Top 5 People with Highest IQ

1. William James Sidis

IQ level: 250 – 300
Nationality: American

2. Terence Tao

IQ level: 225-230
Nationality: Australian

3. Christopher Hirata

IQ level: 225
Nationality: American

4. Kim Ung-Yong

IQ level: 210
Nationality: American, currently South Korean

5. Garry Kasparov

IQ level: 194
Nationality: Russian and formerly a citizen of the Soviet Union