Therefore, High Alemannic must not be confused with the term "Swiss German", which refers to all Alemannic dialects of Switzerland as opposed to Swiss variant of Standard German, the literary language of diglossic German-speaking Switzerland.

In Germany, High Alemannic dialects are spoken in Southern Baden-Württemberg, i.e. the Markgräflerland and in the adjacent area south of Freiburg im Breisgau up to the Black Forest (Schönau).

It is also spoken in the southern Sundgau region beyond the Upper Rhine, which is part of Alsace, France.

In Vorarlberg in Western Austria, a form of High Alemannic is spoken around the Rheintal as well.

High Alemannic is traditionally subdivided in an Eastern and Western language area (Sprachraum), marked by the Brünig-Napf-Reuss line across the cantons of Aargau and Lucerne (Luzern).