Non-White young adults are more likely to live with their parents throughout their 20s, more likely to return home after going away to college, and less likely to leave again after returning. Scholars have speculated that subcultural differences in attitudes toward marriage and family play a key role in generating racial/ethnic differences in rates of coresidence with parents among young adults. Data from the National Education Longitudinal Survey of 1988 (N = 11,228) were analyzed in order to test this hypothesis. Attitudes toward marriage and family were significantly associated with coresidence, especially among young men, but did not substantially account for racial/ethnic differences in living arrangements. Among young non-White women and young Black men, higher rates of coresidence were related to differences from Whites in socioeconomic or marital status (and sometimes both) that were largely independent of differences in attitudes toward marriage and family.