Historical population

Year Pop. ±% p.a. 1793 2,273 —     1800 1,259 −8.09% 1806 2,156 +9.38% 1821 2,379 +0.66% 1831 2,626 +0.99% 1841 2,690 +0.24% 1846 2,912 +1.60% 1851 2,899 −0.09% 1856 2,891 −0.06% 1861 2,810 −0.57% 1866 2,897 +0.61% 1872 2,799 −0.57% 1876 2,782 −0.15% 1881 2,932 +1.06% 1886 2,909 −0.16% 1891 2,902 −0.05% 1896 2,751 −1.06% 1901 2,670 −0.60%	Year Pop. ±% p.a. 1906 2,843 +1.26% 1911 2,609 −1.70% 1921 2,586 −0.09% 1926 2,538 −0.37% 1931 2,472 −0.53% 1936 2,635 +1.29% 1946 3,026 +1.39% 1954 3,169 +0.58% 1962 3,287 +0.46% 1968 3,744 +2.19% 1975 6,239 +7.57% 1982 9,664 +6.45% 1990 12,877 +3.65% 1999 15,377 +1.99% 2007 17,956 +1.96% 2012 18,398 +0.49% 2017 19,805 +1.48%
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 headquarters of the geophysical research company Sercel is located in Carquefou

In 2008, the local football team Union Sportive Jeanne d'Arc Carquefou reached the quarter-finals of the French Cup after a win over the 8-times national champions Olympique de Marseille on 19 March, putting the town in the national headlines.

• Communes of the Loire-Atlantique department

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