non-Swiss men. There were 454 Swiss women (46.4%) and 16 (1.6%) non-Swiss women. Of the population in the municipality, 521 or about 47.4% were born in Trachselwald and lived there in 2000. There were 436 or 39.6% who were born in the same canton, while 91 or 8.3% were born somewhere else in Switzerland, and 26 or 2.4% were born outside of Switzerland.

As of 2012, children and teenagers (0-19 years old) make up 23.3% of the population, while adults (20-64 years old) make up 58.6% and seniors (over 64 years old) make up 18.1%.