Besides the Christian denominations, there was, beginning in the late 18th century, also a Jewish community in the village. At first, worship was held at a prayer house with a cantor leading, until 1833, when the congregation, small as it still was, built itself a synagogue. About the middle of the 19th century, the Jewish community numbered some 70 members. Thereafter, the number of Jews in Brücken fell, mostly owing to emigration, leading to the dissolution of the hitherto autonomous community, which now joined the bigger Jewish worship community in neighbouring Steinbach am Glan. Among the members of the Jewish community was Isidor Triefus, the founder of the diamond-cutting industry in the village. As early as 1927, the by now long empty synagogue was auctioned off. By 1933 at the onset of the notoriously antisemitic Third Reich, there were ten Jews still living in the village, most of whom emigrated soon afterwards. Only the family Straaß stayed, whose fate was most unfortunate. In 1940, they were deported by the Nazis to Gurs internment camp in Gurs in the southwest of France, whence they were further transported in 1942 to Auschwitz. Only two family members survived the Holocaust. They were brother and sister, Walter and Mildrut (Mildred) who later emigrated to the United States.