 The population was made up of 399 Swiss citizens (93.0% of the population), and 30 non-Swiss residents (7.0%) Of the population in the municipality 137 or about 38.9% were born in Nenzlingen and lived there in 2000.There were 68 or 19.3% who were born in the same canton, while 104 or 29.5% were born somewhere else in Switzerland, and 20 or 5.7% were born outside of Switzerland.In there was 1 birth to non-Swiss citizens, and 1 death of a Swiss citizen.