20 Least Educated States in the US

4. Arkansas

Population aged 25 and above with high school or less: 45.1%

Population aged 25 and above with a bachelor’s degree or higher: 25.4%

Pupil-to-Teacher Ratio: 12.6

Expenditure per Pupil: $13,959

Insider Monkey Score: 0.120

Arkansas’ bachelor’s degree attainment level of 15.7% is 7.3 points below the national average. Moreover, only 9.7% of the adults aged 25 and above hold a postgraduate or professional degree, compared to the national average of 14%. On the other hand, 12.7% of those aged between 18 and 24 years have not completed their high school education.