Report Highlights On average, 79% of U.S. adults nationwide are literate in . 21% of adults in the US are illiterate in . 54% of adults have a literacy below a 6th-grade level (20% are below 5th-grade level). Low levels of literacy costs the US up to 2.2 trillion per year. 34% of adults lacking … Continue reading 48+ US Literacy Statistics 2023