Allier is divided into the arrondissements of Moulins, Gannat, Lapalisse and Montlugon (29 cantons, 321 communes).
It forms the diocese of Moulins and part of the ecclesiastical province of Bourges, and falls within the academie (educational division) of Clermont-Ferrand and the region of the XIII.
Moulins, the capital, Montlugon and Vichy, are the principal towns.
The edict of Moulins (1566) maintained it, as one of the exceptions to the inalienability of the crown-lands; only it was then decided that daughters of France should be appanaged in money, or that if, in default of coin, lands were assigned to them, these lands should be redeemable by the crown in perpetuity.
From her establishments at Moulins and Chantelle in the Bourbonnais she continued henceforth vigorously to defend the Bourbon cause against the royal family.