 Most of the population () speaks German (87.8%), with Serbo-Croatian being second most common ( 2.8%) and Albanian being third ( 2.5%).Of the Swiss national languages (), 7,448 speak German, 31 people speak French, 170 people speak Italian, and 8 people speak Romansh.The age distribution, , in Wittenbach is; 952 children or 11.2% of the population are between 0 and 9 years old and 1,155 teenagers or 13.6% are between 10 and 19.