<P> The educational attainment of the U.S. population is similar to that of many other industrialized countries with the vast majority of the population having completed secondary education and a rising number of college graduates that outnumber high school dropouts . As a whole, the population of the United States is spending more years in formal educational programs . As with income, levels differ by race, age, household configuration and geography . </P> <P> Overall, the households and demographics featuring the highest educational attainment in the United States are also among those with the highest household income and wealth . Thus, while the population as a whole is proceeding further in formal educational programs, income and educational attainment remain highly correlated . </P> <Table> Educational attainment in the United States (2014) <Tr> <Th> Education </Th> <Th> Age 25 and over </Th> <Th> Age 25 - 29 </Th> </Tr> <Tr> <Td> High school diploma or GED </Td> <Td> 88.31% </Td> <Td> 90.83% </Td> </Tr> <Tr> <Td> Some college </Td> <Td> 58.57% </Td> <Td> 64.31% </Td> </Tr> <Tr> <Td> Associate and / or bachelor's degree </Td> <Td> 41.89% </Td> <Td> 44.08% </Td> </Tr> <Tr> <Td> Bachelor's degree </Td> <Td> 31.96% </Td> <Td> 34.04% </Td> </Tr> <Tr> <Td> Master's and / or doctorate and / or professional degree </Td> <Td> 11.77% </Td> <Td> 7.57% </Td> </Tr> <Tr> <Td> Doctorate and / or professional degree </Td> <Td> 3.27% </Td> <Td> 1.70% </Td> </Tr> <Tr> <Td> Doctorate </Td> <Td> 1.77% </Td> <Td> 0.89% </Td> </Tr> </Table> <Tr> <Th> Education </Th> <Th> Age 25 and over </Th> <Th> Age 25 - 29 </Th> </Tr>

What percentage of the us population have a college degree