1. General information

Rosny-sous-Bois is a french commune located in the department of Seine-Saint-Denis in Île-de-France region. Its inhabitants are called Rosnéens and Rosnéennes. In 2016, the commune  was integrated to the newly created Metropolis of Greater Paris (Métropole du Grand Paris).

Population: 44 448 inhabitants (2014)

Location: France

Official Website

Twinned with: Übach-Palenberg (Germany) since 1990; Yanzhou (China) and  Cotonou (Benin) since  2006.

Local security contract signed in 2003

2. The City in our Network

The city and Efus

Member since: 2017


  • 1st European conference LIAISE 2 “European cities facing radicalisation: communication and counter-narratives”, Bordeaux, 26-27 May 2016

The City and the National Forum (FFSU)

Member since: 2017


  • Tailor-made programme of training sessions on the prevention of radicalisation leading to violent extremism.


  • General Assembly FFSU, Paris 30 June 2017