 Over the last 10 years (1997–2007) the population has changed at a rate of 5.1%.Most of the population () speaks German (96.2%), with Albanian being second most common ( 1.8%) and Serbo-Croatian being third ( 0.6%).The age distribution, , in Wölflinswil is; 115 children or 12.7% of the population are between 0 and 9 years old and 110 teenagers or 12.1% are between 10 and 19.