[Alphaeus]

Here in New Zealand, you're required to be enrolled to vote, even if you never intend to actually vote. Enrolling requires an address. I imagine it's similar in Australia, where actually voting is required by law.

I believe in New Zealand other government agencies aren't allowed to access your data without your consent though.

[3uler]

The Electoral Roll is quite different though

https://en.wikipedia.org/wiki/Electoral_roll