The 5 arrondissements of the Aisne department are:[1] In 1800 the arrondissements of Laon, Château-Thierry, Saint-Quentin, Soissons and Vervins were established.
The arrondissement of Château-Thierry was disbanded in 1926, and restored in 1942.
[2] The borders of the arrondissements of Aisne were modified in January 2017:[3]