As hame o Calvin's Reformation, the canton o Geneva haes traditionally been a Protestant Christian stranghauld. Housomeivver, ower the latter pairt o the 20t century the proportion o Catholics (40%) rose, in lairge pairt due tae immigration fre Soothren Europe, an nou they ootnumber Protestants (17%) in the canton. Housomeivver, the canton is still offeecially considered Protestant. The surroondin regions o Fraunce are maistly Roman Catholic.