The number of countries that have their own magical school is minuscule compared to those that do not. This is because the wizarding populations of most countries choose the option of home schooling. Occasionally, too, the magical community in a given country is tiny or far-flung and correspondence courses have been found a more cost-effective means of educating the young.
There are eleven long-established and prestigious wizarding schools worldwide, all of which are registered with the International Confederation of Wizards. Smaller and less well-regulated institutions have come and gone, are difficult to keep track of, and are rarely registered with the appropriate Ministry (in which case, I cannot vouch for the standard of education they might offer). Anyone wishing to know whether there is an approved magical school in their region should address an owl enquiry to the International Confederation of Wizards, Educational Office.
The precise location of each of the following schools is a closely guarded secret. The schools fear not only Muggle persecution, for it is a sad fact that at various times in their long histories, all of these institutions have been buffeted by the effects of wizard wars, and of hostile attention from both the foreign and domestic magical communities (it is not only in Britain that the education of magical youth has been subject to Ministry interference or pressure). As a general rule, magical schools tend to be situated in landlocked, mountainous areas (although there are notable exceptions, as will be seen), as such regions are difficult for Muggles to access, and easier to defend from Dark wizards.