 The see had its borders changed in 1924 and became the diocese of Lausanne, Geneva and Fribourg


According to Büchi (see bibliography) and the "Dictionnaire géographique de la Suisse" (Neuchâtel, 1905), III, 49 sqq., the diocese numbered approximately 434,049 Protestants and 232,056 Catholics; consequently, the latter formed somewhat more than one-third of the whole population of the bishopric.The Catholics inhabit principally the Canton of Fribourg (excepting the Lake District) and the country parishes transferred to Geneva in 1515, four communes in the Canton of Neuchâtel, and ten in the Canton of Vaud.The Catholic population in the Cantons of Fribourg and Geneva consisted principally of farmers, in both of the other cantons it is also recruited from the labouring classes.