode area 02600 Villers-Cotterêts
- Postcode area 02610 Moÿ-de-l'Aisne
- Postcode area 02620 Buironfosse
- Postcode area 02630 Wassigny
- Postcode area 02640 Saint-Simon
- Postcode area 02650 Crézancy
- Postcode area 02670 Folembray
- Postcode area 02680 Grugies
- Postcode area 02690 Essigny-le-Grand
- Postcode area 02700 Tergnier
- Postcode area 02720 Homblières
- Postcode area 02760 Holnon
- Postcode area 02790 Seraucourt-le-Grand
- Postcode area 02800 La Fère
- Postcode area 02810 Gandelu
- Postcode area 02820 Saint-Erme-Outre-et-Ramecourt
- Postcode area 02830 Saint-Michel
- Postcode area 02840 Athies-sous-Laon
- Postcode area 02850 Trélou-sur-Marne
- Postcode area 02860 Bruyères-et-Montbérault
- Postcode area 02870 Crépy
- Postcode area 02880 Crouy