Arrondissements of the Aisne department

The 5 arrondissements of the Aisne department are:
 * 1) Arrondissement of Château-Thierry, (subprefecture: Château-Thierry) with 108 communes. The population of the arrondissement was 71,417 in 2016.
 * 2) Arrondissement of Laon, (prefecture of the Aisne department: Laon) with 240 communes. The population of the arrondissement was 157,371 in 2016.
 * 3) Arrondissement of Saint-Quentin, (subprefecture: Saint-Quentin) with 126 communes.  The population of the arrondissement was 129,028 in 2016.
 * 4) Arrondissement of Soissons, (subprefecture: Soissons) with 164 communes.  The population of the arrondissement was 107,744 in 2016.
 * 5) Arrondissement of Vervins, (subprefecture: Vervins) with 160 communes.  The population of the arrondissement was 72,157 in 2016.

History
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.

The borders of the arrondissements of Aisne were modified in January 2017:
 * 10 communes from the arrondissement of Château-Thierry to the arrondissement of Soissons
 * three communes from the arrondissement of Laon to the arrondissement of Soissons
 * 30 communes from the arrondissement of Laon to the arrondissement of Vervins