Chazelles-sur-Lyon (French pronunciation: [ʃazɛl syʁ ljɔ̃], literally Chazelles on Lyon) is a commune in the Loire department in central France.

Historical population

Year Pop. ±% p.a. 1793 2,400 —     1800 2,364 −0.22% 1806 3,017 +4.15% 1821 3,071 +0.12% 1831 3,079 +0.03% 1836 2,822 −1.73% 1841 3,011 +1.30% 1846 3,086 +0.49% 1851 3,272 +1.18% 1856 4,011 +4.16% 1861 5,332 +5.86% 1866 5,688 +1.30% 1872 5,870 +0.53% 1876 5,915 +0.19% 1881 6,017 +0.34% 1886 5,567 −1.54% 1891 5,461 −0.38% 1896 5,607 +0.53%	Year Pop. ±% p.a. 1901 5,727 +0.42% 1906 6,090 +1.24% 1911 6,041 −0.16% 1921 5,425 −1.07% 1926 5,774 +1.25% 1931 6,008 +0.80% 1936 6,003 −0.02% 1946 6,108 +0.17% 1954 5,902 −0.43% 1962 5,717 −0.40% 1968 5,546 −0.50% 1975 5,360 −0.49% 1982 5,021 −0.93% 1990 4,895 −0.32% 1999 4,801 −0.22% 2007 5,074 +0.69% 2012 5,137 +0.25% 2017 5,357 +0.84%
Source: EHESS and INSEE (1968-2017)

• Communes of the Loire department