Préchacq-les-Bains (French pronunciation: [pʁeʃak le bɛ̃]; Occitan: Preishac) is a commune in the Landes department in Nouvelle-Aquitaine in southwestern France.

Historical population

Year Pop. ±% p.a. 1793 411 —     1800 458 +1.56% 1806 491 +1.17% 1821 555 +0.82% 1831 604 +0.85% 1836 583 −0.71% 1841 584 +0.03% 1846 616 +1.07% 1851 635 +0.61% 1856 717 +2.46% 1861 660 −1.64% 1866 654 −0.18% 1872 635 −0.49% 1876 682 +1.80% 1881 712 +0.86% 1886 721 +0.25% 1891 718 −0.08% 1896 655 −1.82%	Year Pop. ±% p.a. 1901 648 −0.21% 1906 630 −0.56% 1911 589 −1.34% 1921 527 −1.11% 1926 530 +0.11% 1931 533 +0.11% 1936 516 −0.65% 1946 502 −0.27% 1954 501 −0.02% 1962 465 −0.93% 1968 471 +0.21% 1975 452 −0.59% 1982 428 −0.78% 1990 462 +0.96% 1999 462 +0.00% 2007 583 +2.95% 2012 682 +3.19% 2017 733 +1.45%
Source: EHESS and INSEE (1968–2017)

• Communes of the Landes department