- Young adults: among 18-to 29-year-olds who say they "definitely voted" in the 2014 midterm election, fully 35 percent had no record of doing so. The figure was a smaller 17 percent among 30-to-49-year-olds, 15 percent among 50-to-64-year-olds, and just 7 percent among people aged 65 or older.
- Hispanics: among Hispanics who say they "definitely voted" in the 2014 midterm election, a substantial 27 percent had no record of doing so. Among Blacks and non-Hispanic Whites, the figure was a smaller 15 percent.
In other words, the CPS is the best we've got. According to the CPS, 20 percent of 18-to-29-year-old citizens and 27 percent of Hispanic citizens reported voting in the 2014 midterm election. Pew's analysis suggests that actual voting rates for these two important segments of the electorate are in fact much lower.
Source: Pew Research Center, Many Americans Say They Voted, But Did They?