In the Middle Ages the name Sartrouville was recorded in Medieval Latin as Sartoris Villa. The origin and meaning of Sartoris Villa is still debated. Some think the name comes from the RomanpatronymSaturus (probably a Gallo-Roman landowner) and means "estate (villa) of Saturus". Others believe that the word sartoris comes from the Medieval Latinpast participleexsartum ("cleared for cultivation"), from Latinsartum ("hoed"), and means "estate of the land-clearers", probably in reference to the deforestation that took place around Sartrouville in Antiquity or in the Early Middle Ages to enable the cultivation of the land.
¹This group is made up largely of former French settlers, such as pieds-noirs in Northwest Africa, followed by former colonial citizens who had French citizenship at birth (such as was often the case for the native elite in French colonies), and to a lesser extent foreign-born children of French expatriates. Note that a foreign country is understood as a country not part of France as of 1999, so a person born for example in 1950 in Algeria, when Algeria was an integral part of France, is nonetheless listed as a person born in a foreign country in French statistics.
²An immigrant is a person born in a foreign country not having French citizenship at birth. Note that an immigrant may have acquired French citizenship since moving to France, but is still considered an immigrant in French statistics. On the other hand, persons born in France with foreign citizenship (the children of immigrants) are not listed as immigrants.