Sources: Current Population Survey Annual Social and Economic Supplement (2003–present); March Current Population Survey (1947, 1952–2002); 1940, 1950, and 1960 Census for those years. (See Table A-1 in CPS Historical Time Series.)

Sources: Current Population Survey Annual Social and Economic Supplement (2003–present); March Current Population Survey (1947, 1952–2002); 1940, 1950, and 1960 Census for those years. (See Table A-1 in CPS Historical Time Series.)

Source: American Community Survey (2015)

Note: Click on the charts for the data and an interactive display.

Correction, 12/27/2016: One of the earlier revised versions of the first chart mislabeled the Y-axis as the percentage with a bachelor’s or higher degree. All references to this trend in the book and related articles are accurate, however.

Last updated: 6/14/2018