In the metropolitan monton there are primary, secondary and special schools for boys and girls, affording instruction to some 10,000 pupils.
It is spoken throughout central Siam, in all parts of southern Siam except Patani Monton, in northern Siam along the river-banks as far up as Utaradit and Raheng, and in eastern Siam as far as the confines of the Korat Monton.