A new Pew Research Center analysis of Census Bureau data finds that the "post-Millennial" generation is already the most racially and ethnically diverse generation, as a bare majority of 6- to 21-year-olds (52%) are non-Hispanic whites. And while most are still pursuing their K-12 education, the oldest post-Millennials are enrolling in college at a significantly higher rate than Millennials were at a comparable age. The parents of post-Millennials are more well educated than the parents of Millennials and those of previous generations, and this pattern most likely contributes to the relative affluence of the households in which post-Millennials live. The changing patterns in educational attainment are driven in part by the shifting origins of young Hispanics. Post-Millennial Hispanics are less likely than Millennial Hispanics to be immigrants -- 12% of post-Millennial Hispanics were born outside the U.S., compared with 24% of Millennial Hispanics in 2002. Previous research has shown that second-generation Hispanic youth tend to go further in school than foreign-born Hispanic youth. That is borne out in this analysis, as 61% of second-generation Hispanics ages 18 to 20 who were no longer in high school were enrolled in college in 2017, compared with 40% of their foreign-born counterparts. The oldest post-Millennials are less likely than their predecessors to be in the labor force. Only 58% of today's 18- to 21-year-olds worked in the prior calendar year; this compares with 72% of Millennial 18- to 21-year-olds in 2002. And employment among post-Millennials is less likely to be full-time compared with earlier generations. The living arrangements of post-Millennial children are similar to those of Millennials when they were growing up. About two-thirds (65%) of today's 6- to 17-year-olds live with two married parents, slightly lower than the share (68%) of Millennials in that age range who lived in this type of household in 2002. The median household income of post-Millennials exceeds that of earlier generations when they were young. The typical post-Millennial in 2018 lives in a household with an annual income of roughly $63,700 after adjusting for household size. That is slightly higher than the income for the typical household in which Millennials grew up. The generation labeled "post-Millennials" in this report -- referred to elsewhere as Generation Z, the iGen, or Homelanders -- includes those born after 1996. Pew Research Center uses the label "post-Millennials" as a placeholder until more consensus emerges as to their name. For purposes of this analysis, the post-Millennial generation spans 16 years, the same number of years as the Millennial generation (now ages 22 to 37). This report compares the post-Millennials in 2018 with earlier generations when they were ages 6 to 21, examining their demographic characteristics as well as those of their parents and households.