Like for other cities like Guiscriff, Plogoff or the surnames Le Hénaff, Heussaff or Gourcuff, the digraph -ff was introduced by Middle Ages' authors to indicate a nasalized vowel.

Historical population

Year Pop. ±% p.a. 1793 1,191 —     1800 1,101 −1.12% 1806 1,249 +2.12% 1821 1,143 −0.59% 1831 1,362 +1.77% 1836 1,358 −0.06% 1841 1,300 −0.87% 1846 1,440 +2.07% 1851 1,448 +0.11% 1856 1,290 −2.28% 1861 1,275 −0.23% 1866 1,578 +4.36% 1872 1,257 −3.72% 1876 1,286 +0.57% 1881 1,382 +1.45% 1886 1,430 +0.69% 1891 1,490 +0.83% 1896 1,554 +0.84%	Year Pop. ±% p.a. 1901 1,520 −0.44% 1906 1,530 +0.13% 1911 1,596 +0.85% 1921 1,623 +0.17% 1926 1,636 +0.16% 1931 1,545 −1.14% 1936 1,406 −1.87% 1946 1,190 −1.65% 1954 1,049 −1.56% 1962 957 −1.14% 1968 842 −2.11% 1975 741 −1.81% 1982 695 −0.91% 1990 679 −0.29% 1999 689 +0.16% 2008 693 +0.06% 2019 629 −0.88%
Graphs are unavailable due to technical issues. Updates on reimplementing the Graph extension, which will be known as the Chart extension, can be found on Phabricator and on MediaWiki.org.
Source: EHESS and INSEE (1968-2019)

Inhabitants of Plélauff are called plélauffiens in French.

• Communes of the Côtes-d'Armor department

Wikimedia Commons has media related to Plélauff.

• Base Mérimée: Search for heritage in the commune, Ministère français de la Culture. (in French)

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