Ironmonger
Brownlow Medallist
- Aug 13, 2001
- 10,507
- 17,903
- AFL Club
- Brisbane Lions

- Other Teams
- Melbourne Victory
It looks like the sports component is one of many components at the end of their Single Source survey.I was curious to know how the survey defined supporter, and if there were any demonstrable behaviours e.g. watching or attending a certain number of games. Couldn't find anything in the full detail
https://roymorgan-cms-dev.s3.ap-sou...8233657/AustraliaFactBrochure2020_JuneWEB.pdf
So quite likely it's a double-barrel - 'Do you support an AFL team?', if yes 'Which AFL team do you support?' pair of questions.
It's not likely they'd ask a lot of additional questions, because they're trying to get people to respond to as many questions as possible over a wide range of subjects. Too many and people tend to lose interest and drop out.
I'm a bit dubious about this methodology, now I look at it. If you give people the option of completing what components they like, then almost certainly people will gravitate to subjects they have an interest in. In this case, the AFL questions are contained in a 'Sports' component, so presumably there's a bias to people who follow any kind of sport. You can weight by strata to alleviate some of that bias but I still reckon you're going to overcount the aggregate number of supporters.
The equivalent results for the Aleague - from the same component of the survey - are interesting.
https://roymorgan-cms-prod.s3.ap-so...2336/10047-A-League-Supporter-Ladder-2025.pdf
Apparently Sydney FC, Melbourne Victory, and the Brisbane Roar each have more than half a million supporters. Significantly more than Hawthorn or Richmond. Obviously that's not true in any meaningful sense.




