Canada has led the way in North America on gathering data on non-traditional living arrangements. The following is a report based on the Canadian General Social Survey on the living apart together population. Unlike the US, the Canadian GSS is collected by a federal entity, Statistics Canada.
Living Apart Together
Martin Turcotte | Statistics Canada
Synopsis: A number of people are in a stable relationship but do not live together, and are known as non-cohabiting or ‘living apart together’ (LAT) couples. How many people are in such a situation? Are they transitioning towards a different kind of life together or making a deliberate lifestyle choice?
The following is a link to the items in the questionnaire that are used to determine LAT status. Warning, the link is pretty slow: