 The age distribution of the population () is children and teenagers (0–19 years old) make up 25.7% of the population, while adults (20–64 years old), make up 59.9% and seniors (over 64 years old) make up 14.4%.In Marthalen about 81.3% of the population (between age 25-64) have completed either non-mandatory upper secondary education or additional higher education (either university or a "Fachhochschule").Marthalen has an unemployment rate of 0.87%.