In 2012, I crowdsourced an analysis of the census results, looking at the extent to which the increase in religion was driven by changes in stated affiliation from religious to non-religious, as opposed to the demographic replacement of older more religious cohorts by younger, less religous ones. A couple of wrinkles on this
* I didn’t mention immigration last time. It appears (unsurprisingly) that those born overseas are more likely to be religious, but less likely to be Christian, than the Australian born.
* As the ABS notes
The religious pattern of those under 18 is most similar to the 35-49 year olds, suggesting the form may be completed with their parents’ beliefs.
It seems likely that when they report for themselves, these young people will be more like the 19-34 age group. It’s hard to say whether we should call this an affiliation change or a cohort effect.
I’d like to ask again for a crowdsourced analysis. It may be useful to read the comments thread to my previous request.
