Nanc-lès-Saint-Amour (French pronunciation: [nɑ̃ lɛ sɛ̃.t‿amuʁ], literally Nanc near Saint-Amour) is a former commune in the Jura department in Bourgogne-Franche-Comté in eastern France. On 1 April 2016, it was merged into the new commune of Les Trois-Châteaux.

Historical population

Year Pop. ±% 1793 361 —     1806 383 +6.1% 1821 369 −3.7% 1831 397 +7.6% 1841 393 −1.0% 1851 399 +1.5% 1861 395 −1.0% 1872 392 −0.8% 1881 425 +8.4% 1891 393 −7.5% 1901 374 −4.8% 1911 382 +2.1%

Year Pop. ±% 1921 337 −11.8% 1931 340 +0.9% 1946 333 −2.1% 1954 286 −14.1% 1962 257 −10.1% 1968 233 −9.3% 1975 224 −3.9% 1982 227 +1.3% 1990 246 +8.4% 1999 261 +6.1% 2006 277 +6.1% 2012 293 +5.8%

• Communes of the Jura department