, the gender distribution of the population was 51.1% male and 48.9% female. The population was made up of 256 Swiss citizens (94.8% of the population), and 14 non-Swiss residents (5.2%) Of the population in the municipality 101 or about 37.7% were born in Häfelfingen and lived there in 2000. There were 81 or 30.2% who were born in the same canton, while 53 or 19.8% were born somewhere else in Switzerland, and 31 or 11.6% were born outside of Switzerland.