According to 2019s The Intelligence of the Nations report, the average IQ in the United States is 97.43. This number was calculated using multiple versions of IQ tests as well as detailed sample data regarding socioeconomic and environmental factors. The average IQ score is between 85 and 115, with scores above or below this indicating above or below average intelligence, respectively. The standard deviation of IQ scores is set at 15, which means that around 68% of people will have an IQ score between 85 and 115.