France is divided into 577 constituencies (circonscriptions) for the election of deputies to the lower legislative House, the National Assembly (539 in Metropolitan France, 27 in the overseas departments and territories, and 11 for French residents overseas). Deputies are elected in a two round system to a term fixed to a maximum of five years.
In 2010, a new set of constituency boundaries was adopted, with the dual purpose of ensuring a more equal number of voters per constituency, and of providing seats in the National Assembly to French citizens resident overseas. Thirty-three constituencies were abolished, and thirty-three new ones created. Of the latter, nineteen were in France, while the rest of the world was divided into eleven constituencies for French residents overseas. These constituencies were the ones contested in the June 2012 legislative election.