La Tronche (French pronunciation: [la tʁɔ̃ʃ]) is a commune in the Isère department, Southeastern France. It is part of the Grenoble urban unit (agglomeration).

The Centre Hospitalier Universitaire Grenoble Alpes is the main hospital of the French Alps.

The French archaeologist and hellenist Henri Metzger (1912–2007) was born in La Tronche. Also hailing from the town are the Members of Parliament Camille Galliard-Minier and Alexandre Portier.

Historical population

Year Pop. ±% p.a. 1793 997 —     1800 1,164 +2.24% 1806 1,095 −1.01% 1821 1,109 +0.08% 1831 1,372 +2.15% 1836 1,519 +2.06% 1841 1,537 +0.24% 1846 1,631 +1.19% 1851 1,722 +1.09% 1856 1,704 −0.21% 1861 1,728 +0.28% 1866 1,980 +2.76% 1872 2,131 +1.23% 1876 2,288 +1.79% 1881 2,385 +0.83% 1886 2,446 +0.51% 1891 2,428 −0.15% 1896 2,754 +2.55%	Year Pop. ±% p.a. 1901 2,887 +0.95% 1906 2,857 −0.21% 1911 2,922 +0.45% 1921 3,461 +1.71% 1926 4,200 +3.95% 1931 5,572 +5.82% 1936 5,602 +0.11% 1946 5,364 −0.43% 1954 6,320 +2.07% 1962 7,517 +2.19% 1968 7,993 +1.03% 1975 7,410 −1.08% 1982 6,690 −1.45% 1990 6,454 −0.45% 1999 6,433 −0.04% 2007 6,079 −0.71% 2012 6,627 +1.74% 2017 6,596 −0.09%
Source: EHESS and INSEE (1968-2017)

• Communes of the Isère department