What is the longest town name in France?
Saint-Remy-en-Bouzemont-Saint-Genest-et-Isson (Marne), with 45 characters, hyphens included.
What are the ten longest town names in France?
Saint-Remy-en-Bouzemont-Saint-Genest-et-Isson (45), Beaujeu-Saint-Vallier-Pierrejux-et-Quitteur (43), Saint-Martin-de-Bienfaite-la-Cressonnière (41), La Vacquerie-et-Saint-Martin-de-Castries (40), Montigny-Mornay-Villeneuve-sur-Vingeanne (40), Roche-sur-Linotte-et-Sorans-les-Cordiers (40), Saint-Laurent-les-Bains-Laval-d'Aurelle (39), Bonneville-et-Saint-Avit-de-Fumadières (38), Escueillens-et-Saint-Just-de-Bélengard (38), and Saint-Quentin-la-Motte-Croix-au-Bailly (38).
How is the length counted?
Every character of the official name of the commune (INSEE Official Geographic Code) counts: letters, hyphens, spaces and apostrophes.