Ponthoux (French pronunciation: [pɔ̃tu]) is a former commune in the Jura department in Bourgogne-Franche-Comté in eastern France. On 1 January 2016, it was merged into the commune of Lavans-lès-Saint-Claude.

Historical population

Year Pop. ±% 1793 118 —     1806 134 +13.6% 1821 133 −0.7% 1831 124 −6.8% 1841 127 +2.4% 1851 124 −2.4% 1861 111 −10.5% 1872 100 −9.9% 1881 79 −21.0% 1891 89 +12.7% 1901 98 +10.1% 1911 84 −14.3%

Year Pop. ±% 1921 65 −22.6% 1931 70 +7.7% 1946 54 −22.9% 1954 48 −11.1% 1862 41 −14.6% 1968 33 −19.5% 1975 57 +72.7% 1982 54 −5.3% 1990 56 +3.7% 1999 80 +42.9% 2006 86 +7.5% 2012 83 −3.5%

• Communes of the Jura department