
German is (co-)official language (de jure or de facto) and first language of the majority of the population
German is co-official language, but not the first language of the majority of the population
Squares: German (or its variations) is a legally recognized minority language; Solid: Statutory national or cultural language
German (or its variations) is spoken by a sizable minority (>50,000), but has no legal recognition
By 37ophiuchi [CC BY-SA 4.0], via Wikimedia Commons