Probably over a hundred if you include the surrounding areas.
The reason local municipalities are cracking down is obviously nuiscense for surrounding business, and the image of the city of Richmond Hill as a center of prostitution. The one reason that is not talked because operators are too afraid to speak out, are links between all those spas and organized crime, see this in light of fentanyl production, i.e. as per factual reports, billions of dollars are funneled back from North America to China to a handful of very large and influential syndicates. For all those reasons, the city has a strong motive to act. A very small number of spas in Richmond Hill are adapting to this by reducing risk and transforming from offering prostitution (well let's call it what it is), to reducing the extras, and focusing on room fee revenue from RMT massage and by attracting female clients.