The figures also show an increase of 142% in the number of minors claiming asylum this September (216) compared with September 2010 (86).
Half the minors claiming asylum in Belgium come from Afghanistan. Around 20% are from Guinea.
The Justice Minister Stefaan De Clerck (Flemish Christian democrat) recently took measures that made it possible for child asylum-seekers to be assigned a guardian.
In the meantime, guardians have been found for 221 youngsters.