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Demographics

About 92% of the population spoke German as their first language. The only minority language with a significant number of speakers (5.4%) was Polish (a figure that rises to over 6% when including the related Kashubian and Masurian languages).

The non-German Germanic languages (0.5%), like Danish, Dutch and Frisian, were located in the north and northwest of the empire, near the borders with Denmark, the Netherlands, Belgium, and Luxembourg. Low German was spoken throughout northern Germany and, though linguistically as distinct from High German (Hochdeutsch) as from Dutch and English, was considered "German", hence also its name. Danish and Frisian were spoken predominantly in the north of the Prussian province of Schleswig-Holstein and Dutch in the western border areas of Prussia (Hanover, Westphalia, and the Rhine Province).

Polish and other West Slavic languages (6.28%) were spoken chiefly in the east.

A few (0.5%) spoke French, the vast majority of these in the Reichsland Elsass-Lothringen where francophones formed 11.6% of the total population.