The nuclear family is no longer the norm.
   
The latest census data shows the mom, pop and three kids living under one roof that typified Canadian households of 50 years ago has morphed into a complex and diverse web of family ties.
   
More couples are choosing common law relationships, married couples are in a long-term decline, single parenting continues to rise and the size of families have gradually shrunk.
   
For the first time in 2011, Statistics Canada also measured the number of stepfamilies in the country.
   
The census found one in 10 children lives in some sort of reconstituted arrangement.
   
Stepfamilies were most common in Quebec, and least common in Ontario.