IQ Facts and Figures
International IQ charts place Hong Kong at the top of the IQ world with citizens averaging 107. South Korea, Japan, and Taiwan and Singapore follow. The US ranks 18th. Source
The average IQ in America is 98. New Hampshire residents have the highest IQs, averaging 104, followed by Oregon and Massachusetts at 103. The lower figures reside in Mississippi and South Carolina, where the average IQ is 94.
IQ Score 170
IQ Score 180
IQ Score 156
IQ Score 155
|140 and over||Genius or near genius|
|120-140||Very superior intelligence|
|90-110||Normal or average intelligence|
|Below 70||Definite feeble-mindedness|
Historical IQ's are from a 1926 study by psychologist Dr. Catherine Morris Cox. For more information on how the historical IQ's have been calculated please refer to the Wikipedia article on Catherine Cox Miles.