The 5 arrondissements of the Puy-de-Dôme department are:
Arrondissement of Ambert, (subprefecture: Ambert) with 58 communes. The population of the arrondissement was 27,571 in 2021. Arrondissement of Clermont-Ferrand, (prefecture of the Puy-de-Dôme department: Clermont-Ferrand) with 74 communes. The population of the arrondissement was 362,578 in 2021. Arrondissement of Issoire, (subprefecture: Issoire) with 134 communes. The population of the arrondissement was 78,742 in 2021. Arrondissement of Riom, (subprefecture: Riom) with 155 communes. The population of the arrondissement was 137,149 in 2021. Arrondissement of Thiers, (subprefecture: Thiers) with 44 communes. The population of the arrondissement was 56,245 in 2021.
History
In 1800 the arrondissements of Clermont-Ferrand, Ambert, Issoire, Riom and Thiers were established. The arrondissement of Ambert was disbanded in 1926, and restored in 1942.Historique du Puy-de-Dôme
The borders of the arrondissements of Puy-de-Dôme were modified in January 2017: three communes from the arrondissement of Clermont-Ferrand to the arrondissement of Ambert 21 communes from the arrondissement of Clermont-Ferrand to the arrondissement of Issoire 17 communes from the arrondissement of Clermont-Ferrand to the arrondissement of Riom four communes from the arrondissement of Clermont-Ferrand to the arrondissement of Thiers one commune from the arrondissement of Riom to the arrondissement of Clermont-Ferrand three communes from the arrondissement of Thiers to the arrondissement of Riom
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