 The population was made up of 1,416 Swiss citizens (91.7% of the population), and 128 non-Swiss residents (8.3%) Of the population in the municipality 491 or about 36.4% were born in Ziefen and lived there in 2000.There were 364 or 27.0% who were born in the same canton, while 327 or 24.2% were born somewhere else in Switzerland, and 131 or 9.7% were born outside of Switzerland.In there were 12 live births to Swiss citizens and 1 birth to non-Swiss citizens, and in same time span there were 10 deaths of Swiss citizens.