The living arrangements of young adults aged 20 to 29—including the propensity to live in the parental home, as well as to be part of couples—have evolved considerably over the past 30 years, reflecting both cultural norms and socio-economic conditions. [...] Stable share of young adults living in the parental home The 2011 Census of Population showed that 42.3% of the 4,318,400 young adults aged 20 to 29 lived in the parental home,1 either because they never left it or because they returned home after living elsewhere.2 This proportion changed little from 2006 (42.5%). [...] In 2011, 46.7% of men in their twenties lived in the parental home compared to 37.9% of women in this age group. [...] At the census division5 level, there were larger shares of young adults in the parental home in the Atlantic provinces—particularly Nova Scotia—and southern Ontario, and lower proportions in the Prairie provinces and southeastern Quebec (see Map). [...] In general, shares of living in the parental home were above the national average in areas where the cost of living was relatively high, in areas with high proportions of immigrants, or both, although other reasons could also account for variation across the country.