 In Oberwil about 3,810 or (40.7%) of the population have completed non-mandatory upper secondary education, and 1,984 or (21.2%) have completed additional higher education (either university or a "Fachhochschule").Of the 1,984 who completed tertiary schooling, 56.1% were Swiss men, 26.2% were Swiss women, 10.2% were non-Swiss men and 7.5% were non-Swiss women., there were 765 students in Oberwil who came from another municipality, while 346 residents attended schools outside the municipality.