No, it's not. You're getting Switzerland mixed up with Geneva.
Switzerland is 41% Roman Catholic and 39% Protestant.
However, Geneva is predominantly Protestant.
Canton of Geneva / Practical information: Area : 282 km2 Geneva, Switzerland
Population : 389'910
Capital : Geneva
Language : French
Predominant religion : Protestant
From the wikipedia:
"While Geneva was historically considered a Protestant city, there are over twice as many Roman Catholics (39.5%) as Protestants (17.4%) living in the Canton. 22% of the inhabitants claim no religion. Some did not respond, and the remaining practice Islam (4.4%), Judaism (1.1%), or other religions."