In 1800 the arrondissements of Strasbourg, Barr, Saverne and Wissembourg were established. In 1806 Sélestat replaced Barr as subprefecture. In 1871 the department was
ceded to Germany. In 1919 the department of Bas-Rhin was restored, with the arrondissements of Strasbourg-Ville, Strasbourg-Campagne, Erstein, Haguenau, Molsheim, Saverne, Sélestat and Wissembourg. In 1974 the arrondissements of Erstein and Sélestat were merged into the new arrondissement of Sélestat-Erstein.[4]
The borders of the arrondissements of Bas-Rhin were modified in January 2015:[5]
all 56 communes of the former
arrondissement of Haguenau to the new arrondissement of Haguenau-Wissembourg
two communes from the arrondissement of Saverne to the new arrondissement of Haguenau-Wissembourg
seven communes from the arrondissement of Saverne to the arrondissement of Molsheim