The 4 arrondissements of the Alpes-de-Haute-Provence department are: [1]
In 1800 the arrondissements of Digne, Barcelonnette, Castellane, Forcalquier and Sisteron were established. The arrondissements of Castellane and Sisteron were disbanded in 1926. The arrondissement of Castellane was restored in 1942. [2]
The borders of the arrondissements of Alpes-de-Haute-Provence were modified in January 2017: [3]