The main campus is located in Orsay (48.699890°N 2.173309°E). This university is a member of the UniverSud Paris.
Paris-Sud is one of the largest and most renowned French universities, particularly in science and mathematics. Paris-Sud is ranked 1st in France, 6th in Europe and 37th worldwide in the Academic Ranking of World Universities (ARWU). Furthermore, in this latest edition of ARWU ranking, the university is ranked 15th globally in the field of Natural Sciences and Mathematics; in the five general subject rankings, the university is ranked 7th in mathematics and 19th in physics.