In 1995 the day school had 323 students, including 252 in elementary school and 71 in junior high school. Of the total number of students, 146 were males and 177 were females. In 1998 there were 276 students. In 2005 the school had 320 day students; two of them were Americans learning Japanese while the remainder were Japanese. In 2008 the school had 399 students; this was its peak enrollment. In 2013 the day school had 295 students and the Saturday school had 279 students in 2021. That year the Japanese ambassador to Belgium described the enrollment as having "decreased considerably"."Belgian Educational Circumstances for Japanese Children (No.7)" (Archive). Embassy of Japan in Belgium (在ベルギー日本国大使館). February 1, 2013. Retrieved on January 11, 2015.
