Epidemiology for Savant Syndrome

According to Treffert:
One in ten autistic people have savant skills.

50% of savants are autistic; the other 50% often have psychological disorders or mental illnesses.

Prodigious savants have very little disability.

A 2009 British study of 137 parents with autistic children found that 28% believed their offspring met the criteria for a savant skill, that is, a skill or power "at a level that would be unusual even for normal people".