, the population was 53.1% male and 46.9% female. The population was made up of 167 Swiss men (51.5% of the population) and 5 (1.5%) non-Swiss men. There were 145 Swiss women (44.8%) and 7 (2.2%) non-Swiss women. Of the population in the municipality, 141 or about 45.0% were born in Le Cerneux-Péquignot and lived there in 2000. There were 99 or 31.6% who were born in the same canton, while 42 or 13.4% were born somewhere else in Switzerland, and 20 or 6.4% were born outside of Switzerland.