The rise of the high school movement in the beginning of the 20th century was unique in the United States, such that, high schools were implemented with property-tax funded tuition, openness, non-exclusivity, and were decentralized.
The academic curriculum was designed to provide the students with a terminal degree. The students obtained general knowledge (such as mathematics, chemistry, English composition, etc.) applicable to the high geographic and social mobility in the United States. The provision of the high schools accelerated with the rise of the second industrial revolution. The increase in white collar and skilled blue-collar work in manufacturing was reflected in the demand for high school education.
In the 21st century, the educational attainment of the US 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 becoming increasingly more educated. Post-secondary education is valued very highly by American society and is one of the main determinants of class and status. As with income, however, there are significant discrepancies in terms of race, age, household configuration and geography. 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 of the US is becoming increasingly educated on all levels, a direct link between income and educational attainment remains.
In 2007, Americans stood second only to Canada in the percentage of 35 to 64 year olds holding at least two-year degrees. Among 25 to 34 year olds, the country stands tenth. The nation stands 15 out of 29 rated nations for college completion rates, slightly above Mexico and Turkey.
The U.S. Department of Education’s 2003 statistics suggest that 14% of the population – or 32 million adults – have very low literacy skills.
A five-year, $14 million study of U.S. adult literacy involving lengthy interviews of U.S. adults, the most comprehensive study of literacy ever commissioned by the U.S. government, was released in September 1993. It involved lengthy interviews of over 26,700 adults statistically balanced for age, gender, ethnicity, education level, and location (urban, suburban, or rural) in 12 states across the U.S. and was designed to represent the U.S. population as a whole. This government study showed that 21% to 23% of adult Americans were not "able to locate information in text", could not "make low-level inferences using printed materials", and were unable to "integrate easily identifiable pieces of information."
According to a 2003 study by the US government, around 23% of Americans in California lack basic prose literacy skills.