Most of the population ( as of 2000 ) speaks German ( 94.1 % ) , with English being second most common ( 1.4 % ) .
Portuguese being third ( 1.0 % ) .
Most of the population ( as of 2000 ) speaks German ( 94.1 % ) , with English being second most common ( 1.4 % ) and Portuguese being third ( 1.0 % ) .