In Sweden, 29 of 30 municipalities contained strongly segregated lower secondary schools …

„In Sweden, 29 of 30 municipalities contained strongly segregated lower secondary schools; in 16, segregation appeared to have been largely driven by school choice. Children of foreign-born and/or less educated parents were almost exclusively in municipal schools, while Swedish-born and well-educated parents had opted out of municipal schools, choosing independent schools.“
UNESCO (Hrsg.), Non-state actors in education (2021), S. 49.