 Over the last 10 years (1997–2007) the population has changed at a rate of 13.8%.Most of the population () speaks German (91.3%), with Italian being second most common (2.5%) and Albanian being third (1.8%).The age distribution, , in Hornussen is; 79 children or 8.9% of the population are between 0 and 9 years old and 111 teenagers or 12.5% are between 10 and 19.