"Comparitech researchers collated a number of data resources and reports, including government reports, police websites, and news articles, to get some idea of

"Comparitech researchers collated a number of data resources and reports, including government reports, police websites, and news articles, to get some idea of the number of CCTV cameras in use in 150 major cities across the globe. We focused primarily on public CCTV—cameras used by government entities such as law enforcement." They seem like VERY vey rough estimates. China probaly has the most surveilled city in the world. But effectiveness of camera's is a much more important factor. I've heard of many places in china where you are forced trough gates with photocamera's or active surveillance. China is more than likely to have the most fake camera's in the world as well. https://www.comparitech.com/vpn-privacy/the-worlds-most-surveilled-cities/ https://www.comparitech.com/vpn-privacy/the-worlds-most-surv...