Tschlin had a population (as of 2011) of 442. , 6.3% of the population was made up of foreign nationals. , the gender distribution of the population was 49.6% male and 50.4% female. The age distribution, , in Tschlin is; 39 children or 9.9% of the population are between 0 and 9 years old. 27 teenagers or 6.9% are 10 to 14, and 14 teenagers or 3.6% are 15 to 19. Of the adult population, 42 people or 10.7% of the population are between 20 and 29 years old. 59 people or 15.1% are 30 to 39, 54 people or 13.8% are 40 to 49, and 48 people or 12.2% are 50 to 59. The senior population distribution is 37 people or 9.4% of the population are between 60 and 69 years old, 55 people or 14.0% are 70 to 79, there are 16 people or 4.1% who are 80 to 89, and there are 1 people or 0.3% who are 90 to 99. In the
2007 federal election the most popular party was the
SVP which received 48.9% of the vote. The next three most popular parties were the
SPS (20.8%), the
FDP (14.3%) and the
CVP (13.6%). ==Languages==