Pratz (French pronunciation: [pʁa]) is a former commune in the Jura department in Bourgogne-Franche-Comté in eastern France. On 1 January 2019, it was merged into the commune Lavans-lès-Saint-Claude.

Historical population

Year Pop. ±% 1793 331 —     1806 275 −16.9% 1821 262 −4.7% 1831 474 +80.9% 1841 460 −3.0% 1851 455 −1.1% 1861 280 −38.5% 1872 327 +16.8% 1881 302 −7.6% 1891 325 +7.6% 1901 314 −3.4% 1911 298 −5.1%

Year Pop. ±% 1921 299 +0.3% 1931 291 −2.7% 1946 219 −24.7% 1954 179 −18.3% 1962 191 +6.7% 1968 211 +10.5% 1975 238 +12.8% 1982 354 +48.7% 1990 415 +17.2% 1999 453 +9.2% 2006 569 +25.6% 2012 568 −0.2%

• Communes of the Jura department