During the 2010-11 school year, there were a total of 36 students attending classes in Iseltwald. There was one kindergarten class with a total of 6 students in the municipality. Of the kindergarten students, 33.3% have a different mother language than the classroom language. The municipality had one primary class and 26 students. Of the primary students, 11.5% were permanent or temporary residents of Switzerland (not citizens) and 19.2% have a different mother language than the classroom language. During the same year, there was one lower secondary class with a total of 4 students.