Coisia (French pronunciation: [kwazja]) is a former commune in the Jura department in Bourgogne-Franche-Comté in eastern France. On 1 January 2017, it was merged into the new commune Thoirette-Coisia.

Historical population

Year Pop. ±% 1793 287 —     1806 334 +16.4% 1821 333 −0.3% 1831 320 −3.9% 1841 286 −10.6% 1851 316 +10.5% 1901 177 −44.0% 1911 150 −15.3% 1921 136 −9.3% 1931 129 −5.1%

Year Pop. ±% 1946 114 −11.6% 1954 86 −24.6% 1962 89 +3.5% 1968 67 −24.7% 1975 83 +23.9% 1982 80 −3.6% 1990 103 +28.8% 1999 122 +18.4% 2006 121 −0.8% 2012 175 +44.6%

• Communes of the Jura department