That's why it's called 'The Bush', I guess!
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There are maps for US, UK, and Russia too of course. US appears to have the most even infrastructure/ dispersion with the best ratio of land to people, imo. But RU and AU are where you could really 'get away', with those massive areas neary devoid of population.
I bet China looks similar? http://chinesestudies.prv.pl/population.html
For some reason I might choose China. . . if making a big move.
https://www.google.com/search?q=australia+population+location&biw=948&bih=419&source=lnms&tbm=isch&sa=X&ved=0ahUKEwj6z9jR4a3PAhUEGj4KHYFvAJoQ_AUICCgB#tbm=isch&q=China+countryside&imgrc=74alkJzva9-8JM%3A Such beautiful untouched countryside! Of course unless money was no option your main vehicle in china's countryside would prob be a little pickup.