Arrondissements of the Pas-de-Calais department

The 7 arrondissements of the Pas-de-Calais department are:[1] In 1800 the arrondissements of Arras, Béthune, Boulogne, Montreuil and Saint-Omer were established.

The arrondissement of Saint-Pol was created in 1801, and disbanded in 1926.

[2] In 1962 the arrondissement of Calais was created from part of the arrondissement of Boulogne-sur-Mer, and the arrondissement of Lens from part of the arrondissement of Béthune.

[2][3] In January 2007 the arrondissement of Arras lost the canton of Le Parcq to the arrondissement of Montreuil, and the two cantons of Avion and Rouvroy to the arrondissement of Lens.

[2] The borders of the arrondissements of Pas-de-Calais were modified in January 2017:[4]