 The next three most popular parties were the SPS (20.4%), the FDP (17.2%) and the CSP (12.4%).The age distribution of the population () is children and teenagers (0–19 years old) make up 24.5% of the population, while adults (20–64 years old) make up 67.2% and seniors (over 64 years old) make up 8.2%.In Bonstetten about 86.5% of the population (between age 25-64) have completed either non-mandatory upper secondary education or additional higher education (either university or a "Fachhochschule").