学歴
Educational attainment among the population aged 25 and above varied rather slightly with geography region. The population of the Northeastern United States, which had the smallest population of any region with thirty-six million residents, had the highest percentage of high-school and college graduates. The western United States had the highest percentage of those with some college or an associate degree and ranked second for college graduates. The South which had by far the largest population with roughly sixty-six million people had the lowest educational attainment at every level.