| Homblieres (02720) | - | - |
| Homblieres (02720) | - | - |
| Houry (02140) | - | - |
| Housset (02250) | - | - |
| Iron (02510) | - | - |
| Itancourt (02240) | - | - |
| Iviers (02360) | - | - |
| Jaulgonne (02850) | - | - |
| Jaulgonne (02850) | - | - |
| Jeancourt (02490) | - | - |
| Jeantes (02140) | - | - |
| Joncourt (02420) | - | - |
| Jouaignes (02220) | - | - |
| Jouy (02370) | - | - |
| Jumencourt (02380) | - | - |
| Jumigny (02160) | - | - |
| Jussy (02480) | - | - |
| Jussy (02480) | - | - |
| Juvigny (02880) | - | - |
| Juvincourt Et Damary (02190) | - | - |
| L'epine Aux Bois (02540) | - | - |
| La Bouteille (02140) | - | - |
| La Capelle (02260) | - | - |
| La Capelle (02260) | - | - |
| La Chapelle Monthodon (02330) | - | - |
| La Chapelle Sur Chezy (02570) | - | - |
| La Croix Sur Ourcq (02210) | - | - |
| La Fere (02800) | - | - |
| La Fere (02800) | - | - |
| La Ferte Chevresis (02270) | - | - |
| La Ferte Milon (02460) | - | - |
| La Ferte Milon (02460) | - | - |
| La Flamengrie (02260) | - | - |
| La Herie (02500) | - | - |
| La Malmaison (02190) | - | - |
| La Neuville Bosmont (02250) | - | - |
| La Neuville En Beine (02300) | - | - |
| La Neuville Housset (02250) | - | - |
| La Neuville Les Dorengt (02450) | - | - |
| La Selve (02150) | - | - |
| La Vallee Au Ble (02140) | - | - |
| La Vallee Mulatre (02110) | - | - |
| La Ville Aux Bois Les Diz (02340) | - | - |
| La Ville Aux Bois Les Pon (02160) | - | - |
| Laffaux (02880) | - | - |
| Laigny (02140) | - | - |
| Lanchy (02590) | - | - |
| Landifay Et Bertaignemont (02120) | - | - |
| Landouzy La Cour (02140) | - | - |
| Landouzy La Ville (02140) | - | - |
| Landricourt (02380) | - | - |
| Laniscourt (02000) | - | - |
| Laon (02000) | - | - |
| Laon (02000) | - | - |
| Laon Cedex (02001) | - | - |
| Laon Cedex (02002) | - | - |
| Laon Cedex (02003) | - | - |
| Laon Cedex (02004) | - | - |
| Laon Cedex (02005) | - | - |
| Laon Cedex (02006) | - | - |
| Laon Cedex (02007) | - | - |
| Laon Cedex (02008) | - | - |
| Laon Cedex (02009) | - | - |
| Laon Cedex (02010) | - | - |
| Laon Cedex (02011) | - | - |
| Laon Cedex (02012) | - | - |
| Laon Cedex (02013) | - | - |
| Laon Cedex (02014) | - | - |
| Laon Cedex (02015) | - | - |
| Laon Cedex (02017) | - | - |
| Laon Cedex (02018) | - | - |
| Laon Cedex (02019) | - | - |
| Lappion (02150) | - | - |
| Largny Sur Automne (02600) | - | - |
| Latilly (02210) | - | - |
| Launoy (02210) | - | - |
| Laval En Laonnois (02860) | - | - |
| Lavaqueresse (02450) | - | - |
| Laversine (02600) | - | - |
| Le Catelet (02660) | - | - |
| Le Catelet (02420) | - | - |
| Le Charmel (02850) | - | - |
| Le Haucourt (02420) | - | - |
| Le Herie La Vieville (02120) | - | - |
| Le Nouvion En Thierache (02170) | - | - |
| Le Nouvion En Thierache (02170) | - | - |
| Le Plessier Huleu (02210) | - | - |
| Le Sart (02450) | - | - |
| Le Sourd (02140) | - | - |
| Le Thuel (02340) | - | - |
| Le Verguier (02490) | - | - |
| Leme (02140) | - | - |
| Lempire (02420) | - | - |
| Lerzy (02260) | - | - |
| Les Autels (02360) | - | - |
| Leschelles (02170) | - | - |
| Lesdins (02780) | - | - |
| Lesdins (02100) | - | - |
| Lesges (02220) | - | - |
| Lesquielles St Germain (02120) | - | - |