Inhabitants of Viry-Châtillon are also known as Castelvirois in French.

Historical population

Year Pop. ±% p.a. 1793 408 —     1800 373 −1.27% 1806 380 +0.31% 1821 366 −0.25% 1831 404 +0.99% 1836 389 −0.75% 1841 462 +3.50% 1846 533 +2.90% 1851 550 +0.63% 1856 564 +0.50% 1861 575 +0.39% 1866 663 +2.89% 1872 541 −3.33% 1876 669 +5.45% 1881 873 +5.47% 1886 1,110 +4.92% 1891 1,182 +1.26% 1896 1,409 +3.58%	Year Pop. ±% p.a. 1901 1,540 +1.79% 1906 1,824 +3.44% 1911 2,272 +4.49% 1921 2,766 +1.99% 1926 5,660 +15.40% 1931 8,442 +8.32% 1936 9,234 +1.81% 1946 9,495 +0.28% 1954 10,622 +1.41% 1962 23,598 +10.49% 1968 27,045 +2.30% 1975 32,411 +2.62% 1982 30,224 −0.99% 1990 30,580 +0.15% 1999 30,257 −0.12% 2007 31,249 +0.40% 2012 31,221 −0.02% 2017 31,093 −0.08%
Graphs are unavailable due to technical issues. Updates on reimplementing the Graph extension, which will be known as the Chart extension, can be found on Phabricator and on MediaWiki.org.
Source: EHESS and INSEE (1968-2017)

The town is home to the women's football team Paris FC. It is also the base of the engine division of the Formula One constructor Alpine-Renault from 1977-2026.

Viry-Châtillon is twinned with:

• Erftstadt, Germany
• Wokingham, England, United Kingdom

Viry-Châtillon is served by Viry-Châtillon station on the Paris RER line D.

• Communes of the Essonne department

• Media related to Viry-Châtillon at Wikimedia Commons
• Official website (in French)
• Mayors of Essonne Association (in French)
• Base Mérimée: Search for heritage in the commune, Ministère français de la Culture. (in French)

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