Languages of Switzerland#German

The four national languages of Switzerland are German, French, Italian and Romansh. German, French and Italian maintain equal status as official languages at the national level within the Federal Administration of the Swiss Confederation, while Romansh is used in dealings with people who speak it. In some situations, Latin is used, particularly as a single language to denote the country.

In 2017, the population of Switzerland was 62.6% native speakers of German ; 22.9% French ; 8.2% Italian ; and 0.5% Romansh. The German region is roughly in the east, north and center; the French part in the west and the Italian area in the south. There remains a small Romansh-speaking native population in Graubünden in the east. The cantons of Fribourg, Bern and Valais are officially bilingual; the canton of Graubünden is officially trilingual.

Wikipedia