The city grew up around Sankt Leodegar Abbey, founded in 840 AD, and remained strongly Roman Catholic into the 21st Century. In 1850, 96.9% of the population was Catholic, in 1900 it was 81.9% and in 1950 it was still 72.3%. In the 2000 census the religious membership of Lucerne was; 35,682 (60%) were Roman Catholic, and 9,227 (15.5%) were Protestant, with an additional 1,979 (3.33%) that were of some other Christian faiths. There are 196 individuals (0.33% of the population) who are Jewish. There are 1,824 individuals (3.07% of the population) who are Muslim. Of the rest; there were 1,073 (1.8%) individuals who belong to another religion, 6,310 (10.61%) who do not belong to any organized religion, 3,205 (5.39%) who did not answer the question
