Buigny-lès-Gamaches (French pronunciation: [bɥiɲi lɛ ɡamaʃ], literally Buigny near Gamaches; Picard: Boégny-lès-Gamache) is a commune in the Somme department in Hauts-de-France in northern France about 32 kilometres (20 mi) southwest of Abbeville.

Historical population

Year Pop. ±% p.a. 1793 405 —     1800 375 −1.09% 1806 417 +1.79% 1821 468 +0.77% 1831 492 +0.50% 1836 506 +0.56% 1841 512 +0.24% 1846 508 −0.16% 1851 493 −0.60% 1856 486 −0.29% 1861 504 +0.73% 1866 523 +0.74% 1872 498 −0.81% 1876 518 +0.99% 1881 501 −0.67% 1886 513 +0.47% 1891 507 −0.24% 1896 469 −1.55%	Year Pop. ±% p.a. 1901 431 −1.68% 1906 452 +0.96% 1911 450 −0.09% 1921 386 −1.52% 1926 406 +1.02% 1931 419 +0.63% 1936 410 −0.43% 1946 446 +0.85% 1954 453 +0.19% 1962 462 +0.25% 1968 461 −0.04% 1975 471 +0.31% 1982 428 −1.36% 1990 440 +0.35% 1999 403 −0.97% 2007 400 −0.09% 2012 396 −0.20% 2017 414 +0.89%
Source: EHESS and INSEE (1968-2017)

• Communes of the Somme department