Cross-posted from Martin North’s DFA Blog.
Continuing our series on housing and population, and in response to requests, today we provide a state by state summary. This is based on a combination of ABS population and housing data, and modified by our own survey analysis. For each state, we display the estimated number of residential units (both new and existing), the state population, and the ratio between the two. NT has the highest ratio at 3.14% and SA has the lowest at 2.42%.

We can look at the differences across states:









These data series have been corrected for series breaks, and normalised to remove random variations. I also projected the data forward to 2013 using the latest construction data. As I reminded readers yesterday:
Just a warning, these averages are not the same as the average number of people per household, because the distribution of people in households varies considerably and some have more than one home. The US average per household is 2.6, the UK 2.5, and Australia 2.6. The ABS forecast a reduction to 2.3 by 2026.
Finally, there are slight variations between the All States data today, and the summary yesterday. This is due to the total for states not quite adding up to the national summaries, the fact that I normalised the state series to take account of series breaks, and our forward projections from the ABS data was at a state level in the more detailed analysis today.
The remaining question now is to what extent does different average household size and ages in different states impact these figures. That will the subject of a later post. Anyhow, I hope this helps to answer some of the questions I received!