In the name Roissy-en-France, 'France' refers not to the country of France but to an area (pays) of the historical province of Île-de-France.

Pays de France is now almost entirely built up and is covered by the northern suburbs of Paris.

Roissy-en-France is not served by Paris Métro, RER, or suburban rail network.

Blue Line, a charter passenger airline, had its head office in Building B of Paris Nord 2, Parc des Lumières in Roissy-en-France.

[4] Air France's head office is located in the Roissypôle complex on the grounds of Charles de Gaulle Airport and in Tremblay-en-France,[5][6][7] near Roissy-en-France.