, the population was 51.9% male and 48.1% female. The population was made up of 540 Swiss men (45.8% of the population) and 72 (6.1%) non-Swiss men. There were 524 Swiss women (44.4%) and 44 (3.7%) non-Swiss women. Of the population in the municipality, 365 or about 31.5% were born in Sonvilier and lived there in 2000. There were 299 or 25.8% who were born in the same canton, while 309 or 26.7% were born somewhere else in Switzerland, and 135 or 11.7% were born outside of Switzerland.