Strasbourg-Ortenau is a Franco-German eurodistrict, a cross-border administrative entity (groupement européen de coopération transfrontalière) sharing common institutions, established on 17 October 2005 and definitely functional since 4 February 2010. The district is formed by the Urban Community of Strasbourg (centred on the city of Strasbourg) and 3 other urban communities (of Rhinau, Erstein and Benfeld) on the French side of the Rhine and the Ortenau district (including Achern, Kehl, Lahr, Oberkirch and Offenburg) on the German side. The population of the district was 915,000 in 2014. It covers an area of 2,368 km².