[2] Its population is 152,789 (2021), and its area is 2,489.7 km2 (961.3 sq mi).

[3] The 150 communes of the arrondissement of Nyons, and their INSEE codes, are:[2] The arrondissement of Nyons was created in 1800.

[4] In 2006 it absorbed the four cantons of Dieulefit, Marsanne, Montélimar-1 and Montélimar-2 from the arrondissement of Valence.

[6] As a result of the reorganisation of the cantons of France which came into effect in 2015, the borders of the cantons are no longer related to the borders of the arrondissements.

The eleven cantons of the arrondissement of Nyons were, as of January 2015:[7]