L1 users: 4,490,000 (2012 census). Total users in all countries: 5,724,200.
Bern (Bärndütsch), Zurich, Lucerne, Basel, Obwald, Appenzell, Saint Gallen, Graubuenden-Grisons (Valserisch), Wallis. Most Swiss varieties are High Alemannisch and Highest Alemannisch (several in central Switzerland). Each canton has a separate variety. Only a few of 20–70 varieties are listed as dialects. Reportedly most similar to Schwäbian [swg] in south central Germany. Not inherently intelligible with Standard German [deu].
Varieties have strong social function in maintaining borders of regions, cantons, and villages. They also distinguish between German, Swiss, and Austrian nationalities. 93% of German speakers in Switzerland speak a variety of Swiss German; 66% only use Swiss German and no High German in the home (1990 census). 72% of Switzerland speaks Schwyzerdütsch daily (1990 census). Some in schools and churches. Also use Standard German [deu], the language of instruction in school.
Latin script [Latn].