voiron remains a significant economic and administrative center of the department of isère. voiron has sought to keep its independence from its much larger neighbor, the grenoble conurbation. voiron survived a difficult conversion after the departure of companies rossignol and johnson & johnson. pays voironnais is working to attract new jobs aimed at limiting the dormitory phenomenon already affecting the suburbs of voiron. however, because of the urban sprawl between voreppe and voiron, this town has been considered by the national institute of statistics and economic studies (insee) as belonging to the grenoble-alpes métropole since 2010.