There are nearly one billion CCTV cameras on the world’s streets, but they’re far from evenly spaced. You could walk from edge to edge of some cities without leaving the screen, while other cities are more ‘blind spot’ than ‘in the spotlight.’

We calculated the number of CCTV cameras per km2 in the world's 130 most populous cities. The result? A ranking of the most surveilled cities based on CCTV camera density.

There are nearly one billion CCTV cameras on the world’s streets, but they’re far from evenly spaced. You could walk from edge to edge of some cities without leaving the screen, while other cities are more ‘blind spot’ than ‘in the spotlight.’

We calculated the number of CCTV cameras per km2 in the world's 130 most populous cities. The result? A ranking of the most surveilled cities based on CCTV camera density.