Editing Cergy (section)

==Demographics==
When Cergy was selected to become the center of a "[[new town#France|new town]]", it was only a village. The commune had only 2,895 inhabitants in 1968. It then started to develop very quickly, exceeding 10,000 inhabitants in the mid-1970s and then 20,000 in the early-1980s. It is in this decade that its growth was most spectacular, since the city exceeded 48,000 inhabitants in 1990. The increase continued since, but at a notably slower pace, to reach 54,500 at 2004 estimates. However, in December 2001, the commune lost a portion of its territory (net {{convert|0.03|km2|sqmi|abbr=on}} with a 1999 population of 62 persons) to the adjacent commune of [[Courdimanche]].<ref>{{cite web|url=https://www.legifrance.gouv.fr/jorf/id/JORFTEXT000000771032|title=Décret du 4 décembre 2001 portant modification des limites territoriales de communes et de cantons du département du Val-d'Oise|website=[[Légifrance]]|language=fr}}</ref> The official census figures have thus been revised downward from the 1999 official 54,781 to 54,719, and the land area from {{convert|11.68|km2|sqmi|abbr=on}} to 11.65&nbsp;km<sup>2</sup>.

{{Historical populations
| align = none
| cols = 2
| percentages = pagr
| source = EHESS<ref name=ehess>{{Cassini-Ehess|7488|Cergy}}</ref> and INSEE (1968-2017)<ref name=pophist>[https://www.insee.fr/fr/statistiques/4515315?geo=COM-95127#ancre-POP_T1 Population en historique depuis 1968], INSEE</ref>
| graph-pos = bottom
|1793 |1045
|1800 |1084
|1806 |1069
|1821 |987
|1831 |1016
|1836 |1000
|1841 |970
|1846 |956
|1851 |963
|1856 |922
|1861 |933
|1866 |953
|1872 |926
|1876 |897
|1881 |869
|1886 |889
|1891 |897
|1896 |902
|1901 |885
|1906 |942
|1911 |933
|1921 |963
|1926 |1060
|1931 |1118
|1936 |1106
|1946 |1138
|1954 |1447
|1962 |2455
|1968 |2895
|1975 |8896
|1982 |19357
|1990 |48226
|1999 |54781
|2007 |57600
|2012 |60528
|2017 |65177
}}

===Immigration===
{{France immigration
|collectivity_name=Cergy
|census_year=1999
|metropolitan_France=78.2
|outside_metropolitan_France=21.8
|overseas_France=2.8
|foreign_French=3.4
|EU-15=1.9
|non-EU-15=13.7
}}