 Most of the population () speaks German (98.7%), with English being second most common ( 0.5%) and Serbo-Croatian being third ( 0.3%).Of the Swiss national languages (), 932 speak German, 1 person speaks, Italian,

The age distribution, , in Hemberg is; 146 children or 15.5% of the population are between 0 and 9 years old and 187 teenagers or 19.8% are between 10 and 19.Of the adult population, 90 people or 9.5% of the population are between 20 and 29 years old.