Of the population in the municipality, 92 or about 27.8% were born in Zielebach and lived there in 2000. There were 109 or 32.9% who were born in the same canton, while 102 or 30.8% were born somewhere else in Switzerland, and 20 or 6.0% were born outside of Switzerland.
The data highlights the demographic makeup of the municipality, specifically focusing on birthplace and residence in 2000. It reveals that a significant portion of the population was born within Zielebach, with a substantial percentage also being born within the same canton.  Furthermore, there is a notable number of individuals who were born outside of Switzerland.