Arrondissement of Riom

Riom
Location within the region Auvergne-Rhône-Alpes
CountryFrance
RegionAuvergne-Rhône-Alpes
DepartmentPuy-de-Dôme
No. of communes155
SubprefectureRiom
Area
2,705.3 km2 (1,044.5 sq mi)
Population
 (2023)
138,294
 • Density51.120/km2 (132.40/sq mi)
INSEE code634

The arrondissement of Riom is an arrondissement of France in the Puy-de-Dôme department in the Auvergne-Rhône-Alpes region. It has 155 communes. Its population is 137,149 (2021), and its area is 2,705.3 km2 (1,044.5 sq mi).