Roanne is a French commune located in the Loire department , in the Auvergne-Rhône-Alpes region. It is also the third commune of the department in number of inhabitants after Saint-Étienne and Saint-Chamond . It is with Montbrison , one of the two sub-prefectures of the Loire department. Country France Region Auvergne-Rhône-Alpes Department Loire Canton Roanne-1 and 2 Government  Mayor (2020–2026) Yves Nicolin Area1 16.12 km2 (6.22 sq mi) Population (2017-01-01) 34,366 Time zone UTC+01:00 (CET)  Summer (DST) UTC+02:00 (CEST) Geographic location  In […]