The highest IQ was 228, according to Guinness Book of Records, this score belongs to the âsmartest' person in the world Marilyn vos Savant who scored it when she was 10 year old. This would, according to recent research, correspond to about IQ 185 at adult age.
The rest of the states on the list each have a white population of more than 90%. As for states with the smallest percentage of whites, Hawaii, Mississippi, Louisiana, Maryland, and Georgia comprise the top five. Here are the 10 states with the highest percentage of whites: Maine; Vermont; New Hampshire; West Virginia; Iowa; Wyoming; Idaho; Montana; Kentucky; North Dakota (Click for a list of 50 bizarre state laws.)
Maine's population is 96.9 percent Caucasian, VermontÂ´s is 96.7 and New HampshireÂ´s is 96 percent.. The weighted average for all 50 states is 78.8 percent, meaning that 21.2 percent of the United States is of different descendancy. According to the same census, the states that had the lowest percentage of Caucasian population in comparison to the rest of the population are: Hawaii; Mississippi; Louisiana; Maryland; Georgia