 In Grabs about 70.5% of the population (between age 25-64) have completed either non-mandatory upper secondary education or additional higher education (either university or a "Fachhochschule").Out of the total population in Grabs, , the highest education level completed by 1,424 people (22.6% of the population) was Primary, while 2,206 (35.0%) have completed Secondary, 701 (11.1%) have attended a Tertiary school, and 290 (4.6%) are not in school.The remainder did not answer this question.