Most of the population ( as of 2000 ) speaks German ( 91.9 % ) , with Albanian being second most common ( 1.8 % ) .
Serbo - Croatian being third ( 1.5 % ) .
Most of the population ( as of 2000 ) speaks German ( 91.9 % ) , with Albanian being second most common ( 1.8 % ) and Serbo - Croatian being third ( 1.5 % ) .