Situated on the right bank of the River Seine, it is the second smallest in area after the 2nd arrondissement. The arrondissement contains the northern, quieter part of the medieval district of Le Marais (while the 4th arrondissement contains Le Marais' more lively southern part, notably including the gay district of Paris). The oldest surviving private house of Paris, built in 1407, is to be found in the 3rd arrondissement, in the rue de Montmorency.
With a land area of 1.171 km² (0.452 sq.miles, or 289 acres), the 3rd arrondissement is the second smallest arrondissement in the city.
Demography
The area now occupied by the first arrondissement attained its peak population in the period preceding the re-organization of Paris in 1860. In 1999, the population was 34,248, while the arrondissement hosted a total of 29,723 jobs.
¹This group is made up largely of pieds-noirs from 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.
² An 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.